DGVCL Exam Paper (12-06-2016) The rating of transformer may be expressed in _____ kVAR kVA kW Horse power kVAR kVA kW Horse power ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Equipment : RatingTransformer : kVAAlternator : kVAMotor : kW/HPBattery : ampere-hour
DGVCL Exam Paper (12-06-2016) Which of the following does not change in a transformer? Current Voltage All of these Frequency Current Voltage All of these Frequency 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) The main advantage of AC over DC is: All of these Conversion flexibility from one voltage level to other AC is easy to maintain & can be easily distributed at long distances AC can be easily converted into DC by using a rectifier All of these Conversion flexibility from one voltage level to other 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) 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 1 m 8 m 2 m 4 m 1 m 8 m 2 m ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) The relay operating speed depends upon The spring tension All of these Armature core air gap The rate of flux built up The spring tension All of these Armature core air gap The rate of flux built up ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) In a transmission line if booster transformers are to be used, preferred location will be Anywhere in the line At the receiving end At the sending end At the intermediate point Anywhere in the line At the receiving end At the sending end At the intermediate point ANSWER DOWNLOAD EXAMIANS APP
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