abpl30055-2019-practical-exam
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University of Melbourne *
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May 31, 2024
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ABPL30055 2019 - Practical Exam
Construction Management (University of Melbourne)
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ABPL30055 2019 - Practical Exam
Construction Management (University of Melbourne)
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Studocu is not sponsored or endorsed by any college or university
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Examination paper ABPL30055
Seat Number: Student ID
: Do NOT write your name anywhere on your examination paper THE UNIVERSITY OF MELBOURNE ARCHITECTURE BUILDING AND PLANNING SUBJECT NAME: CONSTRUCTION MANAGEMENT - 2019 SUBJECT CODE: ABPL30055 EXAM DURATION: 3 HOURS READING TIME: 15 MINUTES TOTAL MARKS: 100 NUMBER OF PAGES: 11 PAGES (INCLUDING THIS PAGE), PLUS 2 TEMPLATE PAGES AUTHORISED MATERIALS
1.
All calculators may be used. 2.
Students ARE permitted to use a foreign language dictionary (FLD) 3.
Students ARE permitted to use an English dictionary 4.
Electronic devices including lap tops, tablets and electronic dictionaries are NOT authorised. INSTRUCTIONS TO INVIGILATORS
1.
This is a WHITE paper. 2.
Students will require this paper and TWO (2) script books. 3.
Students may annotate this paper, but not their script book/s during reading time. 4.
At the end of this exam the paper MUST be COLLECTED by Supervisors. The question paper MUST NOT LEAVE the room. 5.
Dictionary must be unmarked, in hard copy (printed) and checked during reading time. INSTRUCTIONS TO STUDENTS
1.
This Exam is NOT an open book exam. NO notes or books are permitted. 2.
Write your seat number and student ID number in the boxes at the top of this page at the START of WRITING TIME. 3.
Do NOT detach any pages from the question paper, nor the script book. 4.
During reading time, students may underline, highlight, and write on this question paper but not in the script book. 5.
Write your answers on the RULED PAGES of your script book/s ONLY. Blank pages are for rough working out and will not be marked. 6.
This examination paper is NOT to be removed from the examination venue. 7.
This examination is worth 60 percent of your total marks for this subject. 8.
Answer EACH QUESTION on a NEW PAGE in your script book. Write the QUESTION NUMBER ANSWERED at the TOP OF THE SCRIPT BOOK PAGE in the space allocated. Write the QUESTION NUMBER ANSWERED in the space allocated in the FRONT PAGE of the script book. EXAMINATION REPRINTS
1.
This paper MAY BE LODGED with the library. Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 2 EXAMINATION INSTRUCTIONS You are reminded that: •
you may not leave in the first half hour or the last fifteen minutes of any University of Melbourne examination; •
you must not communicate with, receive assistance from, or copy from the paper of another student, at any time during your exam; •
you must obey the reasonable instructions of the examination supervisors; •
you must not have any unauthorised materials or items with you that could be used to cheat, be unscholarly and/or gain an unfair advantage over other students; •
unauthorised item/s must be declared and wherever possible surrendered to a supervisor. Failure to follow to this instruction constitutes academic misconduct; •
penalties apply for misconduct; •
if you do not have photo ID with you, you will need to report to the Chief Supervisor at the end of the exam and have your photo taken. Before your exam •
Please place your student card on top left hand corner of your desk. •
Empty your pockets and place items under your desk or in the bin. •
Please read and review your question paper during reading time. Unless you are permitted to annotate your paper, you must not write during reading time. •
If you need assistance from a supervisor, including materials or a toilet break, raise your hand. Wait until the supervisor attends to you. Do not leave your seat without permission. •
Wireless communications, mobile phones and any device other than an authorised device must be switched off and placed under your desk. •
If you do not have your student card, please place another form of photo identification such as your passport or driver’s licence, in the top left hand corner of the desk, instead. During your exam •
Supervisors will inspect desks and materials you access during the examination. Unauthorised material will be confiscated. •
Any student found cheating; suspected of cheating; who attempts to cheat and/or enables others to cheat in an exam is engaging in academic misconduct. •
Students found to have engaged in general or academic misconduct face penalties ranging from exclusion from the University; to a fine; a failure in examination and/or the termination of their enrolment. •
A supervisor will submit a report in writing about incidents of misconduct to the University. In an Emergency •
In the event of fire, or an emergency evacuation, leave all examination material where it is. Make your way to the nearest exit. Assemble away from the building, in line of sight of a fire warden who will be wearing a hard hat. Await further instructions. Signals and Warnings at the end of your exam •
