Diagnosing and Repairing Light Vehicle Drive Shafts Assessment

AURLTQ012 Diagnose and repair light vehicle drive shafts Assessment 1 – Questioning – Written Assessment Student Name Anas ijaz Student ID Number 20220490 Unit Start Date 02/04/2023 Unit End Date 31/04/2023 Assessment Due Date 27/04/2023 Date Submitted 26/04/2023 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 ANAS Ijaz Date : 26 / 04 / 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 Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 1 of 24

AURLTQ012 Diagnose and repair light vehicle drive shafts 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: anas ijaz Assessor’s Name: Student Signature anas ijaz Date 26/04/2023 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 drive shafts. The topics that will be covered in the assessment are: 1 Diagnose light vehicle drive shafts 2 Repair and test light vehicle drive shafts 3 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 52 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 To receive a ‘satisfactory’ outcome for this assessment students MUST successfully answer all questions. If a student achieves less than 100%, they can reattempt the assessment after further study has taken place. Students who cannot achieve a minimum of 100% you will not have satisfactorily completed this assessment Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 2 of 24

AURLTQ012 Diagnose and repair light vehicle drive shafts Your assessor will be looking for the following in this assessment task: - • Key policies and procedures relating to the diagnosis, testing and repair of light vehicle drive shafts, including: o How to locate and identify manufacturers specifications or equivalent documentation and workplace procedures for the diagnosis and repair of light vehicle drive shafts o The following workplace health and safety requirements for diagnosis and repair of light vehicle drive shafts: – Safety procedures for working with hazardous oils • The following environmental requirements for diagnosis and repair of light vehicle drive shafts: o Procedures for trapping, storing and disposing of oils released from drive shafts • The following diagnostic testing procedures for light vehicle drive shafts: o Road testing that include drive shaft noise and vibration • The following repair procedures for light vehicle drive shafts: o Dismantling drive shafts o Inspecting drive shafts o Reassembling and aligning components • Post-repair testing procedures for light vehicle drive shafts • Workplace housekeeping procedures • Light vehicle drive shafts and associated components information, including: o The operating principles of: – Torque reaction of rear axle housings – Torque steer o The purpose and operation of the following propeller shafts: – Single and multi-piece shafts – Universal joints – Cross and yoke joints – Double cardan joints – Lobro joints – Velocity fluctuation of universal joints – Shaft alignment o The purpose and operation of the following constant velocity joints: - Tripod joints. Assessment conditions The assessment MUST : • Include access to: o An automotive repair workplace or simulated workplace that reflects workplace conditions - where simulation is used, it MUST reflect real working conditions by modelling industry operating conditions and contingencies, as well as, using suitable facilities, equipment and resources o Repair orders and workplace instructions relating to diagnose and repair activity o Workplace procedures relating to diagnose and repair activity o Manufacturer light vehicle drive shaft specifications and procedures or Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 3 of 24

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Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 4 of 24 AURLTQ012 Diagnose and repair light vehicle drive shafts equivalent documentation to complete diagnose and repair activity o Light vehicle with front engine and rear wheel drive o Light vehicle with front wheel drive constant velocity joint drive shaft o Diagnostic equipment for light vehicle drive shafts o Tools, equipment and materials required for repair of light vehicle drive shafts • Be demonstrated in the workplace or in a simulated environment that reflects workplace conditions • Be conducted in a safe environment • Automotive repair workplace or simulated workplace • Be assessed in compliance with relevant policies, procedures, processes and operational manuals directly related to the industry sector for which it is being assessed • Confirm consistent performance can be applied in a range of relevant workplace circumstances. Assessor Requirements Assessors of this unit MUST : • Satisfy the assessor requirements in applicable vocational education and training legislation, frameworks and/or standards. Resources required Learning Resources available to students include: • Automotive Technology (A System Approach) 6 th Edition – Chapters 5, 6, 7, & 40 • 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 – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 5 of 24 AURLTQ012 Diagnose and repair light vehicle drive shafts Assessment 1 – Questioning Written Assessment 1. Identify five (5) important items of personal safety when working on drive shafts in an automotive workplace? 1 Wearing helmet important to protect oneself from head injuries 2 Wearing safety eyewear is needed to protect from eye injuries 3 Correct clothing must be worn 4 Gloves should be worn 5 Hearing should be protect with ear equipment 2. What are the precautions that you should be aware of when handling final drive oil? It is important to wear gloves and safety shoes to ensure safety. It is significant not to strike or drop the Linear Bushing as it can result in damage or injury. 3. How should waste final drive oils be stored and disposed? The waste oil should be collected in a secure drum with clear labelled. If the oil is stored in a double-skinned tank then bunding is not needed. If disposing the product should be properly disposed as industrial waste such as dumping in landfills, incineration or dust suppression (Sikdar, Siddaiah and Menezes, 2020). Multiple choice. Circle the correct answer 4. When removing the drive shafts, what should you use to catch the waste final drive oil? A. Drain pan. B. Mop bucket. C. Storm water drain. D. Funnel.

