Electrical Machines When two DC series motors are connected in parallel, the resultant speed is zero. less than normal speed. more than normal speed. normal speed. zero. less than normal speed. more than normal speed. normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening control method is used for the _________ ? both A and B below rated speed above rated speed None of these both A and B below rated speed above rated speed None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Regenerative braking is not found in which motor? DC shunt. DC compound. Induction motor. DC series. DC shunt. DC compound. Induction motor. DC series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the motor may not start. the motor may run away. the starting torque becomes low. the starting current will be enormously high. the motor may not start. the motor may run away. the starting torque becomes low. the starting current will be enormously high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The leakage reactance of a 3-phase alternator is determined by performing open circuit and short circuit tests. short circuit and slip tests. zero power factor and slip tests. open circuit and zero power factor tests. open circuit and short circuit tests. short circuit and slip tests. zero power factor and slip tests. open circuit and zero power factor tests. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Example of double excited machine is None of these Both are correct. Synchronous motor. DC Shunt Motor None of these Both are correct. Synchronous motor. DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
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