AURLTD105 Task 1
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School
Strathfield College *
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Course
AUR40216
Subject
Mechanical Engineering
Date
Feb 20, 2024
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docx
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30
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RTO No: 91223
Assessment Task 1
AURLTD105 Diagnose and Repair Light Vehicle
Suspension Systems
AURLTD105 Diagnose and repair light vehicle suspension systems
Assessment 1 – Questioning – Written Assessment Student Name
JAYVEE RYEE JAYME
Student ID Number
SCM3144
Unit Start Date
NOVEMBER 27, 2023
Unit End Date
DECEMBER 17, 2023
Assessment Due Date
DECEMBER 17, 2023
Date Submitted
DECEMBER 17, 2023
This cover sheet is to be completed by the student and assessor and used as a record to determine student
competency in this assessment task
The assessment process and tasks were fully explained.
Yes / No
I am aware of which evidence will be collected and how.
Yes / No
I am aware of my right to appeal an assessment decision.
Yes / No
I am aware that I can locate The RTO
Complaints and Appeals Policy and Procedure
on their website at (Insert Website Link)
Yes / No
I have discussed any additional educational support or reasonable adjustments I require in order to undertake this assessment with the Student Support Services Officer and Trainer / Assessor, (if applicable). e.g. Student Handbook
and Access and Equity Policy (Insert Website Link)
Yes / No
I have access to all required resources?
Yes / No
Cheating & Plagiarism Declaration
Student Declaration:
In accordance with The RTO
Plagiarism Policy, I hereby acknowledge by signing this declaration that I have not cheated or plagiarised any work regarding the assessment tasks undertaken in this unit of competency except where the work has been correctly acknowledged.
NOTE: Student MUST
sign this prior to submitting their assessments to the assessor
Signature
JAYVEE RYEE JAYME
Date:
17 / 12 / 2023
Assessment Results
Satisfactory
or
Not Yet
Satisfactory
(Please circle the assessment result for this task)
Feedback to Student - Please provide general feedback on the Student’s performance Student Declaration: - I verify that the work completed is my own and that I was adequately informed of the assessment process prior to commencing this assessment task.
Assessor Declaration: - I verify that I have adequately explained and negotiated the assessment tasks with the
student prior to commencing assessment.
Student Name: JAYVEE RYEE JAYME
Assessor’s Name:
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
01
st
Dec 2020
Document No:
© Strathfield College – AURLTD105
Version No:
1.
0
Last Modified Date:
© Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K
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AURLTD105 Diagnose and repair light vehicle suspension systems
Student Signature
JAYVEE RYEE JAYME
Date: 17 / 12 / 2023
Assessor Signature
Date
Student Guide for Written Knowledge Assessment
Overview of Assessment This is a written assessment task you will be assess on your knowledge of diagnosing and repairing light vehicle suspension systems.
The topics that will be covered in the assessment are:
1. Prepare to diagnose and repair light vehicle suspension system
2. Diagnose light vehicle suspension system
3. Repair light vehicle suspension system
4. Complete work processes
This assessment will ensure that the elements, performance criteria, performance evidence and knowledge evidence required, and conditions are adhered to demonstrate
competency in this unit assessment task.
Read the assessment carefully before commencing.
Your Assessor will use the assessment criteria in this document and will provide
feedback / comment.
You MUST
answer all the questions in the assessment tasks in your own words
and own handwriting.
This is an “Open Book” assessment, and students can use the resources listed in the “Resources Required” section below.
Task/s to be assessed
To complete this written assessment, you will need to answer the 101
questions comprising of Multiple Choice, True and False, Fill-in the Gap and Short Answer questions.
Time allowed
On average, the Assessment should take 4 – 6 hours to complete.
Location
This theory assessment will be completed in a classroom under the supervision of a trainer/assessor.
Decision making rules
The candidate must be able to demonstrate knowledge to complete the tasks outlined in
the elements, performance criteria and foundation skills of this unit, including knowledge
of:
Methods to locate and interpret information required to diagnose and repair light
vehicle suspension systems, including:
o
Information provided by customers and supervisors o
Manufacturer specifications and procedures or equivalent documentation
Workplace procedures required to diagnose and repair light vehicle suspension systems, including: o
Establishing serviceability of tools and equipment
o
Documentation procedures
o
Housekeeping procedures, including:
Examination of tools and equipment
Storage of equipment
Identification, tagging and isolation of faulty equipment
Disposal of excess materials
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
Dec 2020
Document No:
© Strathfield College – AURLTD105
Version No:
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Last Modified Date:
© Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K
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AURLTD105 Diagnose and repair light vehicle suspension systems
Recycling procedures
Workplace health and safety (WHS) requirements relating to diagnosing and repairing light vehicle suspension systems, including identifying hazards and controlling risks associated with:
o
Working with stored energy in springs and torsion bars, including procedures for removing tension from suspension components
o
Manual handling heavy suspension system components
Principles of light vehicle suspension systems and associated components, including:
o
Rigid and independent suspensions
o
Sprung and unsprung mass
o
Ride and curb height
Purpose and operation of light vehicle suspension systems and components, including:
o
Coil spring suspension, including:
Types of coil springs and deflection rates
Front coil spring suspension arrangements, including short arm
and long arm suspension
Rear coil spring suspension arrangements
o
Strut or MacPherson suspension
o
Leaf spring suspension
o
Torsion bar suspension
o
Multi-link suspension
o
Hydraulic suspension
o
Pneumatic suspension
o
Suspension system components, including:
Ball joint function and operation
Stabiliser bar function and operation
Watts link and panhard rod function and operation
o
Independent rear suspension arrangements and operation
o
Shock absorber function and operation, including:
Gas-filled shock absorbers
Strut or MacPherson shock absorbers
o
Hub assemblies and bearing arrangements, including:
Hubs with tapered roller bearings
Hubs with unitised bearings
Diagnostic testing procedures for light vehicle suspension systems, including procedures for analysing:
o
Component wear
o
Abnormal system noise
Repair procedures for light vehicle suspension systems, including procedures for:
o
Removing and replacing:
Ball joints
Suspension bushes
Shock absorbers
Macpherson struts
Coil springs
Leaf springs
Torsion bars
o
Compressing coil springs
o
Replacing and adjusting bearings for hubs with:
Tapered roller bearings
Unitised bearings
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
01
st
Dec 2020
Document No:
© Strathfield College – AURLTD105
Version No:
1.
