DGVCL Exam Paper (11-12-2011) An AC series circuit has R = 6 Ω, XL = 20 Ω and Xc = 12 Ω. The ciruit power factor will be 0.6 leading 0.6 lagging 0.5 leading 0.8 lagging 0.6 leading 0.6 lagging 0.5 leading 0.8 lagging ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit? Close circuit breaker-close isolator - open earthing switch Close earthing switch - open ciruit- breaker-open islotor Open circuit breaker-open isolator-close earthing switch Open isolator close circuit breaker-open earthing switch Close circuit breaker-close isolator - open earthing switch Close earthing switch - open ciruit- breaker-open islotor Open circuit breaker-open isolator-close earthing switch Open isolator close circuit breaker-open earthing switch ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) In a series RLC circuit at resonance Current is maximum and power factor is 0.5 Current is minimum and power factor is unity Current is maximum and power factor is unity Current is minimum and power factor is 0.5 Current is maximum and power factor is 0.5 Current is minimum and power factor is unity Current is maximum and power factor is unity Current is minimum and power factor is 0.5 ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The purpose of providing a choke in a tube light is To limit the current to an appropriate value To avoid radio interference To eliminate corona effect To improve the power factor To limit the current to an appropriate value To avoid radio interference To eliminate corona effect To improve the power factor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Fot fast load flow calculations, the best method is Approximate method Newton-Raphson De-coupled method Gauss-Siedal Approximate method Newton-Raphson De-coupled method Gauss-Siedal ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The circuit breaker generally used in railway traction is Bulk Oil CB Minimum Oil CB Air break CB Vacuum CB Bulk Oil CB Minimum Oil CB Air break CB Vacuum CB ANSWER DOWNLOAD EXAMIANS APP
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