DC Motors In the dc motor the iron losses occur in Brushes Commutator Armature Field Brushes Commutator Armature Field ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a motor falls from 1100 r.p.m. at no-load to 1050 r.p.m. at rated load. The speed regulation of the motor is 6.77% 4.76% 8.85% 2.22% 6.77% 4.76% 8.85% 2.22% ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc series motors are used in those applications where _____ is required. None of the listed here Low no load speed High starting torque Constant speed None of the listed here Low no load speed High starting torque Constant speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors During rheostat braking of dc series motor Motor is run as a generator Motor is run at reduced speed None of the listed here Motor is reversed in direction Motor is run as a generator Motor is run at reduced speed None of the listed here Motor is reversed in direction ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a D.C. shunt motor, under the conditions of maximum power, the current in the armature will be More than full-load current Almost negligible Less than full-load current Rated full-load current More than full-load current Almost negligible Less than full-load current Rated full-load current ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed in a dc motor is maximum when back emf is equal to _____ the applied voltage. None of the listed here Twice Half One-third None of the listed here Twice Half One-third ANSWER DOWNLOAD EXAMIANS APP
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