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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016)
In case the height of transmission tower is increased, which of the following parameter is likely to change?

Inductance
None of these
Capacitance
Resistance

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DGVCL Exam Paper (12-06-2016)
True value has been 50 whereas measured value is 40 then the percentage error in the reading will be _____

0.3
0.4
0.2
0.5

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

%error = 100 * (actual - measured )/ actual

DGVCL Exam Paper (12-06-2016)
A certain transformer has 200 turns in the primary winding, 50 turns in the secondary winding and 120 volts applied to the primary. What is the voltage across the secondary?

480 Volts
60 Volts
120 Volts
30 Volts

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

For transformer, V2/V1 = N2/N1
V2/120 = 50/200
V2 = 30 V

DGVCL Exam Paper (12-06-2016)
Capacitance is the ability of a body to store an _____

voltage
All of these
electric current
electrical charge

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DGVCL Exam Paper (12-06-2016)
Reactance relay is used for protection against:

Over voltage fault
None of these
Earth fault
Phase fault

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DGVCL Exam Paper (12-06-2016)
The UGVCL is operative in the _____ Gujarat.

Western
Northern
Southern
Central

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