DGVCL Exam Paper (12-06-2016) The following is a Distribution Company: MGVCL CSERC GERC DERC MGVCL CSERC GERC DERC ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Wave trap is used to trap waves of: Power frequencies All of these None of these Higher frequencies entering generator or transformer units Power frequencies All of these None of these Higher frequencies entering generator or transformer units ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) Transformer has _____ Auxiliary winding and secondary winding Primary winding and secondary winding None of these Primary winding and Auxiliary winding Auxiliary winding and secondary winding Primary winding and secondary winding None of these Primary winding and Auxiliary winding ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (12-06-2016) What will happen if the primary of a transformer is connected to DC supply? Transformer will operate with low efficiency Transformer may start to smoke and burn Transformer will operate with high efficiency No effect Transformer will operate with low efficiency Transformer may start to smoke and burn Transformer will operate with high efficiency No effect ANSWER EXPLANATION DOWNLOAD EXAMIANS APP transformer works on principle of faraday's law of electromagnetic induction. So if D.C supply use, no indction are produced and due to this E.M.F not induced in winding and transfer of electrical energy is not possible.
DGVCL Exam Paper (12-06-2016) The following is correct : All of these P = V²/R P = I²xR P = VxI All of these P = V²/R P = I²xR P = VxI ANSWER EXPLANATION DOWNLOAD EXAMIANS APP True for DC Circuits.For single pahse ac P = V I CosØ
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 _____ 0.5 0.2 0.3 0.4 0.5 0.2 0.3 0.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP %error = 100 * (actual - measured )/ actual
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