DGVCL Exam Paper (12-06-2016) For a 66 kV line having span of 200 meters between towers the approximate sag will be 2 m. If the span is double the sag will be: 4 m 8 m 1 m 2 m 4 m 8 m 1 m 2 m ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Earthing switch is used for? All of these Discharging residual energies Measuring of safety voltage Protection of equipment from ground faults All of these Discharging residual energies Measuring of safety voltage Protection of equipment from ground faults ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) _____ are used where it is necessary to control a circuit by a low power signal. Relays Electric Motor Transformer None of these Relays Electric Motor Transformer None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Which of the following does not change in a transformer? Frequency Current Voltage All of these Frequency Current Voltage All of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In transformer voltage and current can be raised or lowered.Frequency remains samePower and Flux remains almost constant.
DGVCL Exam Paper (12-06-2016) Which of the following is the least expensive protection for over current in low voltage system? Oil Circuit breaker Isolator Rewireable fuse Air break circuit breaker Oil Circuit breaker Isolator Rewireable fuse Air break circuit breaker ANSWER DOWNLOAD EXAMIANS APP
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 _____ 0.4 0.2 0.5 0.3 0.4 0.2 0.5 0.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP %error = 100 * (actual - measured )/ actual
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