Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will decrease. any of the above. increase. remain constant. decrease. any of the above. increase. remain constant. ANSWER DOWNLOAD EXAMIANS APP
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 440 A. 40 A. 44 A. 400 A. 440 A. 40 A. 44 A. 400 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of these types of motor is self starting? Poly-phase synchronous machine. Poly-phase induction motor. Single phase induction motor. None of these. Poly-phase synchronous machine. Poly-phase induction motor. Single phase induction motor. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a DC motor can be determent by Lenzs law. Amperes law. Flemings right hand rule. Flemings left hand rule. Lenzs law. Amperes law. Flemings right hand rule. Flemings left hand rule. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer which of the following losses are zero? All of these Iron loss Copper loss Rotational loss All of these Iron loss Copper loss Rotational loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC shunt generator builds up to a voltage of 220 V at no load while running at its rated speed. If the speed of the generator is raised by 25% kepping the circuit conditions unaltered, then the Voltage to which the machine would build up will not change and remain at 220 V increase to 1.25 times 220 V increase to a value greater than 1.25 times 220 V increase to value lying between 220 V and 1.25 times 220 V not change and remain at 220 V increase to 1.25 times 220 V increase to a value greater than 1.25 times 220 V increase to value lying between 220 V and 1.25 times 220 V ANSWER DOWNLOAD EXAMIANS APP
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