Electrical Machines In DC generators, the cause of rapid brush wear may be any of above. imperfect contact. severe sparking. rough commutator surface. any of above. imperfect contact. severe sparking. rough commutator surface. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound 4 pole dc motor has 460 conductors. Find the number of parallel paths between the conductors? data provided is insufficient. 4. 6. 2. data provided is insufficient. 4. 6. 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ IM in order to eliminate cogging the number of stator slots must be either (B) or (C). equal to number of rotor slots. unequal to number of rotor slots and skewed in shape. an integral multiple of number of rotor slots. either (B) or (C). equal to number of rotor slots. unequal to number of rotor slots and skewed in shape. an integral multiple of number of rotor slots. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following DC Motor the ratio of starting torque to full load torque is minimum? Differential compound motor. Series motor. Cumulative compound motor. Shunt motor. Differential compound motor. Series motor. Cumulative compound motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Yoke. Armature. Brush. Commutator. Yoke. Armature. Brush. Commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Resistance commutation is used generally in case of DC machines bellow 5 kW. DC machines above 10 kW. None of these fractional kW DC machines. DC machines bellow 5 kW. DC machines above 10 kW. None of these fractional kW DC machines. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS