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The field rheostat in a DC generator is used to adjust the _____ of the unit.
1) Torque
2) Current
3) Direction of rotation
4) Output voltage
5) Slip
Output voltage
Alternators are constructed to use slip rings made of brass or:
1) Copper
2) Mica
3) Steel
4) Carbon
5) Silicon
Steel
A 6 pole alternator producing 60 Hz power must turn at:
1) 600 rpm
2) 1 200 rpm
3) 2 400 rpm
4) 1 800 rpm
5) 1 000 rpm
1 200 rpm
A compound wound DC generator may have three characteristics which are a:
1. Decreasing output voltage verses load
2. No amperage requirement
3. Constant output voltage
4. Supplementary AC requirement
5. Rising output voltage versus load
1) 1, 2, 4
2) 2, 3, 5
3) 2, 3, 4
4) 1, 3, 5
5) 1, 4, 5
A rheostat is also known as a:
1) Flux field regulator
2) Resistance regulator
3) Variable resistor
4) Current controller
5) Voltage regulator
Variable resistor
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