Construction Management
5th Edition
ISBN: 9781119256809
Author: Daniel W. Halpin, Bolivar A. Senior, Gunnar Lucko
Publisher: WILEY
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Chapter 4, Problem 2RQE
To determine
Find the type of contract to perform excavation contract competitively with limited boring data, and explain the reason.
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Which of the following is not a phase of
construction project?
Select one:
a. Tendering
b. Estimation
c. Briefing
d. Commissioning
Question 29
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Marked out of 1.00
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What would be the payback period of
excavator generating annual return of
$70000 and initial cost $350000 and service
life 7 years?
Select one:
a. 2 YEARS
b. 3 YEARS
c. 4 YEARS
17.6 The following planned figures for a trenching job are available:
Quantity Resources(hours) Cost
Excavation—second Machines1000 $100,000
Hauling
Labor 5000 $100,000
100,000 cubic yard Trucks 2000 $ 62,500
At a particular time during the construction, the site manager realizes that the actual excavation will be in the range of 110,000 cubic yards. Based on the new quantity, he figures that he will have 30,000 cubic yards left.
From the main office, the following job information is available:
Resources Cost
Machines 895 hours 85000
Labor 6011 work hours 79000
Trucks 1684 hours…
The total estimated duration of the mass excavation activities in an office building
project is 40 days. After 18 days, the project manager receives the following
information:
Activity
Earth
Clay
Rock
Total Volume to be excavated
(cubic yard)
What is the forecasted cost
Select the correct response:
13,129.03
-16,633.06
20,000
8,000
11,000
-13,129.03
16,633.06
Unit Price
2.50
5.50
7.50
riance of rock excavation?
Actual volume
excavated (cubic yard)
8,400
3,100
6,200
Actual
cost
19,750
20,850
53,900
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- : Explain the role of computers in “Estimation and Tender Documentation Preparation”. Explain Time Scheduling of different construction activates for the execution of the projects.arrow_forwardSolve the following problem. Show work and show answers to at least three decimal places. Solve Problem 20.2 from the book, as modified here: A construction company is bidding on a project comprising five high-rise buildings to be erected one after the other. The company considers the use of advanced, hydraulically operated tunnel forming systems to be purchased and used 40 times on each building over a 1-yr period of time. The tunnel forms cost $30/sf. No salvage value is expected at the end of the 5-yr project. As the two last buildings to be constructed slightly differ in their design, the forms will have to be modified at the cost of $5/sf. Periodical maintenance is expected every 80 uses at a cost of 5% of the purchase cost. Consider an annual interest rate of 4%. What is the expected average material cost per sf for each use? Hints: There is no salvage value. The average material cost has three components: purchase cost, modification cost, and maintenance cost. Purchase occurs…arrow_forwardWhat is the expected project duration? and What is the Standard Deviation of Expected Time?arrow_forward
- The total estimated duration of the mass excavation activities in an office building project is 40 days. After 18 days, the project manager receives the following information: Activity Earth Clay Rock What is the CPI of Earth excavation? Select the correct response: 1.06 1.22 Total Volume to be excavated (cubic yard) 20,000 8,000 11,000 0.93 0.82 Unit Price 2.50 5.50 7.50 Actual volume excavated (cubic yard) 8,400 3,100 6,200 Actual cost 19,750 20,850 53,900arrow_forwardThe following information belongs to a target cost contract: Target cost = $250 M Target band = $230 M and ends $270 M Target contractor fee = $10.5 M Cost saving share = 55/45 by owner Cost increase share = 65/35 by contractor Contractor minimum fees =$5 M The GMC = $320 M Minimum expected project cost = $ 200 M Calculate the contractor fee, if the project cost is 280 M? Select one: a. 6 M b. 3 M c. 4 M d. 5 Marrow_forwardExplain the difference between unit-cost estimating methodsand resource enumeration methods. When would youuse unit cost? When would you use resource enumeration?arrow_forward
- On what basis you can arrive at an estimation for your project?arrow_forwardWhat are the standard contract provisions for the measurement and the payment for a project?arrow_forwardPlease give me answer according to the question. In a construction project, what is tendering or the tendering files? who submit them for the bidders ? who receives the pre-qualification files from the contractors? does it depend on the delivery approach or the type of project: private vs public?arrow_forward
- Rough cost estimate can provide quick cost value to the estimator. true or false?arrow_forward2.1 One of the key competencies of a Quantity Surveyor is to be able to deal with the commencement and the completion procedures of a construction project. a. What are the roles of a Quantity Surveyor in the contractual arrangements of a construction project?arrow_forwardThe selection of the tendering contractors is an extremely important part of the tendering process as the quality of tender returns will only be as good as the quality of the tenderers on the list. It is advisable for project teams to start considering suitable contractors as soon as the project begins. Keeping this in mind critically analyse the different techniques used in construction for the selection of contractor. Describe the three tendering techniques in the selection of contractors? Discuss the advantages and disadvantages for the tendering techniques mentioned. How would these look like in practice? Give some examples for each technique.arrow_forward
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