Electrical Machines Which of the following generators are used in arc welding? cumulative compound generators differential compound generators shunt generators series generators cumulative compound generators differential compound generators shunt generators series generators ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is self starting? Single phase induction motor. Poly-phase induction motor. Poly-phase synchronous machine. None of these. Single phase induction motor. Poly-phase induction motor. Poly-phase synchronous machine. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the mechanical power is developed by a DC motor maximum None of above. Back emf is equal. back emf is equal to applied voltage. Back emf is equal to half of applied voltage. None of above. Back emf is equal. back emf is equal to applied voltage. Back emf is equal to half of applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct ? None of these Both A and B. Inter pole winding will act in interpolar region. Compensating winding will act under the pole. None of these Both A and B. Inter pole winding will act in interpolar region. Compensating winding will act under the pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output indicate on the name plate of any motor is always the Output power at the shaft. Power drawn in KW. Power drawn in KVA. Gross power. Output power at the shaft. Power drawn in KW. Power drawn in KVA. Gross power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 200 V DC machine supplies 20 A at 200 V as a generator. The armature resistance is 0.2 Ω. If the machine is now operated as a motor at same terminal voltage and current but with the flux increased by 10%, the ratio of motor speed to generator speed is 0.96 0.87 0.95 1.06 0.96 0.87 0.95 1.06 ANSWER DOWNLOAD EXAMIANS APP
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