Electrical Machines In travelling cranes for hoisting and lowering which type of motor is preferred? Synchronous motor. AC slip ring motor. DC series motor. Single phase induction motor. Synchronous motor. AC slip ring motor. DC series motor. Single phase induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC motor is connected across the AC supply it will Run at normal speed. Burn. Run at lower speed. Not run. Run at normal speed. Burn. Run at lower speed. Not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on X-axis and power factor on Y-axis. field current on Y-axis and armature current on X-axis. either of these. field current on X-axis and armature current on Y-axis. field current on X-axis and power factor on Y-axis. field current on Y-axis and armature current on X-axis. either of these. field current on X-axis and armature current on Y-axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motor operation depends on either of these. rotating magnetic field. None of these stationary magnetic field. either of these. rotating magnetic field. None of these stationary magnetic field. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has negative speed regulation? Cumulative compound motors Series motor Differential compound motor Shunt motor Cumulative compound motors Series motor Differential compound motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increases in field excitation of a DC generator, its generated emf decreases. remains constant. increases. increases upto a limit and then remains almost constant. decreases. remains constant. increases. increases upto a limit and then remains almost constant. ANSWER DOWNLOAD EXAMIANS APP
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