Engineering Economics
What is a stock of a product which is held by a trade body or government as a means of regulating the price of that product?

Stock pile
Hoard stock
Withheld stock
Buffer stock

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Engineering Economics
A construction estimate is used

To produce a statement of the approximate cost
To judge tentatively or approximate value of the project
To decide an approximation of the value of the project and not the exact cost
None of these

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Engineering Economics
Pick up the correct reason for making conceptual (or preliminary) estimate from the following:

To have a check on a definitive cost estimate
All of these
To check quotations from contractors and/or sub-contractors
To compute target estimate for the owner while drawing and specifications are in initial stage

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