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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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
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
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
A counter is required to keep track of information produced by an __________ optical encoder.
A. incremental B. absolute