DC Motors If conditions for maximum power for a dc motor are established, the efficiency of the motor will be 100 % 60 to 70 % Less than 50% 80 to 90 % 100 % 60 to 70 % Less than 50% 80 to 90 % ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Shunt motor Air motor Series motor Battery operated motor Shunt motor Air motor Series motor Battery operated motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Dc series motors are used in those applications where _____ is required. High starting torque Low no load speed None of the listed here Constant speed High starting torque Low no load speed None of the listed here Constant speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors For constant torque drive which speed control method is preferred? Shunt armature control Field control Mechanical loading system Armature voltage control Shunt armature control Field control Mechanical loading system Armature voltage control ANSWER DOWNLOAD EXAMIANS APP
DC Motors In the dc motor the iron losses occur in Brushes Armature Field Commutator Brushes Armature Field Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The maximum end play of a motor is about 10 mm 0.4 mm 6 mm 2 mm 10 mm 0.4 mm 6 mm 2 mm ANSWER DOWNLOAD EXAMIANS APP
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