Electrical Machines Which motor cannot be started on no load? series motors both B and C cumulative compound motors shunt motors series motors both B and C cumulative compound motors shunt motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements : For a level compounded dc generator to run at constant voltage, the series field mmf must effectively compensate 1. armature reaction mmf 2.armature resistance drop 3. brush contact voltage drop Which of these statements is/are correct ? 1, 2 and 3 1 and 2 1 and 3 2 alone 1, 2 and 3 1 and 2 1 and 3 2 alone ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 6 pole lap connected DC generator with 480 conductors has armature resistance of 0.06 Ω. If the conductors are reconnected to from a wave winding other things remaining unchanged, the value of armature resistance will be 0.06 Ω. 0.54 Ω. 0.01 Ω. 0.54 Ω. 0.06 Ω. 0.54 Ω. 0.01 Ω. 0.54 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following DC generator will be in a position to build up without any residual magnetism in the field? Separately excited. Shunt. Compound. Series. Separately excited. Shunt. Compound. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 2 V 1 V 0 V 4 V 2 V 1 V 0 V 4 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotive which of the following motor are used ? Synchronous motor. Shunt motor. DC series motor. Separately compound motor. Synchronous motor. Shunt motor. DC series motor. Separately compound motor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS