____ stringers are cut in a sawtooth pattern to form a surface for fastening the treads.

A. Closed
B. Routed
C. Open
D. Housed


Answer: C

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A reinforced concrete floor is framed with beams spaced 35 ft on center in one direction and 16 ft on center in the other direction. Are the slabs that span between the beams one-way slabs or two-way slabs, or does the floor have a combination of these two? Give reason(s) for your answer.

What will be an ideal response?

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The area of a rectangle is found by the formula _____.

a. a = lw b. a = ?r2 c. a = lwh d. a = l รท w

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The pressure switch is used to start the compressor on most systems.

Answer the following statement true (T) or false (F)

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The most efficient thermal storage system is the

A) ice-on-coil (internal melt) system. B) encapsulated ice storage system. C) ice-on-coil (external melt) system. D) ice-harvesting system.

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