Electrical Machines Two transformers operating in parallel will share the load depending on their efficiency per unit impedance leakage reactance ratings efficiency per unit impedance leakage reactance ratings ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is 40 A. 440 A. 400 A. 44 A. 40 A. 440 A. 400 A. 44 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The air gap between stator and the rotor of the 3 - φ induction motor is kept as wide as possible. air gap does not matter. as small as possible. depends on the material of stator and the rotor. as wide as possible. air gap does not matter. as small as possible. depends on the material of stator and the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for separately excited motors. differential compound motors. series motors. shunt motors. separately excited motors. differential compound motors. series motors. shunt motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A load of 900 lbs is to be raised with a lift car weighting 855 lbs at a speed of 110 feet per minute, the over balance being 40 % and percentage efficiency 45 %. Find the horse power of the motor without counterweight 150. 180. 170. 160. 150. 180. 170. 160. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field current is reduced to zero the maximum power developed by alternator is 0.9103 KW. 1.644 KW. 5.46 KW. 2.73 KW. 0.9103 KW. 1.644 KW. 5.46 KW. 2.73 KW. ANSWER DOWNLOAD EXAMIANS APP
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