Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5 Ω and back emf of 200 V is 400 A. 40 A. 440 A. 44 A. 400 A. 40 A. 440 A. 44 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of dielectric material is used in capacitors used for fans and for power factor correction? Vacuum. Mica. Oil impregnated paper. Glass. Vacuum. Mica. Oil impregnated paper. Glass. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the DC Motor use flywheel? Shunt motor. Differently compared motor. Cumulatively compound motor. Series motor. Shunt motor. Differently compared motor. Cumulatively compound motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is half of the supply voltage. equal to supply voltage. double the supply voltage. All of these half of the supply voltage. equal to supply voltage. double the supply voltage. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 2000 rpm 500 rpm 1000 rpm 250 rpm 2000 rpm 500 rpm 1000 rpm 250 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The fall in speed of the DC generator due to increase in load can be corrected by reducing the load voltage. cooling the armature. increasing the input to the prime mover. increasing the excitation. reducing the load voltage. cooling the armature. increasing the input to the prime mover. increasing the excitation. ANSWER DOWNLOAD EXAMIANS APP
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