Which of the following cells are NOT considered environmentally friendly?

A. NiCad
B. NiMH
C. Li-Ion
D. Ultra-capacitors


A. NiCad

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If the transformer is to be used to change 480 volts to 120 volts, the primary windings ____.

a. will be connected in series b. will go through the secondary winding c. will be connected in parallel d. will have the leads crossed

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All control systems can be subdivided into ____, no matter how many controls there are.

A. throttle loops B. control loops C. control segments D. sensor segments

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Explain the purpose of union locals?

What will be an ideal response?

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To ensure priming, the pump should be installed so that the pump suction is lower than the tower basin's:

A) Air-inlet fan. B) Cold-water level. C) Deck material. D) Inlet valve.

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