DGVCL Exam Paper (12-06-2016) A circuit breaker is designed to protect an electrical circuit from damage caused by : Over current All of these Over load Short circuit Over current All of these Over load Short circuit ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) _____ electric power is the most common method used by electrical grids to transfer power Three-phase None of these One-phase Two-phase Three-phase None of these One-phase Two-phase ANSWER DOWNLOAD EXAMIANS APP
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 Rewireable fuse Air break circuit breaker Isolator Oil Circuit breaker Rewireable fuse Air break circuit breaker Isolator ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) About how many times longer would a 10 watt light bulb be able to burn compared to a 100 watt bulb with the same energy? 10 times longer None of these Same time 100 times longer 10 times longer None of these Same time 100 times longer ANSWER DOWNLOAD EXAMIANS APP
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? 60 Volts 120 Volts 30 Volts 480 Volts 60 Volts 120 Volts 30 Volts 480 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) Transformer has _____ Primary winding and secondary winding None of these Auxiliary winding and secondary winding Primary winding and Auxiliary winding Primary winding and secondary winding None of these Auxiliary winding and secondary winding Primary winding and Auxiliary winding ANSWER DOWNLOAD EXAMIANS APP
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