The device used to carry air from the interior to the exterior of a structure is a(n) _____.

a. exhaust air duct
b. VAV box
c. makeup air duct
d. fresh air duct


a. exhaust air duct

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Aboveground horizontal runs of glass pipe should be supported by padded hangers that are spaced every _____.

a. 15 to 20 feet b. 12 to 14 feet c. 8 to 10 feet d. 3 to 6 feet

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The radius of a circle is 17.05 cm and the central angle is 240o. What is the area of the sector to the nearest tenth of a sq cm?

A. 600.7 B. 608.8 C. 616.7 D. 620.9

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The total circuit resistance of a parallel circuit will always be:

A) Less than the lowest individual resistance. B) More than the highest individual resistance. C) The same as the highest individual resistance. D) The sum of all the individual resistances.

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Which of these is also known as electrical potential?

A) Volts B) Amps C) Ohms D) None of these

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