Electrical Machines Two transformers with identical rating, are designed with flux densities of 1.2 and 1.4 Wb / m2 respectively. The weight of first transformer per kVA is equal to that of second transformer. none of these. more than that of second transformer. less than that of second transformer. equal to that of second transformer. none of these. more than that of second transformer. less than that of second transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For power factor improvement the synchronous motor is to be heavily loaded and over excited lightly loaded and over excited lightly loaded and underecited heavily loaded and underexcited heavily loaded and over excited lightly loaded and over excited lightly loaded and underecited heavily loaded and underexcited ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for hoisting and lowering which type of motor is preferred? AC slip ring motor. DC series motor. Single phase induction motor. Synchronous motor. AC slip ring motor. DC series motor. Single phase induction motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the power level the power factor the frequency the level of the voltage the power level the power factor the frequency the level of the voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following winding is connected in series with armature winding of DC machine? Commutating pole winding. Auxiliary winding. Compensating winding. Both Compensating and Commutating pole winding. Commutating pole winding. Auxiliary winding. Compensating winding. Both Compensating and Commutating pole winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has low ratings only? Resistance split phase Shaded pole Capacitor start Capacitor run Resistance split phase Shaded pole Capacitor start Capacitor run ANSWER DOWNLOAD EXAMIANS APP
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