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Short circuits or grounds can be all of the following except ________.
Contracted
Electron Theory and Conventional Theory hold opposite current flow directions.
True
The effective value of an AC sine wave is equal to the _______ times the maximum value:
0.7071
_____ device protects the compressor during low outdoor ambient temperature:
Crankcase heater
The amount that a given conductor resists the flow of electric current is measured in___________.
Ohms
In a transformer which of the following quantities remains same between primary and sencondary side:
Frequency
In a step up transformer, voltage ______ and current _______:
increases, decreases
When connecting a voltmeter into a DC circuit, what should be observed?
Polarity
A 4 pole machine operates at a speed of about:
1600 rpm
A fuse is rated for:
Both Maximum amperage and voltage
Direct current can change direction.
False
Capacitance value of a capacitor depends on which of the following:
All the options are correct
Which phase is probably open when you test Phase A and Phase B and get a low voltage reading, test Phase B and C and get a normal reading and test Phase A and C and get a low voltage reading?
Phase A
Direct-drive motors are normally used with fans, pumps, and compressors
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