Midterm_2023_Final (1)
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University of British Columbia *
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Course
300
Subject
Civil Engineering
Date
Apr 3, 2024
Type
Pages
17
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Midterm Examination CIVL 300: Construction Engineering and Management Term 2 –
2022/2023 11 AM to 12:20 PM, March 9, 2023 Do NOT turn to the next page until told to do so by the instructor! Student Name and Number
: I pledge that I will adhere to UBC and course policies about academic integrity during this examination; I will not engage in activities that might be considered plagiarism or cheating. Signature
: You are allowed
: •
Non-programmable calculators •
Pencils and/or pens You are NOT allowed
: •
Programmable calculators or phones •
Note (i.e., cheat) sheets –
this is a closed-book examination •
To speak or communicate with classmates Instructions: •
Write your student number in the space provided at the top of each page in which you show work. •
Use the space provided on the exam pages for your answers. The extra pages at the end of each individual problem and the examination may be used. •
Place your final answer in the designated space to submit answers for each problem. •
You may only ask questions to the invigilators in cases of supposed errors or ambiguities in examination questions. •
Candidates suspected of any plagiarism will be immediately dismissed from the examination and will be liable for disciplinary action.
Student Number: _____________________
1/16 Score: Problem No. Score Maximum Possible Points 1 6 2 1.5 3 4.25 4 6 5 2.25 Total: 20
Student Number: _____________________
2/16 Problem 1: Analytical Short Response (6 Points) This section is composed of 7 “short” questions
that start off more “qualitative” and become increasingly more “quantitative”
. Be sure to submit your answer to each part in the designated area. 1.1
TransLink is conducting a business case analysis for a light-rail transit project that would connect Surrey to Richmond. TransLink has identified a particular section of this project as being highly complex and potentially quite costly. To transfer as much risk as possible to the project builder, which of the following procurement models do you believe TransLink would prefer? Circle your selected procurement model below and provide a 1-2 sentence justification in the designated space. (0.75 Points) Clearly circle one of the following:
Design-Bid-Build Design-Build Design-Build-Finance Submit your reasoning for your response here
: 1.2 It is March, and UBC is in negotiations with a contractor who will be charged with quickly delivering a series of temporary recreational facilities in time for the summer (i.e., May). Due to the pressing need to complete this project by the summer, which type of cost-plus contract would you expect UBC to prefer? Circle your selected contract below and provide a 1-2 sentence justification in the designated space. (0.75 Points) Clearly circle one of the following:
Fixed Percentage Fixed Fee Submit your reasoning for your response here
: 1.3 You are conducting a productivity study of a small crew that installs drywall. Drywall installation requires very little equipment. Furthermore, crews that install drywall are typically highly specialized. Based on these facts, would you expect that this crew would exhibit increasing, constant, or decreasing returns-to-scale when operating on a construction site? Clearly circle your answer and provide a 1-sentence justification of your reasoning below. (0.75 Points) Clearly circle one of the following:
Increasing Constant Decreasing Submit your reasoning here
:
Student Number: _____________________
3/16 1.4
Draw the activity-on-branch diagram for the following project. Label your activities. There is no need to label the nodes. (1.25 Points) Activity Immediate Predecessor A None B None C A, B D C E C F D, E G E Draw your final answer here
:
Student Number: _____________________
4/16 1.5
A contractor estimates that a project will, on average, cost them $21.6 million. They have generated the below CDF around project costs. Suppose that the project follows a lump sum contract. How much should they mark-up their $21.6 million estimate so that there is only a 20% chance that they lose money? Report your answer in dollars (e.g., $1 million). (0.75 Point)
Submit your answer here
:
______________________________ 1.6-1.7
The time required to obtain permits for a project is highly uncertain. Suppose that you believe the time (in months), t
, required to obtain permits for a project follows the below probability distribution where c
is an integer coefficient: 1.6
What is the value of c
? (1 Point) Submit your answer here
:
______________________________
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
10 12 14 16 18 20 22 24 26 28 30 32 34 36
Cumulative Probability
Cost (Millions of $)
Student Number: _____________________
5/16 1.7
Clearly draw the cumulative distribution for the time to obtain permits below. You must clearly show on your plot the shape of the distribution for the outcomes where the cumulative distribution function lies between 0 and 1. (0.75 Points) Draw your final answer here
:
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