0
Last Modified Date:
© Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K
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AURLTD105 Diagnose and repair light vehicle suspension systems
Post-repair testing procedures for light vehicle suspension systems
Assessment conditions
Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.
Assessment MUST
include direct observation of tasks.
Where assessment of competency includes third-party evidence, individuals MUST
provide evidence that links them to the light vehicle suspension systems that they have worked on, e.g., Repair orders.
Assessors MUST
verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.
The following resources MUST
be made available:
Automotive repair workplace or simulated workplace
Workplace instructions
Manufacturer suspension system specifications
Light vehicles with faults in the suspension systems specified in the performance evidence
Diagnostic equipment for light vehicle suspension systems
Tools, equipment and materials appropriate for repairing light vehicle suspension systems
Assessors of this unit MUST
satisfy the requirements for assessors in applicable vocational education and training legislation, frameworks and/or standards.
Resources required
Learning Resources available to students include:
Automotive Technology (A System Approach) 7
th
Edition – Chapters 2, 5, 6, 7, 45 & 46
Websites –
Trainer Handouts
Results/Re-assessment
The Assessor will grade the assessment and record the result on the front page
of this document (S) – Satisfactory if all observable behaviours are correct and (NS) not satisfactory if any areas are left incorrect
Feedback will be provided on either result
Where a student receives a ‘NS – Not Satisfactory’ result, the assessor will discuss the area of the non-compliant observable behaviour and an opportunity given for re-assessment. This may be through direct observation or a different method of assessment e.g. verbal/oral questioning, problem solving exercise.
If the outcome is again not satisfactory the student result will be deemed (NYC) not yet competent. Additional feedback will be given, and a time agreed upon for further assessment after additional training and skills practice has taken place, this information will be recorded, dated and signed in the re-assessment area on the last page of this document
Where all the assessment tasks have been graded (S) Satisfactory, the student will be deemed C – Competent for the practical component and the result recorded and signed in the area indicated on the last page of this document
Reasonable Adjustment
If the participant is unable to undertake the written assessment as designed, an interview (verbal questioning) may be used as an alternate approach.
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
01
st
Dec 2020
Document No:
© Strathfield College – AURLTD105
Version No:
1.
0
Last Modified Date:
© Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K
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AURLTD105 Diagnose and repair light vehicle suspension systems
Assessment 1 – Questioning Written Assessment 1.
Identify four (4) important items of personal safety protection or PPE when diagnosing faults on light vehicle suspension systems?
1
Safety Glasses or Goggles
2
Gloves
3
Steel-Toe Boots
4
Hearing Protection
Fill in the Missing Words
2.
Place the missing words to complete the following statement about working safely with suspension systems using the following words.
Missing Words: disconnect, force, injury, knuckle, spring
The coil spring exerts a tremendous ________
force_______ on the control arm. Before you ______
disconnect_________ either control arm from the ______
knuckle_________ for any service operation,
contain the spring with a ______
spring_________ compressor to prevent it from flying out and causing ______
injury_________.
True or False question
True or False question
3.
When lifting and moving heavy suspension components, twist at the waist to change direction.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
4.
When lifting and moving heavy suspension components, you must ________. A.
Place your feet close to the heavy suspension components. Position your feet so you will be able to maintain a good balance.
B.
Keep your back and elbows as straight as possible. Bend your knees until your hands reach the best place to get a strong grip on the object.
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
Dec 2020
Document No:
© Strathfield College – AURLTD105
Version No:
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Last Modified Date:
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AURLTD105 Diagnose and repair light vehicle suspension systems
C.
Keep the heavy suspension components
close to your body, and lift it up by straightening your legs. Use your leg muscles, not your back muscles.
D.
All the answers are correct.
Fill in the Missing Words
5.
Place the missing words to complete the following statement about rigid (live axle) and independent suspension systems using the following words.
Missing Words: axles, commercial, move, reduces, road, transferred, wheel.
Rigid _______
axles________
connect the wheels on each side of the vehicle so that some of the _______
wheel________
movement of one wheel will be ______
transferred_________
through the axle to the
_______
road________
on the other side of the vehicle. Rigid axles are used on the rear of light _______
commercial_______
vehicles and some passenger vehicles.
With independent front or rear suspensions, the wheels are able to _______
move________ up and down independently of each other, and this ______
reduces_________ body movement to improve vehicle ride.
6.
Identify three [3] tasks that an independent front wheel suspensions system must perform.
1
Wheel Movement Independence
2
Maintaining Tire Contact with the Road
3
Enhancing Ride Comfort and Handling
7.
Explain the difference between sprung mass and unsprung weight?
The sprung mass refers to the part of the vehicle's total mass that is supported by the suspension system and contributes to the overall weight transfer during acceleration, braking, and cornering while Unsprung weight, on the other hand, refers to the mass that is not supported by the suspension system and includes components directly connected to the wheel assemblies.
8.
What does vehicle ride height determine?
Vehicle ride height refers to the vertical distance between the ground and a specific point on a vehicle, often measured at the chassis or body. The determination of ride height is a critical aspect of vehicle design and suspension setup, and it affects several key aspects of a vehicle's performance and characteristics. Vehicle ride height is a multi-faceted parameter that affects the vehicle's handling, stability, aerodynamics, off-road capability, and overall visual appeal. Achieving the right balance in ride height is crucial for designing a vehicle that meets the intended performance and functionality requirements. Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
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AURLTD105 Diagnose and repair light vehicle suspension systems
Multiple Choice question. Select the correct answer.
