An I.M. moror is preferred to a D.C. motor because of its-----

Related MCQs

• The shaft torque in a DC motor is less than total armature torque because of ____in the motor
• A 4 pole, 500V shunt motor has 720 wave connected conductors on its armature. The full load armature current is 60A and flux per pole is 0.03Wb. The armature resistance is 0.2Ω and contact drop per brush is 1V. What is the full load speed of the motor?
• A 3-phase , 50 Hz , 4-pole squirrel cage induction motor has its stator rewound for 6 poles without any alternations in the rotor. The motor would now run at a speed
• In lathes, milling and grinding machines which motor will preferred?
• If the back emf in a dc motor varnishes suddenly, then the motor:
• A thick wire is used in dc series motor field winding than that in dc shunt motor:
• A DC shunt motor is driving a constant torque load. On inserting an additional resistance in the armature circuit, the speed of the motor will:
• A flywheel is employed with a dc compound motor to reduce the peak demand, the compound motor should be:
• ____ motor is a variable speed motor.
• For 20% increase in current, the motor that will give the greastest increase in torque is ___ motor