Electrical Machines If peak value of phase mmf is F max , then peak value of the rotating field caused by three phase is (3/2)Fmax. Fmax. (1/2)Fmax. 3Fmax. (3/2)Fmax. Fmax. (1/2)Fmax. 3Fmax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to less than the width of commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. less than the width of commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip rings of an induction motors are made of aluminium. carbon. phosphor bronze. stainless steel. aluminium. carbon. phosphor bronze. stainless steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If input of a transformer is square wave the output will be pulsed wave. sine wave. square wave. triangular wave. pulsed wave. sine wave. square wave. triangular wave. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The speed of motor. None of above. The torque required. The voltage across the terminals. The speed of motor. None of above. The torque required. The voltage across the terminals. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The voltmeter connected across a generator reads voltage same at no load and at full load (rated). The generator is of the type series generator. level compound. short - shunt generator. shunt generator. series generator. level compound. short - shunt generator. shunt generator. ANSWER DOWNLOAD EXAMIANS APP
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