How many 4' × 8' panels of subflooring are needed?





a. 47

b. 53

c. 71

d. 89


Answer: B

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The minimum riser height required by building codes for a nonresidential stair is _________.

A) 4.5 in. B) 6.0 in. C) 5.5 in. D) 4.0 in. E) 5.0 in.

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Use the following diagram to answer questions 7 through 8. Determine the reading in inches as indicated by the letter A on the English scale.

What will be an ideal response?

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As a safety precaution, electric duct heaters should be wired so that they will not operate unless:

A) Extra heat is needed. B) Other forms of heat are not operating. C) The second stage of the thermostat is closed. D) The fan is operating.

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A(n) ____________________ weld is a continuous weld that may consist of a single weld or a series of overlapping spot welds.

Fill in the blank(s) with the appropriate word(s).

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