A warning signal will be given ten minutes ahead the end of your examination. After the signal, you are not permitted to leave the venue and must wait until dismissed. •
At examination’s end
a final signal will be given. The Chief Supervisor will order ‘pens down’. You must cease writing when ordered to do so. •
Place your papers inside the question paper. Remain seated. Do not move from your seat until the Chief Supervisor announces that students are dismissed from the room. •
Do NOT switch on your mobile phone or use any other device until you are outside the venue. Photography is not permitted within the examination venue. Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 3 ABPL30055 CONSTRUCTION MANAGEMENT EXAMINATION 2019 SUBMISSION INSTRUCTIONS During reading time you may annotate on this question paper, but not in the script book. Read all the parts of each question before answering the question. Answer all questions in the examination script book provided. However, questions 3 (multiple activity chart) and 6 (network diagram) must be done on the templates provided and inserted into the script book. Answer each question on a new page and write the question number at the top of the page. Write the question numbers answered on the front page of the script book in the spaces provided. Use full sentences to answer questions unless noted otherwise. Diagrams, graphs, and sketches can be used where appropriate. There are 10 questions which total 100 marks. PLEASE TURN OVER FOR QUESTIONS
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ABPL30055 EXAMINATION 2019 4 ABPL30055 CONSTRUCTION MANAGEMENT EXAMINATION 2019 TOTAL 100 MARKS Question 1 (14 marks) (a)
One key issue in construction projects is that the phases of a project (define, develop, construct, close, operate) are often considered in isolation. (1)
Explain, in principle, why the phases need to be integrated as much as practical and possible. (2 marks) (2)
Describe one practical example of this integration in a construction project. (2 marks) (b)
Two functions of management are monitoring
and controlling
. State the meaning of these two functions. (2 marks) (c)
Explain the purpose of a union in the construction sector, and two possible benefits to a worker in belonging to a union. (3 marks) (d)
Working with people is important in construction. Starting at the most fundamental level and going to the highest level, state each level of Maslow’s model of hierarchical needs and state a practical example at each level of how a manager may use the model for their workers on a busy construction site. (5 marks) Question 2 (16 marks) The Victorian School Buildings Authority (VSBA) is a state government department responsible for public schools. In 2019 calendar year VSBA is planning to spend $800M on schools throughout Victoria for the following works: •
Construction of 8 new schools, each at an average cost of $60M •
Refurbishment of 40 existing schools, each at an average cost of $8M (a)
Discuss how the following two strategic considerations are necessary for the optimum delivery of the total work package of $800M. Do not discuss specific procurement models. (1)
Locations of the schools (2)
Scope of works for each of the schools (4 marks) (b)
Explain with the aid of diagrams, why in general, a managing contractor in a management contracting (MC) procurement model carries more risk than a construction manager in a construction management (CM) model. (4 marks) (Continued next page) Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 5 (c)
The scope of works for one particular rural school requiring refurbishment includes the following: •
Refurbishment of delaminated concrete (exact scope can only be finalised after commencing work). •
New fit out of several class rooms. •
Extension to an existing gymnasium for new change rooms. •
Upgrades to three chemistry laboratories, which include retaining some facilities and replacing other facilities with new. •
Early works - road widening and refurbishment of several badly deteriorated roads. This will also help with traffic access for the project overall. The school will need to be operational while some of these works are occurring. Discuss, with specific reasons, why a MC procurement model could be the most appropriate model for this project. (5 marks) (d)
Tender negotiations are currently being held with a favourable tenderer and the client (VSBA) for construction of one of the new schools. The tenderer has requested that after signing a contract, they require a $3M upfront full payment from the client for supply of a long lead item, before they place an Order on that item to the supplier. The client believes that this is too much financial exposure and risk to the client, and demanded that no payment can be made until after delivery and quality control check of the item on site. Discuss a negotiated solution to this problem including necessary controls to put in place to ensure the negotiated position works. (3 marks) Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 6 Question 3 (9 marks) (a)
In the construction context, explain the difference between production and productivity. (2 marks) (b)
A mobile crane is engaged in lifting purlins to the top level of a low rise and large area steel framed building. The ground crew
(two operatives) load a mobile crane at ground level and the