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 6 of 24 5. When handling, trapping, storing and disposing of new or waste final drive oils, which document should you use to find this information? It is essential to use the workshop manual True or False question 6. Torque reaction is when the axle housing tries to rotate in a direction opposite to wheel rotation ☒ True or ☐ False 7. What is torque steer? Torque steer is when the power is applied in an uneven manner to the drive wheel (Dornhege, Nolden and Mayer, 2017). 8. Name the eight [8] components of a drive shaft below.

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AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 7 of 24 1 Slip Yoke 2 External 3 Spider 4 Bearing 5 Internal 6 Drive shaft 7 Flange 8 Universal Joint Multiple choice. Circle the correct answer 9. Drive shafts are made of . A. Seamless steel tubing. B. Reinforced fiberglass. C. Aluminium. D. All answers are correct. 10. What is a slip yoke? A slip yoke is a crucial component of a drive shaft assembly as it helps the PTOs and drive shafts to slip or flex with their given application. It assists in the rotation of U-joints (Sakai, Yoshidaand Tajima, 2018). Fill in the Gaps 11. Complete the following statement about propeller shafts using the following words. Words: Compress, Differential, Drive, Engine, Length, Power, Transmission, Torque, U-joints

1 Bearing cups 2 Seal 3 Bearing 4 Trunnion 5 Grease Fitting AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 8 of 24 A drive shaft must smoothly transfer torque while rotating, changing length, and moving up and down. The different designs of drive shafts all attempt to ensure a vibration-free transfer of the engine’s power from the transmission to the differential. This goal is complicated by the fact that the differential and transmission are bolted solidly to the frame of the car, whereas the engine is mounted on springs. As the rear wheels go over bumps in the road or changes in the road’s surface, the springs compress or expand, changing the angle of the drive shaft between the transmission and the differential, as well as the distance between the two. To allow for these changes, the Hotchkiss-type drive shaft is fitted with one or more U-joint to permit variations in the angle of the drive, and a slip joint that permits the effective length of the drive shaft to change. True or False question 12. Two-piece drive shafts have a drive shaft support bearing called a centre bearing. ☒ True or ☐ False 13. Name the five [5] components of a universal joint below. True or False question 14. U-joints rotate at a constant velocity and are vibration free. ☐ True or ☒ False

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 9 of 24 Multiple choice. Circle the correct answer 15. The bearing cups of a conventional U-joint are retained by . A. A snap ring that fits into a groove machined in the outer end of the yoke. B. An external snap ring that fits into a groove machined in the bearing cup on the end closest to the grease seal. C. Nylon injected into machined grooves in the yoke and cup. D. All answers are correct. True or False question 16. A universal joint is a flexible coupling located at each end of the drive shaft between the slip yoke and the pinion flange on the drive axle assembly. ☐ True or ☒ False True or False question 17. The U-joint is basically a double-hinged joint consisting of two Y-shaped yokes, one on the driving or input shaft and the other on the driven or output shaft, plus a cross-shaped unit called the cross. ☒ True or ☐ False 18. Name the three (3) common designs of U-joints: 1 Cardan Joint 2 Spicer Joint 3 Bendix-Weiss Fill in the Gaps 19. Complete the following statement about Löbro constant-velocity joint using the following words.

