Technician A says that a self-test DTC identifies a hard fault. Technician B says that a memory DTC always represents a soft fault. Who is correct?

A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B


Answer: A

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All of the following are reasons why project costs may exceed estimated prices EXCEPT ________.

A. actual productivity does not meet anticipated productivity. B. subcontractors or materials suppliers fail to meet obligations. C. takeoff quantities are too high. D. takeoff quantities are too low.

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The accompanying figure illustrates the steps for drawing an arc in combination with other arcs. Describe step 3.

What will be an ideal response?

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Which of these systems uses a small amount of central air to induce the flow of room air?

A) Fan coils. B) PTAC. C) Dual duct VAV. D) Chilled beam. E) Fan terminal units.

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