crane
lifts the purlins to roof level, and the roof crew
(two operatives) unload and place the purlins at designated locations at the roof level. The operation has been measured in a work study exercise and the information is shown in Table 1 below. Table 1 - Roof Purlins Installation Task Standard Time (minutes) A. Ground crew pick up 3 purlins in storage area, do a visual defect check, and carry purlins to the crane at ground level. 3.0 B. Ground crew place sling around 3 purlins and attach crane hook, and make necessary checks. 1.0 C. Ground crew walk back to purlin storage area. 1.5 D. Crane lifts purlins to roof level. 1.5 E. Roof crew receive and release purlins from crane hook. 1.0 F. Crane hook is lowered to ground level. 1.0 G. Roof crew carry and place purlins at designated locations. 1.5 H. Roof crew walk back to purlin receiving location. 0.5 On the template provided, draw a multiple activity chart to represent the operation for all the crews, till the end of 15 minutes. Show and state the cycle time for the operation. Note - for clarity, state the designations and the tasks on relevant chart location, for example A1 could be pick up & carry purlins
. Show also start up effects and idle times. (7 marks) Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 7 Question 4 (7 marks) (a)
In a work measurement exercise for an operation, six times have been observed on six different days. To calculate a basic time for the operation, the observer planned to average the six observed times. Explain why this may not be an accurate calculation of the basic time. (2 marks) (b)
A joinery subcontractor has won a contract on a large apartment block. Part of this subcontract involves the installation of 172 single internal doors, 34 double internal doors, 56 external doors, and 36 external sliding doors. From previous projects, the basic time for these tasks should be as follows. These times are also used to calculate estimated costs. •
Single internal door (SID) - 1.6 hrs •
Double internal door (DID) - 3.2 hrs •
External door (ED) - 1.8 hrs •
External sliding door (ESD) - 3.6 hrs Note the following: •
Each door will be done by two joiners. •
Relaxation allowances plus contingencies are 25%. •
Hourly rate for each joiner is $46.50/hr. •
Assume an 8 hour day . •
Doors can be installed in any sequence. •
All calculations to be to maximum of one decimal place accuracy. After 6 days, 27 single internal doors, 8 double internal doors, 4 external doors and 5 external sliding doors have been installed. If this productivity rate is continued till the installations are completed how much money will the subcontractor gain or lose? (5 marks) Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 8 Question 5 (11 marks) (a)
In a tender process, a main contractor is interested in engaging with a subcontractor whom they have never worked with. They will use the following two criteria to evaluate and choose the subcontractor: (i)
Management capability and how they work as a team. (ii)
Technical capability of their team. Explain how they could check and evaluate each of these criteria to possibly choose them as a subcontractor for the project. (4 marks) (b)
Swanston Central, located in Swanston Street in Melbourne, is a current residential tower project consisting of 1,000 apartments, being constructed by Multiplex. The construction period is 3.5 years. The project has an innovative and new ‘car stacker’ which is a
n automated steel structural system for parking cars. It is advantageous as it placed above ground on levels 2 to 6 (no need for underground carparks), and saves space as the cars are stacked. There will be 222 car stacker spaces built. Residents who own cars will drive down a ramp from the street adjacent the building, park their car on a bay, and the car is then transported by electro-
mechanical systems to a designated car space (refer Figure 1). Residents cannot access the car spaces, and if they wish to retrieve their car, their electronic key is scanned at the bay and the car will be returned to the bay in several minutes. (Continued next page) Figure 1 - Indication of Typical Car Stacker - Swanston Central Project Image: WOHR Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 9 Multiplex will prepare the concrete building structure for the steel electro-mechanical stacker to be installed. A German group (WOHR) will design the stacker in Germany, have it transported by ship progressively in components, and install the stacker with local Victorian labour and German supervisors. The stacker will take 24 months for the design and progressive delivery, and 18 months to install and commission on site. The car stacker has two key risks that are of significant concern to Multiplex: •
Technical risks (particularly design and operations aspects) •
Schedule risks You are a design manager working with Multiplex who will meet with WOHR in Germany for a kick off meeting to plan this component of the project carefully. Discuss the above risks and the planning needed to ensure this design and installation is successful. Be specific with your discussion to this project. (7 marks) Question 6 (10 marks) (a)
In a network diagram, during the backward pass calculation for a task which is linked to multiple tasks, the smallest calculated LFT must be used for that task.