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2 Boot Band 3 Rubber packaging 4 Boot 5 Washer 6 Balls 8 Companion flange 9 Outer race 10 Inclined ball 11 Inner Race 12 Cage AURLTQ012 Diagnose and repair light vehicle drive shafts Words: Cage, Centre, Changes, Drive, Flange, Inner, Joint, Race, Propeller A Löbro constant velocity joint , has an outer race, an inner race and a cage with steel balls. The outer race is bolted to the flange of the front propeller shaft, and the inner race is splined to the front end of the rear drive shaft. The joint is enclosed by a dust shield and boot. The front shaft is supported by a _ centre bearing. This type of joint is designed to allow changes in propeller shaft angle and also changes in propeller shaft length. Both the inner race and the outer race have angular grooves for the balls. The balls transfer propeller from one race to the other but, at the same time, the inner race is able to move in or out in the grooves or change its angle. 20. Name the twelve [12] components of a Löbro constant-velocity joint below. 1 Tulip 7 Snap ring Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 10 of 24

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 11 of 24

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 12 of 24 True or False question 21. U-joint operating angle is determined by taking the difference between the transmission installation angle and the drive shaft installation angle. ☐ True or ☒ False 22. What does the term “constant velocity” mean? Constant velocity is the term used when an object in motion is moving in a straight line at a constant speed. This velocity can be either positive or negative and is usually indicated by the sign of the slope (Schöller et al ., 2020). This helps in analysing the direction in which the object is moving. For example, a bus traveling at a constant speed without changing its direction. True or False question 23. In a two-piece driveshaft, when the yokes are in the same plane, the joints are said to be in phase. ☐ True or ☒ False 24. What is meant by U-joint phasing? Phasing is the process that helps in aligning the universal joint yokes on both ends of a drive shaft in a parallel manner (Liu et al ., 2020). If these joints are note phased in a proper manner then they will start operating at different speed throughout each revolution which might result in second order vibration.

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AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 13 of 24

1 Boots 2 CV joint 3 Stub Axle 4 Drive Axle 5 Inboard CV joint AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 14 of 24 25. Examine the illustration below and note that the operating angle at the front of the drive shaft is offset by the one at the rear of the drive shaft. Why? The angle of the front drive shaft is offsetting the angle of the rear drive shaft because if the u-joint accelerates making a vibration the rear universal joint is decelerates which results in vibration 26. Name the five [5] external components of the drive axle below. True or False question

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 15 of 24 27. Both CV joints on a half shaft used in an RWD vehicle with independent rear suspension may be of the plunging style. ☐ True or ☒ False True or False question 28. Constant velocity joints are used to transfer uniform torque at a constant speed, while operating through a wide range of angles. ☒ True or ☐ False True or False question 29. Plunge-type CV joints allow the length of the axle assembly to change as the wheel travels up and down. ☒ True or ☐ False Multiple choice. Circle the correct answer 30. The CV joints nearest the transaxle are called the inner joints. A. Inner. B. Inboard. C. Outboard. D. Both “inner” and “inboard”. Multiple choice. Circle the correct answer 31. CV joints provide . A. Uniform torque transfer. B. Constant speed. C. Operation through a wide range of angles. D. All answers are correct.