9.
Proper vehicle ride height is a compromise between ________ without sacrificing safety.
A.
Practicality.
B.
Handling.
C.
Stability.
D.
All the answers are correct.
True or False question
10.
Curb height is an important dimension because it affects the other alignment angles.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
11.
The core of any suspension system is the ________.
A.
Wheel spindle assembly.
B.
Spring.
C.
Ball joint.
D.
Control arms.
12.
List at least five [5] functions of the suspension system
1
Shock Absorption
2
Maintaining Tire Contact with the Road
3
Load Support
4
Body Roll Control
5
Wheel Alignment
Multiple Choice question. Select the correct answer.
13.
The coil springs of the vehicle __________?
A.
Support the weight of the vehicle.
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
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AURLTD105 Diagnose and repair light vehicle suspension systems
B.
Respond to wheel jounce.
C.
Respond to wheel rebound.
D.
All answers are correct.
14.
Identify the three [3] types of springs used in front and rear suspensions system.
1
Coil Springs
2
Leaf Springs
3
Torsion Bars
15.
There are two [2] basic designs of coil springs. What are they?
1
Compression Springs
2
Tension (Extension) Springs
Multiple Choice question. Select the correct answer.
16.
A coil spring that is cylindrical in overall shape and has closely spaced coils at one end and widely space coils
at the other end is called a __________ spring.
A.
Torsional reflex.
B.
Progressive rate.
C.
Truncated cone.
D.
Barrel.
17.
Explain how the linear rate spring operates?
A linear-rate spring is a mechanical component commonly used in various engineering applications, including suspension systems in vehicles, mechanical devices, and industrial machinery. Its primary function is to store and release mechanical energy as a result of deformation under an applied force. A linear-rate spring operates based on Hooke's Law, exhibiting a linear relationship between the applied force and the resulting deformation. Its constant rate of stiffness and predictable behavior make it suitable for various engineering applications. 18.
Explain the design and operation of the variable rate spring?
Document Name:
Student Written Knowledge Assessment – AURLTD105
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AURLTD105 Diagnose and repair light vehicle suspension systems
A variable rate spring, also known as a progressive rate spring, is a mechanical component designed to provide a nonlinear response to applied force or displacement. Unlike linear-rate springs, which have a constant rate of stiffness, variable rate springs exhibit a changing rate of stiffness as they compress or extend. The design and operation of a variable rate spring involve a coil structure with varying pitch, tapered ends, and a nonlinear response to applied force. This design allows for a progressive increase in stiffness during compression or extension, making variable rate springs suitable for applications where a balance between comfort and performance is desired. Multiple Choice question. Select the correct answer.
19.
A typical Short-Long Arm (SLA) suspension system has ______.
A.
An upper short arm and a lower long arm.
B.
Two arms of equal length.
C.
A lower short arm and an upper long arm.
D.
None of these answers is correct.
Fill in the Missing Words
20.
Place the missing words to complete the following statement about short and long arm suspension using the following words.
Missing Words: arms, joint, moves, steering, wheel
Each ______
wheel_________ is independently connected to the frame by a _____
steering__________ knuckle, ball _______
joint________ assemblies, and short upper and longer lower control _______
arms________. Because the upper arm pivots in a shorter arc, the top of the wheel ________
moves_______ in and out slightly, but the tire’s road contact remains constant.
Multiple Choice question. Select the correct answer.
21.
What occurs when a wheel hits a dip or hole and moves downward?
A.
Jounce.
B.
Free length.
C.
Deflection.
D.
Rebound.
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
Dec 2020
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AURLTD105 Diagnose and repair light vehicle suspension systems
22.
Name the three [3] basic types of rear suspensions arrangements.
1
Solid Rear Axle
2
Independent Rear Suspension (IRS)
3
Semi-Independent Rear Suspension
Multiple Choice question. Select the correct answer.
23.
What type of rear suspension is subject to axle tramp?
A.
Live axle with coil springs.
B.
Live axle with leaf springs.
C.
Double wishbone.
D.
Multilink.
True or False question
24.
Strut design in the conventional MacPherson strut, the coil spring surrounds the upper part of the strut.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
25.
Which of the following is NOT part of an upper strut (MacPherson) mount?
A.
Ball bearing.
B.
Rubber core.
C.
Upper spring seat.
D.
Upper ball joint.
Multiple Choice question. Select the correct answer.
26.
The MacPherson strut system uses a ________-type ball joint?
A.
Compression.
B.
Tension.
C.
Follower.
D.
None of the answers is correct.
Fill in the Missing Words
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
Dec 2020
Document No:
© Strathfield College – AURLTD105
Version No:
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Last Modified Date:
© Strathfield College | RTO Code: 91223 | CRICOS Code: 02736K
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AURLTD105 Diagnose and repair light vehicle suspension systems
27.
Place the missing words to complete the following statement about MacPherson struts using the following words.
Missing Words: appearance, combination, MacPherson, operate, shock, spring, steering, strut, suspension
The MacPherson ______
strut_________ suspension is dramatically different in _____
appearance__________ from the traditional independent front ______
suspension_________, but similar components ______
operate_________ in the same way to meet suspension demand.
The _____
MacPherson__________ strut suspension’s most distinctive feature is the ______
combination_________ of the main elements into a single assembly. It typically includes the _______
spring________, upper suspension locator, and ________
shock_______ absorber. It is mounted vertically between the top arm of the ______
steering_________ knuckle and the inner fender panel.
True or False question
28.
All leaf springs are mounted to the vehicle lengthwise.
☐
True
or
☐
False
True or False question
29.
Multi-leaf springs are fixed rate springs.
☐
True
or
☐
False
True or False question
30.
A centring pin is often used on a leaf spring to keep the axle properly located on the springs.
☐
True
or
☐
False
True or False question
31.
