Looking for BLDG2013-Construction Estimating (T1, 2025) test answers and solutions? Browse our comprehensive collection of verified answers for BLDG2013-Construction Estimating (T1, 2025) at moodle.telt.unsw.edu.au.
Get instant access to accurate answers and detailed explanations for your course questions. Our community-driven platform helps students succeed!
Assuming that lowest bidder wins at the lowest bid price, your firm’s cost estimates and bids, and bids of its competitors for the last five construction contracts are as below. (Show all calculations, 22%)
Contract | Your firm cost estimates (mil) | Your firm bids (mil) | Competitor A bids (mil) | Competitor B bids (mil) | Competitor C bids (mil) |
1 | 210 | 222 | 235 | 215 | 240 |
2 | 115 | 130 | 128 | 132 | 131 |
3 | 55 | 60 | 57 | 58 | 55 |
4 | 110 | 110 | 118 | 121 | 123 |
5 | 385 | 395 | 388 | 387 | 390 |
(a) What is the average percentage mark-up of your firm for the five bidding attempts? (5%)
(b) For the five bidding attempts, evaluate the bidding performance (i.e., bidding competitiveness and consistency in bidding) of your firm using the Bid Competitiveness Ratio (BCR) measure. (10%)
(c) Make two comments on the results obtained in (b). (3%)
(d) Calculate the market share of your firm and its competitors, comment on the results. (4%)
Your firm has kept a good database of its bids, cost estimates and the winning bids for past bidding attempts. As a chief estimator who just joined the firm, you propose the use of cost estimate competitiveness ratios (CECR) from your firm’s past bidding attempts in assessing the competitiveness of your firm’s cost estimate. The output of this CECR measure can be used in the formulation of your firm’s bidding strategies for future bidding attempts. Use a hypothetical plot to present and discuss your proposal and its application in future bidding attempts.
You are required to build up the net cost unit rates for work items in a bill of quantities from first principles.
(a) Explain how to build up net cost unit rate from first principles. (2%)
(b) Estimate the net cost unit rates for following work items and calculate the total net cost of these items. (NB: Show all calculations, 20%)
|
|
Unit
|
Qty
|
Rate
|
Total
|
|
Items
|
|
|
|
|
a
|
Common brickwork in 1:1:6 composition mortar in 76mm thick on edge wall
|
m2
|
150
|
|
|
b
|
Face brickwork in 1:1:6 cement mortar coloured by the addition of yellow oxide in 110 thick skins of cavity walls having joints ironed on one face.
|
m2
|
275
|
|
|
|
|
|
|
|
|
|
Total
|
|
|
|
|
Additional information:
Materials (supply only delivered to site):
Common bricks (230 x 110 x 76) $ 1,200.00/1000
Face bricks (230 x 110 x 76) $ 1,400.00/1000
Cement $ 12.50/bag; Sand $ 120.00/t;
Dry material for mortar required for 110mm thick brick walls: allow 3 bags of cement, 3.2 bags of lime and 0.70t of sand
Dry material for mortar required for 76mm think edge walls: allow 2.4 bags cement, 2.6 bags lime, and 0.55t of sand
Yellow oxide $ 40.00/kg; allow 4kg per 1000 standard bricks laid
Allow 10% wastage on face brick and mortar, 5% wastage on common brick
Subcontract labour rates:
Common brickwork $ 2,100.00/1000
Face brickwork $ 2,300.00/1000
Make no allowance for attendance and supervision of subcontractor (included in preliminaries)
Plant:
Cement mixer hire $ 85.00/day
Make no allowance for scaffolding, included in preliminaries
All further information is to be assumed
You
are required to prepare a cost plan for a new hospital clinic in
Coffs
Harbour
, NSW for a tender scheduled for June 2026.
To complete this task, you do have access to
dimensioned sketch design drawings.
However, there is
a need to locate a comparable cost analysis of a
past similar project. (
18%)(a) What is your preferred source of cost analysis? Why? (3%)
(b) Assuming the comparable cost analysis is for a project in what are the adjustments to be made to the cost analysis of the past project before it can be used for the new project? Justify the need to make the required adjustments. (4%)
(c) For the adjustments identified in (b), calculate the adjustment factors by using the information given above [Note: you need to make assumptions on the indices, and you are not required to access a cost guide]. (6%)
(d) In costing the ‘floor finishes’ element of the new project that is different from the past project, which method would you select for costing this element? Explain the selected method. (5%)
There is a ‘right’ bid for each contractor, but there is no single bid that suits every contractor. Discuss this statement. (10%)
In preparing a pre-tender estimate for a 2-storey hospital clinic, you have access to dimensioned sketch design drawings and the floor plan of a typical unit in the residential building as shown below.
(a) Which method would you use in preparing your pre-tender estimate? Justify your selection. (4%)
(b) For the method selected in (a), explain the pricing process for floor finishes of this two-storey clinic of similar layout plan by using items (or sub-elements) as examples [Note: you need to make reasonable assumptions in explaining the pricing process, and you are not required to perform measurement tasks and access a cost guide] (10%)
(c) factors affecting accuracy of your pre-tender estimate? (4%)
In preparing a pre-tender estimate for a 2-storey hospital clinic, you have access to dimensioned sketch design drawings and the floor plan of a typical unit in the residential building as shown below.
(a) Which method would you use in preparing your pre-tender estimate? Justify your selection. (4%)
(b) For the method selected in (a), explain the pricing process for floor finishes of this two-storey clinic of similar layout plan by using items (or sub-elements) as examples [Note: you need to make reasonable assumptions in explaining the pricing process, and you are not required to perform measurement tasks and access a cost guide] (10%)
(c) factors affecting accuracy of your pre-tender estimate? (4%)
Which of the following is not the key component of a mark-up in bid pricing?
Which of the following would explain why contractors decided to bid for a project?
Which of the following is not true of the findings in Oo et al.’s (2008) study on contractors’ bid or no-bid decision in Australia, Hong Kong, and Singapore?
Get Unlimited Answers To Exam Questions - Install Crowdly Extension Now!