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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011)
The main criterion for the design of a distributor is

Temperature rise
Radio interference
Voltage drop
Corona loss

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DGVCL Exam Paper (11-12-2011)
If the percentage reactance of the system upto the point of fault is 20% and the base kVA is 10,000 the short ciruit kVA is

50 MVA
10 MVA
20 MVA
60 MVA

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Short circuit kVA = Base kVA/%X

DGVCL Exam Paper (11-12-2011)
In which of the following motors, the stator and rotor magnetic fields rotate at the same speed?

Synchronous motor
Reluctance motor
Universal motor
Induction motor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

In all machine stator and rotor magnetic field rotates (stationary with respect to each other) at synchronous speed with respect to stationary observer.

DGVCL Exam Paper (11-12-2011)
Kilobyte, megabyte and gigabyte are measuring units used in a computer. How many megabytes make one gigabyte?

1042
1024
1204
1000

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DGVCL Exam Paper (11-12-2011)
Which motor is used to start heavy loads?

Series motor
Cumulatively compounded motor
Shunt motor
Differentially compounded motor

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Torque in d.c motor = k* φ * Ia
In series motor φ α Ia
Tα I²
starting torque of dc series motor is high

DGVCL Exam Paper (11-12-2011)
Which lightning stroke is most dangerous?

Direct stroke on line conductor
Direct stroke on ground wire
Direct stoke on tower top
Indirect stroke on conductor

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MORE MCQ ON DGVCL Exam Paper (11-12-2011)

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