A leaf spring may be made from a fibre composite material.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
32.
Which of the following is NOT a type of leaf spring?
A.
Carbon/carbon composite.
Document Name:
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AURLTD105 Diagnose and repair light vehicle suspension systems
B.
Multiple leaf.
C.
Fibre composite.
D.
Monoleaf.
Multiple Choice question. Select the correct answer.
33.
In what type of leaf spring is the centre of the spring mounted to the vehicle’s chassis and the outer ends fastened to the ends of the axle housing or wheel spindles
?
A.
Asymmetrical.
B.
Longitudinal.
C.
Transverse.
D.
Bilateral.
Multiple Choice question. Select the correct answer.
34.
Torsion bar suspension is usually found on.
A.
High-performance cars.
B.
Luxury cars.
C.
Economy cars.
D.
Light pick-up and SUV’s.
Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
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AURLTD105 Diagnose and repair light vehicle suspension systems
Fill in the Missing Words
35.
Place the missing words to complete the following statement about torsion bar suspension using the following words.
Missing Words: absorb, attached, compressing, heat-treated, lowered, resists, springs, twists, wheel
Torsion bars serve the same function as coil ______
springs_________. In fact, they are often described as straightened-out coil springs. Instead of ______
compressing_________ like coil springs, a torsion bar ______
twists_________ and straightens out on the recoil. That is, as the bar twists, it ______
resists________
up-and-down movement. One end of the bar – made of ______
heat-treated_________ alloy spring steel – is attached to the vehicle frame. The other end is ______
attached_________ to the lower control arm.
When the ______
wheel_________ moves up and down, the lower control arm is raised and ______
lowered_________. This twists the torsion bar, which causes it to ______
absorb_________ road shocks.
36.
What are three (3) different multi-link rear suspensions?
1
Double Wishbone (A-Arm) Suspension
2
Four-Link Suspension
3
Five-Link Suspension
True or False question
37.
A multilink rear suspension uses several control arms to guide the wheel.
☐
True
or
☐
False
38.
Explain the purpose hydropneumatic suspension system?
A hydropneumatic suspension system is a type of vehicle suspension that combines the principles of hydraulics and pneumatics to provide a smooth and adjustable ride. A hydropneumatic suspension system aims to provide a comfortable and adjustable ride while offering benefits in terms of handling, stability, and adaptability to different driving conditions. 39.
What is the purpose of the “GAS” in an hydropneumatic suspension system?
In a hydropneumatic suspension system, the term "GAS" usually refers to the gas component of the system, often Document Name:
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AURLTD105 Diagnose and repair light vehicle suspension systems
nitrogen gas. The purpose of the gas in a hydropneumatic suspension system is to provide additional spring characteristics and contribute to the overall functionality of the system. The gas component in a hydropneumatic suspension system plays a crucial role in shaping the system's spring characteristics, regulating pressure, preventing cavitation, and contributing to the overall performance and adaptability of the suspension system. Multiple Choice question. Select the correct answer.
40.
The most advanced computer-controlled suspension systems are true active suspensions. They use high-
pressure _____ actuators to carry the vehicle’s weight rather than conventional springs or air springs.
A.
Hydraulic.
B.
Pneumatic.
C.
Electromagnetic.
D.
Vacuum.
Fill in the Missing Words
41.
Place the missing words to complete the following statement about adaptive (pneumatic) suspension using the following words.
Missing Words: computer, damping, mode, road, sensors, shock, spring, systems, vehicle
Adaptive suspensions use electronic ______
shock_________ absorbers with variable valving. In some cases,
variable air ______
spring_________ rates are used to adapt the vehicle’s ride characteristics to the prevailing
______
road_________ conditions or driver demands. Electronic _______
sensors________ monitor factors such as vehicle height, _______
vehicle________ speed, steering angle, braking force, door position, shock _______
damping________ status, engine vacuum, throttle position, and ignition switching. A _____
computer__________ is used to analyse this input and switch the suspension into a pre-set operating ______
mode_________ that matches existing conditions. Some ______
systems_________ are fully automatic. Others allow the driver to select the ride mode.
42.
What does the compressor do in the adaptive (pneumatic) suspension system?
The compressor in an adaptive (pneumatic) suspension system actively manages air pressure to control the characteristics of the air springs, providing the system with the flexibility to adapt to varying driving conditions and optimize ride comfort and performance. Document Name:
Student Written Knowledge Assessment – AURLTD105
Created Date:
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st
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AURLTD105 Diagnose and repair light vehicle suspension systems
True or False question
43.
The airflow to the springs is controlled by the interaction of the air compressor, system sensors, computer control module, and solenoid valves. All of the air-operated parts of the system are connected by nylon tubing.
☐
True
or
☐
False
44.
What is the purpose of the ball joint?
A ball joint is a crucial component in a vehicle's suspension system and serves several important purposes: Allowing Articulation, Enabling Steering Movement, Supporting Load Transfer, Facilitating Smooth Ride, Maintaining Wheel Alignment, Absorbing Impact, Promoting Flexibility and Supporting Control Arm Movement.
Multiple Choice question. Select the correct answer.
45.
Ball joints are mounted to the control arms by.
A.
Rivets and bolts.
B.
Press fit.
C.
Being threaded into the control arm.
D.
All answers are correct.
True or False question
46.
Ball joints are a load-carrying ball joint supports the car’s weight and is generally found on the control arm that
the spring rests on.
☐
True
or
☐
False
47.
How does a stabiliser bar work?
A stabilizer bar, also known as a sway bar or anti-roll bar, is a component in a vehicle's suspension system designed to reduce body roll and improve stability during cornering. A stabilizer bar works by resisting body roll during cornering, transferring forces between the left and right sides of the suspension. This enhances stability, traction, and overall handling performance in various driving situations. Document Name:
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AURLTD105 Diagnose and repair light vehicle suspension systems
True or False question
48.
The stabiliser bar provides directional stability by reducing body roll.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
49.
