Electrical Machines Wave winding is employed in DC machine of high current and low voltage rating. high current and low voltage rating. low current and low voltage rating. low current and high voltage rating. high current and low voltage rating. high current and low voltage rating. low current and low voltage rating. low current and high voltage rating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slip of an induction motor during DC rheostatic braking is s. 1 - s. 2 + s. 2 - s. s. 1 - s. 2 + s. 2 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are effects of armature reaction? increase the iron loss increase the maintenance and repair increases the design cost All of these increase the iron loss increase the maintenance and repair increases the design cost All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under operating conditions the rotor conductor should be _________________ in induction motor. always closed. always opened. semi closed or semi opened. none. always closed. always opened. semi closed or semi opened. none. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Due to magnetic saturation, the flux per pole in a DC machine without brush shift increases in generators but decreases in motor with load. decreases in both generators and the motors with load. decreases in generators and increases in motor with load. increases in both the generators and the motors with load. increases in generators but decreases in motor with load. decreases in both generators and the motors with load. decreases in generators and increases in motor with load. increases in both the generators and the motors with load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the a 230 V DC motor of armature resistance 0.5 Ω and back emf 200 V is 40 660 600 60 40 660 600 60 ANSWER DOWNLOAD EXAMIANS APP
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