Electrical Machines What will happen if the the supply terminals are reversed in case of a DC shunt motor? The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The motor will stop. The motor will run in reverse direction. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The motor will stop. The motor will run in reverse direction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor in split phase induction motor is used to reduce the harmonics. improve the starting torque. start the motor. improve the power factor. reduce the harmonics. improve the starting torque. start the motor. improve the power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the handle of a three point starter goes to back to OFF position, it may be due to zero or very low voltage supply. high filed circuit resistance. over load. all of these. zero or very low voltage supply. high filed circuit resistance. over load. all of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature core of the rotor bars of dc motors are laminated to provide better flux linkage. to reduce hysteresis loss. to reduce eddy current loss. to reduce mechanical losses. to provide better flux linkage. to reduce hysteresis loss. to reduce eddy current loss. to reduce mechanical losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two DC series motors are connected in series and are driving the same mechanical load. If the motors are now connected in parallel the speed will become double. half. one fourth. 4 times. double. half. one fourth. 4 times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 10 Ω 100 Ω 50 Ω 0.1 Ω 10 Ω 100 Ω 50 Ω 0.1 Ω ANSWER DOWNLOAD EXAMIANS APP
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