The stabiliser bar link connects the stabiliser bar to the.
A.
Steering knuckle.
B.
Lower control arm.
C.
Frame/unibody.
D.
Torsion bar.
Multiple Choice question. Select the correct answer.
50.
When both front wheels go into jounce, the stabiliser bar?
A.
Transfers the jounce force from the front wheels to the rear axle.
B.
Transfers the jounce force to the shock absorbers.
C.
Transfers the jounce force to the frame/unibody.
D.
Pivots in its bushings but does not transfer any force.
51.
What does the Panhard rod do?
A Panhard rod, also known as a track bar or lateral link, is a suspension component used to control the lateral movement or side-to-side motion of the axle in a vehicle. While the Panhard rod is effective in controlling lateral axle movement, it's worth noting that more complex multi-link suspension systems, such as those with a Watts linkage or a multi-link rear suspension, can provide even more precise control over axle movement and offer additional benefits in terms of ride comfort and handling. 52.
What is a Watts link?
A Watts link, or Watt's linkage, is a type of mechanical linkage used in vehicle suspensions to control the lateral movement of the axle. It is designed to maintain a consistent axle position and minimize lateral displacement during
vertical motion. The Watts link is named after James Watt, the Scottish engineer who contributed significantly to the
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AURLTD105 Diagnose and repair light vehicle suspension systems
True or False question
53.
Polyurethane suspension bushings improve the vehicle’s road-holding ability and handling.
☐
True
or
☐
False
True or False question
54.
Polyurethane suspension bushings help reduce torque steer in FWD vehicles.
☐
True
or
☐
False
True or False question
55.
Rubber bushings used in a control arm flex and twist as the control arm moves up and down.
☐
True
or
☐
False
56.
What are the three (3) main types of independent rear suspensions system on light vehicles?
1
Multilink Suspension:
2
Double Wishbone (or A-Arm) Suspension:
3
MacPherson Strut Suspension:
57.
On a front wheel drive vehicle, the strut independent rear suspension system, what is the function of the lateral control arms?
Lateral control arms, also known as lateral links or control arms, are components of the suspension system that play a crucial role in controlling the side-to-side movement of the rear wheels. These arms are part of the multi-link suspension design commonly found in independent rear suspension setups. The lateral control arms in an independent rear suspension system of a rear-wheel-drive vehicle contribute to lateral stability, alignment control, maintenance of suspension geometry, and absorption of lateral forces during various driving conditions. 58.
What are swing axles and where can they be found?
A swing axle is a type of independent suspension design used in some older vehicles. It was particularly common in
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rear-wheel-drive vehicles, but it's less prevalent in modern cars. The swing axle design is characterized by axles that pivot at or near their midpoint, allowing the wheels to move independently of each other. It's important to note that swing axles are not commonly found in modern vehicles. Most contemporary cars use more sophisticated suspension systems, such as independent rear suspensions with multi-link or double-wishbone setups, which offer improved ride comfort, handling, and safety. However, swing axles are still a part of automotive history and can be found in older or vintage vehicles. True or False question
59.
Shock absorbers are always mounted vertically, not at an angle.
☐
True
or
☐
False
True or False question
60.
The faster a shock absorber moves, the more resistance it has to the movement.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
61.
Gas-filled shock absorbers perform better on rough roads because the pressurised gas?
A.
Increases the spring rate.
B.
Increases extension resistance.
C.
Helps prevent fluid aeration.
D.
Absorbs heat energy.
True or False question
62.
Shock absorbers, despite their name, actually dampen spring movement instead of absorbing shock.
☐
True
or
☐
False
Fill in the Missing Words
63.
Place the missing words to complete the following statement about wheel bearings using the following words.
Missing Words: axle, bad, commonly, front, housing, hub, maintenance, shaft, Tapered, wheel
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AURLTD105 Diagnose and repair light vehicle suspension systems
The purpose of all bearings
is to allow a shaft to rotate smoothly in a _______
housing________ or to allow the housing to rotate smoothly around a shaft. Wheel and _______
axle________ bearings do this for a vehicle’s wheels. Typically, on driving axles, the _______
wheel________ is mounted to the hub of an axle shaft and the _______
shaft________ rotates within a housing on an axle bearing. Wheel bearings are used on non-driving axles. The wheel’s ______
hub_________ rotates on a shaft called the spindle. Axle bearings are typically serviced with the drive axle. ______
Tapered_________ roller wheel bearings, however, require periodic _____
maintenance__________ and are often serviced with suspension and brake work. Although there is a distinction between axle and wheel bearings, the bearings for the _______
front________ wheels on
a FWD and 4WD vehicle are _______
commonly________ called wheel bearings. Regardless of what they are called, _______
bad________ bearings can cause noise, vibration, handling, and tire wear problems.
True or False question
64.
A weak suspension spring can affect the wheel alignment.
☐
True
or
☐
False
True or False question
65.
A weak suspension spring can cause poor braking.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
66.
A technician is checking a suspension complaint. He depresses the front bumper a few inches by hand then releases it. When the front bumper is released, it oscillates up and down about three times before coming to rest. What could be the problem?
A.
Worn ball joints.
B.
Worn stabiliser links.
C.
Worn shock absorbers.
D.
Worn springs.
Multiple Choice question. Select the correct answer.
67.
Which of the following would NOT cause rattling noise on road irregularities?
A.
Worn shock absorbers.
B.
Leaking shock absorbers.
C.
Broken spring insulators.
D.
Worn strut rod grommets.
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AURLTD105 Diagnose and repair light vehicle suspension systems
Multiple Choice question. Select the correct answer.
68.
A weak spring will NOT cause.
A.
Poor braking.
B.
Abnormal steering.
C.
Premature U-joint failure.
D.
Premature ball joint failure.
Multiple Choice question. Select the correct answer.
69.
When checking the front ball joints on a vehicle that has the springs mounted on the lower control arms, a jack
should be placed under the _____ to take the spring tension off the ball joint.
