Electrical Machines Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of None of above. Field current. Armature current. Line current. None of above. Field current. Armature current. Line current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Magnetic field of a DC generator is produced by what? Permanent magnets. Electromagnets. None of the options. Both B and C. Permanent magnets. Electromagnets. None of the options. Both B and C. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Cumulatively compound motor. Shunt motor. Differently compared motor. Series motor. Cumulatively compound motor. Shunt motor. Differently compared motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. magnetizing current. power factor. air gap flux. speed. magnetizing current. power factor. air gap flux. speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a transformer is loaded, the secondary terminal voltage drops. That means power factor is lagging. zero. unity. leading. lagging. zero. unity. leading. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the source voltage of a DC motor is increased, which of the following will decrease? Full load current. Starting torque. Starting torque, operating speed, full load current. Operating speed. Full load current. Starting torque. Starting torque, operating speed, full load current. Operating speed. ANSWER DOWNLOAD EXAMIANS APP
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