DGVCL Exam Paper (12-06-2016) The rating of transformer may be expressed in _____ kVA Horse power kW kVAR kVA Horse power kW kVAR ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equipment : RatingTransformer : kVAAlternator : kVAMotor : kW/HPBattery : ampere-hour
DGVCL Exam Paper (12-06-2016) Increasing the number of turns of wire on the secondary of a transformer will Increase the primary current Decrease the secondary current Increase the secondary current Have no effect on the secondary current Increase the primary current Decrease the secondary current Increase the secondary current Have no effect on the secondary current ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer ratio K : N₂/N₁=V₂/V₁=I₁/I₂
DGVCL Exam Paper (12-06-2016) A 100-watt light bulb turned on for 8 hours uses : 800 Wh 8 kWh None of these 0.8 kWh 800 Wh 8 kWh None of these 0.8 kWh ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In Solution 0.8 kWh and 800 Wh both options are given as answer as both are correct
DGVCL Exam Paper (12-06-2016) Which of the following is the least expensive protection for over current in low voltage system? Isolator Oil Circuit breaker Air break circuit breaker Rewireable fuse Isolator Oil Circuit breaker Air break circuit breaker Rewireable fuse ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Core type transformers are popular in _____ High voltage applications All of these Low voltage applications None of these High voltage applications All of these Low voltage applications None of these ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Which of the following does not change in a transformer? Current Frequency Voltage All of these Current Frequency 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.
EXAMIANS