A.
Inboard end of the lower control arm.
B.
Outboard end of the lower control arm.
C.
Frame/unibody.
D.
Strut rod.
Multiple Choice question. Select the correct answer.
70.
Radial and axial in the ball joints is checked using a?
A.
Straightedge.
B.
Dial caliper.
C.
Beam-type torque wrench.
D.
Dial indicator.
71.
Identify six (6) problems caused by sagging coil springs.
1
Poor Ride Quality 4
Alignment Issues 2
Uneven Tire Wear 5
Increased Bottoming Out 3
Reduced Handling and Stability 6
Compromised Brake Performance 72.
Looking at the two shock absorbers below, which one is the faulty shock absorber and why?
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B
73.
What are the three (3) types of abnormal noises that may be heard from a faulty suspension?
1
Knocking or Clunking Noises
2
Squeaking or Creaking Noises
3
Rattling or Metal-on-Metal Sounds
True or False question
74.
Torsion bars are directional and are marked either right or left to identify on which side it is to be used when replacing them.
☐
True
or
☐
False
True or False question
75.
The simplest way to remove a ball joint is by heating the control arm near the ball joint with an oxyacetylene torch, then driving the ball joint out using a hammer and brass drift.
☐
True
or
☐
False
True or False question
76.
A technician replaces front coil springs in pairs.
☐
True
or
☐
False
True or False question
77.
A technician marks the coil springs for position and orientation when removing coil springs that will be reused.
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B
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☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
78.
After installing a new control arm bushing, the control arm end cap nuts or bolts should not be torqued until the vehicle?
A.
Is at curb height.
B.
Has been bounced and allowed to settle out.
C.
Front end has been aligned.
D.
Both “is at curb height” and “has been bounced and allowed to settle out”.
Fill in the Missing Words
79.
Place the missing words to complete the following statement about replacing a coil spring using the following words.
Missing Words: arm, ball, bungee, compressors, control, forcing, joints, lowered, plates, positioned, remove, spring, stabilizer, support, washer
To remove a coil spring, raise and _______
support________ the vehicle by its frame. Let the control ______
arm_________ hang free. Remove wheels, shock absorbers, and ______
stabilizer_________ links. Disconnect the outer tie-rod ends from their respective arms. _______
Remove________ the brake caliper and support it with a wire or ________
bungee_______ cord so it does not hang on the brake hose. Unload the ball _______
joints________ with a roll-around floor jack. Jack under the lower ______
control_________ arm from the opposite side of the vehicle. This allows the jack to roll back when the control arm is _______
lowered________. Position the jack as close to the lower ______
ball_________ joint as possible for maximum leverage against the spring. The _______
spring________ is ready for the installation of the spring compressor. There are many different types of spring ______
compressors_________. One type uses a threaded compression rod that fits through two _______
plates________, an upper and lower ball nut, a thrust washer, and a forcing nut. The two plates are ______
positioned_________ at either end of the spring. The compression rod fits through the plates with a ball nut at either end. The upper ball nut is pinned to the rod. The thrust _______
washer________ and forcing nut are threaded onto the end of the rod. Turning the ______
forcing_________ nut draws the two plates together and compresses the spring.
Multiple Choice question. Select the correct answer.
80.
From the image below, what is the technician fitting with the pressing tool into the control arm?
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A.
Tie-rod end.
B.
Ball joint.
C.
U-joint.
D.
Stabiliser link bush.
81.
If the ball joint is riveted, how are the rivets removed to replace the ball joint and how is the new ball joint fitted?
When a ball joint is riveted and needs replacement, the process involves removing the old rivets and then securing the new ball joint in place. Here are the general steps: Drill Out Rivets, Use a drill to carefully and completely remove the heads of the rivets. Be cautious not to damage the surrounding components while drilling. Remove Remaining Rivet Material, After drilling out the rivet heads, the remaining shank of the rivet needs to be punched or pressed out. This can be done using a suitable tool. 82.
Explain how control arm bushes removed and replaced?
Lift and Secure the Vehicle: Use a jack to lift the vehicle and secure it on jack stands. Ensure that the vehicle is stable and secure before proceeding. Locate and Remove the Control Arm: Identify the control arm that contains the bushings you want to replace. Use appropriate tools to remove any components obstructing access to the control arm. Support the Control Arm: If necessary, use a jack or other support to provide additional support to the control arm when removing and installing bushings. Remove Old Bushings: Depending on the design, control arm bushings may be pressed in or held in place with bolts. Use a suitable method to remove the old bushings. This might involve using a bushing removal tool, press, or
other methods depending on the design. Clean the Control Arm: Clean the control arm thoroughly, removing any debris, rust, or residue from the old bushings. Install New Bushings: Apply lubricant or penetrating oil to the new bushings and press them into place on the control arm. Use a bushing installation tool or press to ensure proper seating. Secure the Control Arm: Once the new bushings are in place, secure the control arm back into its original position. Tighten any bolts or nuts to the manufacturer's specifications using a torque wrench. Lower the Vehicle: Carefully lower the vehicle from the jack stands. Test and Align: Before driving the vehicle, perform a test drive to assess the suspension. Additionally, consider getting a wheel alignment if necessary, as control arm bushings can affect alignment. Document Name:
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83.
From the two (2) images below, what is the technician doing?
Inspect the suspension components for damage or wear and Check Alignment. Fill in the Missing Words
84.
Place the missing words to complete the following statement about replacing a leaf spring using the following words. Missing Words: absorber, housing, insulator, jack, remove, shackle, springs, stands, U-bolts, vehicle, wheel
1
Raise the _______
vehicle________
with a jack under the centre of the rear-axle housing, and place ______
stands_________
under the subframe to support the rear of the vehicle. 2
Remove the _______
wheel________
to make the spring more accessible. 3
Disconnect the shock ______
absorber_________
at its lower mounting, or at both mountings if it is to be removed. 4
Lower the jack so that the ______
spring_________
hang. 5
Remove the nuts from the _____
_U-bolts_________
and remove the spring plate and ______
insulator_________
from under the spring
6
Remove the U-bolts and raise the ______
jack________
until it lifts the rear axle from the spring. The jack now supports the rear-axle ______
housing_________.
