A ____ is a prefabricated structural member composed of a joist member, rafter members, and various types of support members between the joist and rafters.

A. roof join
B. roof tie
C. roof truss
D. roof tether


Answer: C

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When block work is gradually adjusted so that a difference in height is not evident, it is said to be _____ .

A. leveled B. differentiated C. humored D. parged

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Explain what an isolation joint in concrete construction is.

What will be an ideal response?

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Why is the Montreal Protocol significant?

A) It does not require government action to achieve its goals. B) It has led to a complete ban on ozone-depleting products. C) Its benchmark goals have all been met. D) It has the support of almost every country in the world.

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On a DC motor, the armature is typically labeled ____.

A. S1 and S2 B. F1 and F2 C. A1 and A2 D. T1 and T2

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