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1 Boot retaining clamp 2 Boot 3 Outer bearing race 4 Housing 5 Outboard CV joint 6 Spacer Ring 7 Driver shaft 8 Lock Ring 9 Bushing 10 Spider 11 Retaining ring AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 16 of 24 32. Name the eleven [11] components of the tripod plunge-type joint below. 33. Identify three (3) symptoms of a failed U-joint. 1. squeaking or weird noise when starting to move in a forward direction 2. vibration felt in the entire vehicle when moving forward in speed 3. leakage of transmission fluid from the rear of transmission True or False question 34. An inclinometer is used to check the operating angle of the drive shaft. ☐ True or ☒ False Multiple choice. Circle the correct answer

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 17 of 24 35. If a noise is heard while driving straight ahead but it ceases on turns in the same direction, what is the most likely cause? A. A bad wheel bearing. B. A worn inner cv joint. C. A worn outer cv joint. D. A bad intermediate shaft bearing. Multiple choice. Circle the correct answer 36. A shudder or vibration only when accelerating is most likely caused by . A. Out-of-balance axle shaft. B. Excessive play in the inboard plunge joint. C. Both “out-of-balance axle shaft” and “excessive play in the inboard plunge joint”. D. Neither “out-of-balance axle shaft” nor “excessive play in the inboard plunge joint”. Multiple choice. Circle the correct answer 37. A humming or growling noise in the front of the vehicle that changes with road speed could be caused by . A. Inadequate lubrication of the inner CV joint. B. Worn or damaged wheel bearings. C. A bad intermediate shaft bearing [equal length axle shaft system]. D. All answers are correct. True or False question 38. An FWD vehicle that makes a clunking noise when the automatic transmission is shifted into gear is being diagnosed. The problem could be excessive play in an inner or outer CV joint. ☒ True or ☐ False Multiple choice. Circle the correct answer 39. A popping or clicking noise when turning indicates a possible worn outer_ CV joint. A. Outer. B. Inner.

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 18 of 24 C. Both “inner” and “outer”. D. Neither “inner” nor “outer”. Fill in the Gaps 40. Complete the following statement about CV joint inspection using the following words. Words: Boot, Condition, Deformed, Escapes, Heat, Normal, Rubbing Begin CV joint inspection by checking the condition of the boots. Splits, cracks, tears, punctures, or thin spots caused by rubbing call for immediate boot replacement. If the boot appears rotted, this indicates improper greasing or excessive heat , and it should be replaced. Squeeze all boots. If any air _ escapes , replace the boot. If the inner boot appears to be collapsed or deformed , venting it (allowing air to enter) might solve the problem. Place a round- tipped rod between the boot and drive shaft. This equalizes the outside and inside air and allows the boot to return to its normal shape. 41. From the list below of FWD drive shaft customer concerns, list the possible causes and corrective remedy. Customer Concern Possible Cause Corrective Remedy Vibration throughout vehicle Defective tire, a worn driveline U- joint, Changing tires, replacing the U-joint Vibration throughout vehicle at low speed Misshapen tyre Separation of Internal belts and tread from the body of the tyre Changing the overall body of the tyre is needed. Vibrations during acceleration Due to play in the outboard or inboard joints. It can also be due to a worn in the inboard plunge joint. It can also be caused due to a bad intermediate shaft bearing on the transaxles. It can be caused by a broken engine mounts. Replacing broken motor mount Ensuing that all the equipment’s are well maintained. Changing the inboard plunge joint. Grease dipping on the ground or spraying on chassis parts Gravity is analysed to work on a stationary grease in order to draw oil to a low point. It is noted that if the low point is not sealed properly oil can leak away from the grease tube It is essential that the new grease tubes or cartridges should be stored in an upright position with a plastic cap at all times. If the cartridge is left within a grease gun it is vital to depressurize the gun and stored in a horizontal position

