Electrical Machines Direct axis reactance is defined as the ratio of Vmin to Imin Vmax to Imin Vmax to Imax Vmin to Imax Vmin to Imin Vmax to Imin Vmax to Imax Vmin to Imax ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne's test is applicable to DC shunt and level Compound motor. DC series motor. DC compound motor. DC Shunt motor. DC shunt and level Compound motor. DC series motor. DC compound motor. DC Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor especially the cage rotors slots are nearly parallel to shaft axis. This is called crawling. skewing. slip. cogging. crawling. skewing. slip. cogging. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines R1 is the resistance of the primary winding of the transformer. The turn ratio in terms of primary to secondary is K. Then the equivalent resistance of the primary referred to secondary is R1 /K K²R1 K×R1 R1 /K² R1 /K K²R1 K×R1 R1 /K² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the mechanical power developed by a DC series motor is maximum? Back emf is equal to zero. None of above. Back emf is equal to applied voltage. Back emf is equal to half the applied voltage. Back emf is equal to zero. None of above. Back emf is equal to applied voltage. Back emf is equal to half the applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Shunt Motor having shunt field resistance of 250 Ω and armature resistance of 0.5 Ω is connected to 250 V supply and load current of 21 A. What is the back emf generated ? 150 V. 210 V 240 V. 230 V. 150 V. 210 V 240 V. 230 V. ANSWER DOWNLOAD EXAMIANS APP
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