High resistance in an electrical circuit can cause ________
A) Clicking of relays or solenoids B) Dim lights
C) Slow motor operation D) Any of the above
D
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Almost all nameplates will list the primary voltage, secondary voltage, and ____.
a. serial number b. impedance c. KVA (kilo-volt-amps) rating d. temperature rise
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A counter is required to keep track of information produced by an __________ optical encoder.
A. incremental B. absolute
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In an electric motor, which of the following is the rotating part that contains the power windings and commutator?
a. capacitor b. armature c. rotor d. stator
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According to the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), the minimum vacuum level in a system should be __________ microns.
A. 1,000 B. 2,000 C. 3,000 D. 5,000
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