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? 30 Volts 480 Volts 60 Volts 120 Volts 30 Volts 480 Volts 60 Volts 120 Volts ANSWER EXPLANATION DOWNLOAD EXAMIANS APP For transformer, V2/V1 = N2/N1V2/120 = 50/200V2 = 30 V
DGVCL Exam Paper (12-06-2016) The main advantage of AC over DC is: Conversion flexibility from one voltage level to other All of these AC is easy to maintain & can be easily distributed at long distances AC can be easily converted into DC by using a rectifier Conversion flexibility from one voltage level to other All of these AC is easy to maintain & can be easily distributed at long distances AC can be easily converted into DC by using a rectifier ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The rating of fuse wire is always expressed in _____ kWh Ampere-hours Ampere-volts Amperes kWh Ampere-hours Ampere-volts Amperes ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equipment :Rating Fuse : AmpereTransformer : kVAAlternator : kVAMotor : kW/HPBattery : ampere-hour
DGVCL Exam Paper (12-06-2016) In a transformer the energy is conveyed from primary to secondary By the flux Through cooling coil None of these Through air By the flux Through cooling coil None of these Through air ANSWER EXPLANATION DOWNLOAD EXAMIANS APP function of transfomer is that transfer electrical energy from primary cicuit to secondary through magnetic cicuit by mutual induction
DGVCL Exam Paper (12-06-2016) SF₆ gas: Has pungent smell Is nontoxic Is lighter than air Is yellow in colour Has pungent smell Is nontoxic Is lighter than air Is yellow in colour ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The arc temperature in Oil Circuit Breaker may reach up to _____ 5,000° K None of these 10,000° K 8,000° K 5,000° K None of these 10,000° K 8,000° K ANSWER DOWNLOAD EXAMIANS APP
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