7
Disconnect the rear ______
shackle_________
and lower the end of the spring to the floor. 8
Remove the bolt from the spring hanger at the front of the spring and _______
remove________
the spring.
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85.
From the images below, explain the four step (4) process to remove the tapered roller bearings from the rear drum assembly.
1
Removed the outer rear drum
2
Removed the wheel bearing
3
Remove the seal
4
Releasing the inner bearing
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Fill in the Missing Words
86.
Place the missing words to complete the following statement about fitting tapered roller bearings using the following words.
Missing Words: adjusted, bearings, end-float, grease, rollers, seal
1
Pack the _______
bearings________
with specified grease, ensuring that all the space between the ______
rollers_________
and the cage is completely filled.
2
Coat the spindle and the inside of the hub with ______
grease_________. Grease should also be applied to the seal surface and to the inside of the ______
hub_________.
3
After the hub and bearings are installed, the bearings should be ______
adjusted_________. Generally, they are given minimum _______
end-float________
or a light preloading.
87.
How is the unitised bearing retained in the steering knuckle?
A unitized bearing, often referred to as a cartridge bearing, is a type of bearing assembly that combines multiple components into a single unit for easier installation and maintenance. The retention of a unitized bearing in the steering knuckle depends on the design of the specific vehicle and steering system. 88.
Consider the various post service checks that you would make during a road test on the suspension system?
Here are various checks to consider during a road test on the suspension system: Steering Responsiveness, Alignment, Smooth Ride, Braking Performance, Cornering Stability, Shock Absorption, Checking for Leaks, Tire Wear, Check for Abnormal Noises,Verify Component Tightness, Verify Adjustment Settings, and Evaluate Ride Height. It's essential to conduct these checks in a safe and controlled environment, adhering to traffic rules and regulations. If any issues are identified during the road test, further inspection and adjustments may be necessary. If you're unsure about any aspect of the road test or post-service checks, it's recommended to consult a qualified mechanic or technician for assistance. Multiple Choice question. Select the correct answer.
89.
Which source of information will give you the most detail about diagnose and repair suspension systems on the vehicle you are working on?
A.
Workshop manual.
B.
Owner’s manual.
C.
Google.
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D.
Textbooks.
90.
Why is it very important that the Job Card is completed correctly?
Completing the job card correctly is crucial for several reasons in the automotive repair and service industry: Documentation of Work Done, Communication Between Departments, Customer Communication, Legal and Compliance Requirements, Quality Control and Accountability, Billing and Invoicing, Service History Recording, Efficient Workflow and Time Management, and Customer Satisfaction. In summary, completing the job card correctly is essential for maintaining accurate records, ensuring effective communication, complying with legal requirements, and delivering high-quality automotive services to customers. True and False
91.
An automotive technician must adhere to workshop safety guidelines and procedures when using all tools and
equipment.
☐
True
or
☐
False
True and False
92.
An automotive technician is required to document the work that was performed on a vehicle. Writing or typing in the description of the steps performed during the diagnosis of the vehicle should be worded as if the technician is talking to the customer.
☐
True
or
☐
False
True and False
93.
Inspect your tools for cracks, broken parts, or other dangerous conditions before you use them. Never use broken or damaged tools.
☐
True
or
☐
False
True and False
94.
For best results and long tool life, each tool used must be cleaned and checked before placing it back into the toolbox.
☐
True
or
☐
False
Multiple Choice question. Select the correct answer.
95. Lockout/tagout
practices and procedures are intended to reduce the risk of automotive technicians’ inadvertently using tools, equipment or materials that have been determined to?
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A.
Be unsafe or potentially unsafe.
B.
That are in the process of being serviced.
C.
Both “
Be unsafe or potentially unsafe” and “That are in the process of being serviced”
.
D.
Neither “Be unsafe or potentially unsafe” and “That are in the process of being serviced”.
True and False
96.
Disposing of worn or damaged control arms can be recycled in a metal recycling drum.
☐
True
or
☐
False
True and False
97.
Second-hand steering components, shock absorbers, springs etc that are in good condition can be reused on the other vehicles of the same make and model?
☐
True
or
☐
False
True and False
98.
An automotive technician must adhere to workshop safety guidelines and procedures and follow the manufactures procedures in the workshop manual when diagnosing faults in suspension systems.
☐
True
or
☐
False
99.
You are replacing the rear lower control arm on a Mitsubishi Pajero and require the torque specifications for the mounting bolts and what condition the vehicle should be in when tightening the bolts. Referring to the Mitsubishi Pajero “Rear Suspension” Workshop Manual, locate and interpret the torque specifications for the mounting bolts condition the vehicle should be in when tightening the bolts:
Torque Specifications for the Mounting Bolts: 15Nm
Condition Tightening the Bolts: 216 - 245 Nm
Multiple Choice question. Select the correct answer.
100.
A work order is selected or assigned to a service technician who then performs the listed tasks. The work order should be written so that the technician knows exactly what needs to be done. However, if there is any doubt, the technician should clarify the needed task with the ________ or the person who spoke to the customer.
A.
Service advisor
.
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B.
Service technician.
C.
Spare parts manager.
D.
New car sales manager.
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uestion 4
Quz navigation
Gate AB in Figure below is 1.0 m long and 0.9 wide. Calculate force F on the gate and position X of its centre of
Not yet
answered
pressure.
Marked out of
Finish attempt
10,000
Rag question
3m
Oil,
s.g.=Q81
7m
1.0m
B
50
Answer
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I need GF,CF,CD asap please
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Help!!! Please answer all Correctly!!! Please
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I need soolutions for CD,CF,GF
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The answers to this question s wasn't properly given, I need expert handwritten solutions
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Help!!! Please answer part b correctly like part A. Please!!!!
