With three phase compressors, a voltage imbalance of greater than ________ will cause the windings within a motor to generate heat beyond safe levels, leading to premature motor failure
A) 1 % B) 2 % C) 3 % D) 4 %
B
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In a closed-loop system, the same fluid (water or water and antifreeze) will absorb heat from the ground in the winter and reject the heat to the ground in the summer.
Answer the following statement true (T) or false (F)
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What does an op amp inverting amplifier do?
What will be an ideal response?
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When charging liquid refrigerant from a single valve supply cylinder, the cylinder is placed ____.
A. upside down B. right side up C. on its side D. in any position indicated
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____ payback is the cost of energy efficiency upgrades divided by energy savings.
A. Efficiency B. Energy efficiency C. Green D. Simple
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