DGVCL Exam Paper (11-12-2011) In which of the following motors, the stator and rotor magnetic fields rotate at the same speed? Synchronous motor Universal motor Reluctance motor Induction motor Synchronous motor Universal motor Reluctance motor Induction motor ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In all machine stator and rotor magnetic field rotates (stationary with respect to each other) at synchronous speed with respect to stationary observer.
DGVCL Exam Paper (11-12-2011) A device connected to the computer which converts digital signals to analog and vice-versa is UPS Modem CPU Keyboard UPS Modem CPU Keyboard ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Which lightning stroke is most dangerous? Indirect stroke on conductor Direct stoke on tower top Direct stroke on ground wire Direct stroke on line conductor Indirect stroke on conductor Direct stoke on tower top Direct stroke on ground wire Direct stroke on line conductor ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) Under operating conditions, the secondary of a current transformer is always short ciruited because It protects the primary ciruits It avoids core saturation and high voltage induction It is safe to human beings It protects the secondary ciruits It protects the primary ciruits It avoids core saturation and high voltage induction It is safe to human beings It protects the secondary ciruits ANSWER DOWNLOAD EXAMIANS APP
DGVCL Exam Paper (11-12-2011) The positive and negative sequence impedance of a transmission line are Different Infinite Zero Equal Different Infinite Zero Equal ANSWER DOWNLOAD EXAMIANS APP
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 Resistor Conductor Capacitor Voltage source Resistor Conductor ANSWER DOWNLOAD EXAMIANS APP
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