Electrical Machines In a transformer operating at constant voltage if the input frequency increases, the core loss None of these decrease. remains constant. increase. None of these decrease. remains constant. increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a none of above are correct. both are correct. convection machine. conduction machine. none of above are correct. both are correct. convection machine. conduction machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The voltage across the terminals. 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. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The mechanical power is developed by a DC motor is maximum when back emf is equal to twice of applied voltage. back emf is equal to half of applied voltage. none of above. back emf is equal to applied voltage. back emf is equal to twice of applied voltage. back emf is equal to half of applied voltage. none of above. back emf is equal to applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Shunt motor. Differently compared motor. Series motor. Cumulatively compound motor. Shunt motor. Differently compared motor. Series motor. Cumulatively compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When operating, two or more transformers in parallel, % impedance of these transformers should be same. inversely proportional to MVA rating of transformers. such that actual impedance of all transformers would be same. proportionate to MVA rating of transformers. same. inversely proportional to MVA rating of transformers. such that actual impedance of all transformers would be same. proportionate to MVA rating of transformers. ANSWER DOWNLOAD EXAMIANS APP
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