The volume of excavation for pits or basements can be obtained by using which formula?

A. Pit Volume = Average Length of Pit + Average Width of Pit + Average Depth of Pit
B. Pit Volume = Average Length of Pit X Average Width of Pit X Average Depth of Pit
C. Pit Volume = Average Length of Pit / Average Width of Pit X Average Depth of Pit
D. Pit Volume = Average Length of Pit X Average Width of Pit / Average Depth of Pit


Answer: B

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Under steady-state dc conditions, find i and v in the circuit in Fig. 6.71.

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A. actuator B. body C. contact blocks D. housing

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Which of the following systems would be most likely to produce a power waveform that would require a true RMS meter to accurately measure?

A) An incandescent light controlled by a toggle switch B) A shaded-pole motor controlled by a relay C) A three-phase motor controlled by a variable-frequency drive D) An electric strip heater controlled by a contactor

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?Air-to-water heat pump system designs can often be adapted for use with water-to-water heat pumps.

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

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