Electrical Machines A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is 100 Hz 0 Hz 25 Hz 50 Hz 100 Hz 0 Hz 25 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is less and maximum torque increases more and maximum torque decreases less and maximum torque decreases more and maximum torque remains constant less and maximum torque increases more and maximum torque decreases less and maximum torque decreases more and maximum torque remains constant ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage across the open circuited field termninals of a synchorous machine under slip test is AC of supply frequency. DC of slip frequency. A modulated supply frequency AC voltage with slip frequency envelop. DC. AC of supply frequency. DC of slip frequency. A modulated supply frequency AC voltage with slip frequency envelop. DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 stack stepper motor has 12 teeth on stator as well as on rotor. Determine the step size when each stack excited? 24°. 30°. 10°. 45°. 24°. 30°. 10°. 45°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If B is flux density, l the length of the conductor and v the velocity of the conductor, then emf is given by Bl2v. Blv. Bl2v2. Blv2. Bl2v. Blv. Bl2v2. Blv2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor is used in grinders? Capacitor start capacitor run IM. Synchronous motor. Split phase IM. Capacitor start IM. Capacitor start capacitor run IM. Synchronous motor. Split phase IM. Capacitor start IM. ANSWER DOWNLOAD EXAMIANS APP
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