Electrical Machines Which of the following motors has negative speed regulation? Differential compound motors. Both B and C. Shunt motors. Series motors. Differential compound motors. Both B and C. Shunt motors. Series motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt generator builds up 230 V when driven in clockwise direction. In case it is driven in anti clockwise direction, other things remaining unchanged, then the voltage build up is some what more than 230 V not possible 230 V some what less than 230 V some what more than 230 V not possible 230 V some what less than 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 30° 36° 18° 72° 30° 36° 18° 72° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3.33% +3% -3.33% -3% +3.33% +3% -3.33% -3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature core of a DC machine is laminated to minimise eddy-current loss mechanical loss temperature rise hysteresis loss eddy-current loss mechanical loss temperature rise hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the rotor at slip rings. starting resistance in the starter. None of these stator phases of the motor. rotor at slip rings. starting resistance in the starter. None of these stator phases of the motor. ANSWER DOWNLOAD EXAMIANS APP
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