Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 1000 rpm 2000 rpm 250 rpm 500 rpm 1000 rpm 2000 rpm 250 rpm 500 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the source voltage of a DC motor is increased, which of the following will decrease? Starting torque. Starting torque, operating speed, full load current. Full load current. Operating speed. Starting torque. Starting torque, operating speed, full load current. Full load current. Operating speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The short circuit test on a transformer is conducted to obtain eddy current loss. core loses only. hysteresis loss. copper losses. eddy current loss. core loses only. hysteresis loss. copper losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a stepper motor the detente torque means maximum of the static torque with the phase winding excited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding unexcited. maximum of the static torque with the phase winding excited. minimum of the static torque with the phase winding excited. maximum of the static torque with the phase winding unexcited. minimum of the static torque with the phase winding unexcited. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator, inverted 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 field current on X-axis and armature current on Y-axis field current on Y-axis and power factor on X-axis field current on X-axis and power factor on Y-axis field current on Y-axis and armature current on X-axis field current on X-axis and armature current on Y-axis field current on Y-axis and power factor on X-axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Resistance commutation is used generally in case of fractional kW DC machines. DC machines bellow 5 kW. DC machines above 10 kW. None of these fractional kW DC machines. DC machines bellow 5 kW. DC machines above 10 kW. None of these ANSWER DOWNLOAD EXAMIANS APP
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