DGVCL Exam Paper (11-12-2011) The advantage of slipring induction motor over the squirrel cage induction motor is It has a higher efficiency It is suitable for higher speeds It can be started with the help of rotor resistances It's power factor is higher It has a higher efficiency It is suitable for higher speeds It can be started with the help of rotor resistances It's power factor is higher ANSWER EXPLANATION DOWNLOAD EXAMIANS APP slip ring motor have high starting torque compare to squirrel cage motor and have good speed controlalso have high over loading capacity, smooth acceleration under heavy loads.
DGVCL Exam Paper (11-12-2011) At time t= 0+ , with zero initial condition, which of the following acts as a short circuit? Capacitor Voltage source Conductor Resistor Capacitor Voltage source Conductor Resistor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The circuit breaker generally used in railway traction is Bulk Oil CB Vacuum CB Air break CB Minimum Oil CB Bulk Oil CB Vacuum CB Air break CB Minimum Oil CB ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The bus bar zone faults are generally Single line to ground faults Phase to phase faults Three phase short ciruits Double line to ground faults Single line to ground faults Phase to phase faults Three phase short ciruits Double line to ground faults ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) What happens to the contents of RAM (Random Access Memory) when the power of the computer is turned off? Content gets corrupted Content is transferred to other memory Content remains intact Content is lost Content gets corrupted Content is transferred to other memory Content remains intact Content is lost ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) In carrier current protection, the purpose of the wave trap is for Trapping high frequency waves entering into generator/transformer unit. All of these Tripping fault current Trapping power frequency waves Trapping high frequency waves entering into generator/transformer unit. All of these Tripping fault current Trapping power frequency waves ANSWER DOWNLOAD EXAMIANS APP
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