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Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 19 of 24 AURLTQ012 Diagnose and repair light vehicle drive shafts Clicking or popping noise heard when turning curves and corners This can be caused due to a damaged or worn outer cv joint The CV shaft assembly needs to be replaced A clunk during accelerating, decelerating, or putting an automatic transaxle into drive This noise occurs because of excessive play of the inner joint in the FWD application, either outer or an inner joint in a RWD independent suspension. It can also happen due to excessive play of the driveshaft CV joint. After diagnosing the exact issue, the joint causing the problem will have to be replaced. A clunk noise when putting an automatic transmission into gear or when starting out from a stop Transmission and motor mounts provide a cushioned point of contact between the vehicles frame (Galvagno et al., 2019). As the age of the vehicle increases, the cushions often shrink becoming brittle, falling out of place and may even split. All the mentioned conditions can cause clunking noise It is vital that the motor mounts should be repaired and maintained in order to enhance their performance. A shudder or vibration when accelerating This can happen by excessive play in the outboard or inboard joints, but the most prominent cause is a worn out inboard plunge joint. The inboard and outboard joints should be replaced. A cyclic vibration that comes and goes between 45 and 60mph (72 and 100 km/h) The most common cause of this type of vibration is due to worn out tyres. If the tyres of the car is out of balance then the steering wheels might shake. The tyres of the car should be replaced True or False question 42. A vibration that occurs during all modes of driving, especially at 56 – 72 kph (35 – 45 mph), is most often caused by a faulty universal joint, a bent drive pinion shaft, or a damaged pinion flange. All of these will cause the drive shaft to have excessive runout. ☐ True or ☒ False Fill in the Gaps 43. Complete the following statement about removing and replacing a CV joint using the following words. Words: Axle, Brake, Circlip, Control, Damaging, Discarding, Grease, Ground, Hammer, Inboard, Inspect, Joint, Location, Needs, Pressure, Position, Raising, Reinstall, Removal, Separate, Slide, Steering, Wheel

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 20 of 24 1 Removing the axle from the car begins with the removal of the wheel cover and wheel hub cover. The hub nut should be loosened before raising the car and removing the wheel. 2 After the car is raised and the wheel is removed, the hub nut can be unscrewed from the axle shaft. 3 The brake line holding clamp must be loosened from the suspension. 4 The ball joint must be separated from the steering knuckle assembly. To do this, first remove the ball joint retaining bolt. Then pry down on the control arm until the ball joint is free. 5 The inboard joint can be pulled free from the transaxle. 6 A special tool is normally needed to separate the axle shaft from the hub allowing the axle to be removed from the car. Never hit the end of the axle with a hammer . 7 The axle shaft should be mounted in a soft-jawed vise for work on the joint . Pieces of wood on either side of the axle work well to secure the axle without damaging it. 8 Begin boot removal by cutting and discarding the boot clamps 9 Scribe a mark around the axle to indicate the boots position on the shaft. Then move the boot off the joint 10 Remove the circlip and separate the joint from the shaft. 11 side the old boot off the shaft 12 Clean and inspect the joint, then wipe the axle shaft clean and install the new boot onto the shaft. 13 Place the boot into its proper location on the shaft and install a new clamp. 14 Using a new circlip, reinstall the joint on the shaft. Pack joint grease into the joint and boot. The entire packet of grease that comes with a new boot needs to be forced into the boot and joint. 15 Pull the boot over the joint and into its proper position . Use a dull screwdriver to lift an edge of the boot up to equalize the pressure inside the boot with the outside air. 16 Install the new large boot clamp and reinstall the axle into the car. Torque the hub nut after the wheels have been reinstalled and the car is sitting on the ground . Always follow the correct procedure for the clamp being installed.

AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 21 of 24 Fill in the Gaps 44. Complete the following statement about removing and replacing a U- joint using the following words. Words: Assembly, Bearing, Brass, Carefully, Correct, Drive, Ear, Index, Joint, Large, Position, Press, Push, Retaining, Rings, Shaft, Socket, Spider, Start, Trunnion, Yoke, 1 Clamp the slip yoke in a vise and support the outer end of the drive shaft. 2 Remove the lock rings on the tops of the bearing cups. Make joint marks in the yoke so that the joint can be assembled with the correct phasing. 3 Select a socket that has an inside diameter large enough for the bearing cup to fit into; usually a 1¼-inch socket works. 4 Select a second socket that can slide into the shaft’s bearing cup bore – usually a 9/16- inch socket. 5 Place the large socket against one vise jaw. Position the bearing shaft yoke so that the socket is around a bearing cup. 6 Position the other socket to the center of the brass cup opposite to the one in line with the large socket. 7 Carefully tighten the vise to push the bearing cup out of the yoke and into the large socket. 8 Separate the joint by turning the trunnion over in the vise and driving the cross and remaining bearing cup down through the yoke with a assembly drift and hammer. 9 Use a drift and hammer to drive the shaft out of the other yokes. 10 Clean any dirt from the yoke and the index ring grooves. 11 carefully remove the bearing cups from the new U-joint. 12 Place the new _ ear inside the yoke and push it to one side. 13 Start one cup into the yoke’s ear and over the cross’s drive . 14 Carefully place the spider in a vise or U-joint bearing press and press the cup partially through the ear. 15 Remove the shaft from the vise and press the cross toward the other side of the yoke. 16 push a cup into the yoke’s ear and over the trunnion. 17 Place the shaft in the vise and tighten the jaws to press the bearing cup into the retaining and over the trunnion. Then install the snap ring . Make sure they are seated in their grooves.