Explain the meaning of this statement (you may use diagrams and / or a construction example to assist). (2 marks) (b)
Table 2 below shows a number of tasks, dependencies, durations, and dependency types for a small project. Note that some dependencies have lags. Table 2 - Project Task, Predecessors, Durations, Dependency Types (i)
On the template provided, draw the network diagram for the tasks showing the task, duration, and dependencies including lags. (4 marks) (ii) Use the network diagram developed in part (i) above to calculate and show the EST, EFT, LST, LFT, float, and draw the critical path. (4 marks) Task Predecessors Duration (weeks) Dependency Type and Lags A - 4 - B A 5 FS C B 6 SS (3) D B 7 FS E C 7 FS F E 5 FS G D 3 FS (5) H F 4 FS I E 22 SS (0) J G,H,I 3 FS (4), FS, FS Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 10 Question 7 (6 marks) (a)
Explain two ways quality management in construction can be significantly different to quality management in manufacturing. (2 marks) (b)
A 45 metre long and 600mm diameter concrete water pipe will be installed (in 6 metre pipe lengths) in a trench 2 metres deep, and connected to a water main at a large industrial site. The excavation has been made and the entire pipe has been installed, on a 100mm sand base, and is yet to be backfilled. As part of quality assurance, explain two key inspection and test items for the pipe that you would put forward in an Inspection and Test Plan (ITP) and how you would check them, to ensure quality requirements for this pipe have been met. (4 marks) Question 8 (10 marks) (a)
OHS compliance in Victoria is currently a three tier system of the Act, Regulations, and Compliance Codes. Do you think this three tier system can be consolidated into a two tier system and if so, how? If not, why not? (3 marks) (b)
Explain how the level of OHS risk in an operation can be categorised or quantified using a risk management matrix. (3 marks) (c)
OHS during erection of temporary works is crucial in a construction project as many incidents occur in these circumstances. Figure 2 below is a photograph of a temporary works system supporting a Bondek floor which has failed during a concrete pour. Explain two possible root causes for this failure. Be specific with your responses. (4 marks) Figure 2 - Failed Temporary Works Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION 2019 11 Question 9 (9 marks) (a)
A roofing sub-contractor purchased a 20 tonne mobile crane three years ago and wants to ensure that the crane has been financially viable on their projects. One possible metric to ensure plant ownership is viable, is checking whether the yearly revenue generated from having that plant is greater than its yearly running and operating costs (exclude initial purchase costs in this case). Assuming running and operational costs can be easily obtained, discuss how the subcontractor can approximately quantify how much yearly revenue the crane has generated, to see if it was a viable purchase. (4 marks) (b)
An established civil engineering contractor is planning to grow and invest in several dump trucks for hauling and dumping excavated material. They will be used on civil engineering projects including roads, dams, embankments, and large building excavations. The purchase prices of all the trucks are known. Three options are being considered for this purchase and shown in Table 3: Table 3 - Truck Purchase Options Option Manufacturer of dump truck Load carrying capacity Number to purchase 1 A 20 Tonne 6 2 B 30 Tonne 4 3 Combination of A and B Combination Combination Discuss operational aspects of the dump trucks together with a methodology that can be used to help determine which option to pursue. (5 marks) Question 10 (8 marks) A tier 1 contractor working on high rise buildings has recently completed a detailed audit on materials usage, on several large projects conducted in the past 3 years. The audit has shown that formwork and concrete have been over-ordered an average of 7%. This is because under-ordering can cause significant project costs and time delays. The over-orders, however, are impacting their profit margins in a competitive commercial environment, and also one of their new values is to lower their carbon footprint. The plan is to reduce over-orders for formwork and concrete to an average of 2% in the next 12 months. (a)
Discuss how you would evaluate whether the cost of over-ordering outweighs the cost of delays. (4 marks) (b)
Discuss a methodology that you could develop to achieve this reduction to 2%. Be specific to this situation. (4 marks) THIS IS THE END OF THE EXAMINATION. Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 EXAMINATION - MULTIPLE ACTIVITY CHART TEMPLATE - QUESTION 3 Student Number ………………………………….
Time (minutes) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Downloaded by Arthur Zen (arthurzen126@gmail.com)
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ABPL30055 CONSTRUCTION MANAGEMENT EXAMINATION NETWORK DIAGRAM TEMPLATE - QUESTION 6 STUDENT NUMBER ………………………………………
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