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Per Bartleby honor code only 3 subparts of a question can be answered per submission. I have submitted 10, 11, 12, and 13 previously. Please answer 14, 15, 16
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Could you please explain where and what is tight side and also how to find 5-9
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people in a collision.
* Decide whether each of the following statements is true (T) or false (F). Place your
answer in the blank space provided.
a. Restraining features operate continuously while you are driving.
b. Operational features hold vehicle occupants in place.
C. Brakes are an example of a structural feature.
d. Crumple zones are examples of operational features.
e. An air bag is an example of a restraining feature.
5. Crumple zones increase the
occupants and the interior of the vehicle.
of the collision between the
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Chapter 12 - Lecture Notes.pptx: (MAE 272-01) (SP25) DY...
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Question 7
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QUESTION 7
A model tow-tank test is conducted on a bare hull model at the model design
speed in calm water. Determine the effective horsepower (hp) for the ship,
including appendage and air resistances. The following parameters apply to the
ship and model:
Ship
1,100
Model
Length (ft)
Hull Wetted Surface Area (ft2)
Speed (knots)
30
250,000
15
Freshwater
Water
Seawater 50°F
70°F
Projected Transverse Area (ft²)
Cair
7,500
0.875
Appendage Resistance (% of bare hull)
10%
Hull Resistance (Ibf)
20
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Question 2
You are a biomedical engineer working for a small orthopaedic firm that fabricates rectangular shaped fracture
fixation plates from titanium alloy (model = "Ti Fix-It") materials. A recent clinical report documents some problems with the plates
implanted into fractured limbs. Specifically, some plates have become permanently bent while patients are in rehab and doing partial
weight bearing activities.
Your boss asks you to review the technical report that was generated by the previous test engineer (whose job you now have!) and used to
verify the design. The brief report states the following... "Ti Fix-It plates were manufactured from Ti-6Al-4V (grade 5) and machined into
solid 150 mm long beams with a 4 mm thick and 15 mm wide cross section. Each Ti Fix-It plate was loaded in equilibrium in a 4-point bending
test (set-up configuration is provided in drawing below), with an applied load of 1000N. The maximum stress in this set-up was less than the
yield stress for the…
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Two sport utility vehicles (SUVs) are being considered by a recent engineering graduate. Using the following data evaluate which sport utility vehicle is better. Use six attributes in your a
point, overall appearance, comfort, safety, reliability, and fuel mileage. Larger scores on overall appearance, comfort, safety, reliability, and fuel mileage are preferred to smaller ones.
Click the icon to view the table with data you have gathered about the SUVs.
Determine attribute weights and use the nondimensional scaling technique to find the resulting set of vehicle scores. Fill in the table below. (Round to two decimal places.)
More Info
Attribute
Price
Appearance
Comfort
Safety
Reliability
Fuel mileage
Relative
Rank
4
253 6
1
Print
Final score
Alternatives
SUV 1
$27,650
4
3
3
3
22 mpg
SUV 1
Done
Alternatives
SUV 2
$21,900
3
5
4
4
18 mpg
SUV 2
-
X
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Four months into a six month deployment, you are a solo pilot returning to home base after an uneventful overwatch mission to a non-disclosed desert
location. Your mission was extended 90 minutes requiring at least one additional aerial refuel. The moon has now set. A shift in prevailing winds causes an
infrequently used runway to be active. You are less familiar with the approach to this runway and have only used it during VFR conditions. The instrument
approach plate reveals you will fly a prolonged DME arc taking you out over the unlit desert away from the dimly lit base.
While flying the above instrument approach, you take another look at the approach plate. When you look up again the airfield lights are visible through the
upper portion of your canopy. You did not sense any change in your aircraft attitude. Which of the following best describes what happened while you looked
at the approach plate?
OA. The black hole effect has amplified the normal reflection of the airfield lights…
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TRUE OR FALSE Directions: Choose true is the statement is correct, otherwise choose false. 1. Literature is not related to a certain region’s culture, tradition, history and people.
2. All written, oral, and multimedia forms of work are considered literature.
3. Poetry commonly utilizes rhymes and figures of speech while prose uses formal sentence structures.
4. Drama is delivered on a theatrical stage with actors and actresses.
5. Fictional works have the same elements of non-fictional works.
6. Facts, information, and statistics are focused on non-fictional works.
7. Human history and advancements were possible without the role literature.
8. The standard of universality conveys that literature must be perpetual and timely. It is forever relevant and it appeals to one and all, anytime, and anywhere.
9. Intellectual beauty expresses that a literary piece must stimulate thought about life and human nature, while suggestiveness pertains to how it evokes emotion of the reader.
10. All…
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I need answers for problems 13, 14, and 15 pertaining to the print provided.
NOTE: If you refuse to answers all 3 parts and insist on wasting my question by breaking down 1 simple question into 3 parts, then just leave it for someone else to answer. Thank you.
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- Please give me the answers for this i been looking at this for a hour and my head hurtsarrow_forwardAccess Pearson Mastering Engineering Back to my courses Course Home Course Home Scoresarrow_forwardest 2 (copy) (page 4 of 9) A wiseup.wsu.acza/mod/quiz/attempt.php7attempt=610918cmid 148960&page=3 ops O YouTube M Gmail Maps O GENERAL MATHEM. O New Tab :WSU WiSeUp 1 MONLO GOA ashboard / My courses / FLM15B2_KF_WS6222 2021 / Tests / Test 2 (copy) uestion 4 Quz navigation Gate AB in Figure below is 1.0 m long and 0.9 wide. Calculate force F on the gate and position X of its centre of Not yet answered pressure. Marked out of Finish attempt 10,000 Rag question 3m Oil, s.g.=Q81 7m 1.0m B 50 Answerarrow_forward
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