Once the design of a project is under way, budget amounts can be established for the various elements of the project using procedures for a ____ estimate.

A. conceptual
B. preliminary
C. design
D. final


Answer: B

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A water-source heat pump does not require a defrost cycle because

A) it uses buried loops in which water is circulated, and the heat is then extracted from the water. B) there are no check valves or extra metering devices within a water-source heat pump. C) the fluid circulating through the water-source unit cannot be allowed to freeze. D) most water-source units use a single bi-flow thermostatic expansion valve.

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A) By moving the speed tap on the blower motor B) By adjusting the pitch of the blades on the blower wheel C) By increasing or decreasing the voltage to the fan motor D) By adjusting the sheave on an adjustable pulley

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What is the role of a function prototype?

What will be an ideal response?

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