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SYNCHRONISING OF ALTERNATOR
Set 1
Set 1
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Q14212
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What is the necessity of syncronising of alternators?
A
To increase the voltage
B
To increase the voltage
C
To meet the increased power demand
D
Top minimise the current
Q14213
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Which is the condition for paralleling of two alternators?
A
Frequency must be same
B
Frequency must be same
C
Rating must be same
D
Phase sequence must be different
Q14214
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What is the condition of incoming alternators voltages for synchronising of alternators?
A
Out put voltage of alternators must be different
B
Out put voltage of alternators must be different
C
Voltage of incoming alternator must be more
D
Incoming voltage of alternator must be less
Q14215
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When the three lamps used in dark lamp method will light and go out simultaneously?
A
Frequencies of machines are different
B
Frequencies of machines are different
C
Speed of alternators are same
D
Out put voltage of alternators are same
Q14216
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What is the use of dark and bright lamp method?
A
To start the alternator
B
To stop the alternator
C
For synchronising of alternators
D
To change the excitation
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