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AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 22 of 24 18 position the joint’s cross in the drive shaft yoke and install the two remaining bearing cups. Multiple choice. Circle the correct answer 45. Before servicing the rear U-joint, slip joint, or centre bearing on a two-piece drive shaft, . A. Make index marks on both ends of the driveshaft. B. Measure the pinion shaft angle. C. Measure the distance between the centre bearing and slip joint. D. All answers are correct. 46. What parts are included in a typical CV joint service kit? Axle shaft, inner boot, outer boot, clamp, cv joint True or False question 47. You should use an impact wrench to tighten axle hub nuts. ☒ True or ☐ False True or False question 48. Stake the axle hub nuts after they are tightened to lock them in place. ☐ True or ☒ False Multiple choice. Circle the correct answer 49. CV joints are lubricated with . A. GL1 chassis grease. B. iSilicone polymer-based grease. C. White lithium grease. D. Special high-temperature, high-pressure grease made specifically for CV joints.

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AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 23 of 24 50. Consider the various post repair checks that you would make during a road test on the vehicle drive shafts? It is important to identify the sounds that it is making during the right as well as left turning Multiple choice. Circle the correct answer 51. Which source of information will give you the most detail about diagnosing and repairing light vehicle drive shafts on the vehicle you are working on? A. Workshop manual. B. Owner’s manual. C. Google. D. Textbooks. 52. Why is it very important that the Job Card is completed correctly? A job card helps in encompassing the details of a work that is required to be performed. Jo cards are used to understand the task therefore; job card application is used for creating and managing job cards (Lichter and Schiprowski, 2021). The planning and scheduling information are required while creating the job card which are later used by the work order and task cards tracking applications.

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AURLTQ012 Diagnose and repair light vehicle drive shafts Document Name: Student Written Knowledge Assessment – AURLTQ012 Created Date: 12 th Aug 2020 Document No: Trinity Institute (Australia) – AURLTQ012 Version No: 1.0 Last Modified Date: ©Trinity Institute (Australia) | RTO Code: 41310 | CRICOS Code: 03556F Page Sequence: Page 24 of 24 Liu, Y., Li, M., Haupt, R.L. and Guo, Y.J., 2020. Synthesizing shaped power patterns for linear and planar antenna arrays including mutual coupling by refined joint rotation/phase optimization. IEEE Transactions on Antennas and Propagation, 68(6), pp.4648-4657. Sakai, R., Yoshida, Y. and Tajima, K., 2018. Study on Analysis of Torque-Slip Characteristics of Axial Gap Induction Motor. Transaction of the Magnetics Society of Japan Special Issues, 2(1), pp.43-47. Schöller, C., Aravantinos, V., Lay, F. and Knoll, A., 2020. What the constant velocity model can teach us about pedestrian motion prediction. IEEE Robotics and Automation Letters, 5(2), pp.1696-1703. Sikdar, S., Siddaiah, A. and Menezes, P.L., 2020. Conversion of waste plastic to oils for tribological applications. Lubricants, 8(8), p.78.

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AURLTQ012 WRITTERN ASSESSMENT ANAS IJAZ 20220490

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