Electrical Machines Armature resistance control method is used for the _______ ? above rated speed both 1 and 2 below rated speed None of these above rated speed both 1 and 2 below rated speed None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 36 74 37 72 36 74 37 72 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor, the damper winding is generally used to provide starting torque only. reduce noise level only. reduce the eddy currents. prevent hunting and provide the starting torque. provide starting torque only. reduce noise level only. reduce the eddy currents. prevent hunting and provide the starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Neglecting all losses, the developed torque (T) of DC separately excited motor, operating under constant terminal voltage is reduced to its output power (P) as T2 ∝ P3. T ∝ √P. T is independent of P. T ∝ P. T2 ∝ P3. T ∝ √P. T is independent of P. T ∝ P. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In alternator, the rotary part is armature. core. magnetic field poles. none of these. armature. core. magnetic field poles. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor fitted with ceiling / table fans is of the value of 5 - 10 F. 1 - 2 µF. 0.1 µF. 2 - 3 µF. 5 - 10 F. 1 - 2 µF. 0.1 µF. 2 - 3 µF. ANSWER DOWNLOAD EXAMIANS APP
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