DC Motors Which of the following can be used for controlling the speed of a dc motor? Thyristor Transistor Thyratron Thermistor Thyristor Transistor Thyratron Thermistor ANSWER DOWNLOAD EXAMIANS APP
DC Motors For a D.C. shunt motor if the excitation is changed Torque will change but power will remain constant Torque and power both will change Torque will remain constant Torque, power and speed, all will change Torque will change but power will remain constant Torque and power both will change Torque will remain constant Torque, power and speed, all will change ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor constant torque is produced due to End plates Commutator Pole shoes Rotor laminations End plates Commutator Pole shoes Rotor laminations ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 0.5 4.0 2.0 1.0 0.5 4.0 2.0 1.0 ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Hopkinson's test Swinburne's test Field test Brake test Hopkinson's test Swinburne's test Field test Brake test ANSWER DOWNLOAD EXAMIANS APP
DC Motors A direct on line starter is used for starting motors Upto 20 HP Upto 10 HP Upto 15 HP Upto 5 HP Upto 20 HP Upto 10 HP Upto 15 HP Upto 5 HP ANSWER DOWNLOAD EXAMIANS APP
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