Electrical Machines In a dc machine 72 number of coils are used. Find the number of commutator segments required? 36 74 72 37 36 74 72 37 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stepper motor is used in food processing All of these traction computer printers food processing All of these traction computer printers ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A compound dc generator is delivering full load current at a terminal voltage of 230 V. Its series-field winding gets short circuited. If its terminal voltage 1. becomes more than 230 V, it is overcompounded generator 2. becomes more than 230 V, it is differentially compounded generator 3. becomes less than 230 V, it is overcompounded generator 4. becomes less than 230 V, it is differentially compounded generator 5. becomes less than 230 V, it is level compounded generator From these, the correct answer is 2, 3, 5 1, 4 2,3 1, 4, 5 2, 3, 5 1, 4 2,3 1, 4, 5 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 115 V 460 V 200 V 230 V 115 V 460 V 200 V 230 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor when the length of the air gap is increased, the magnetizing current of the motor increases while the short circuit current __________________. kept constant to certain value. increased. decreased. remains unchanged. kept constant to certain value. increased. decreased. remains unchanged. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? All of these ZPF method. Synchronous impedance method. MMf method. All of these ZPF method. Synchronous impedance method. MMf method. ANSWER DOWNLOAD EXAMIANS APP
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