DC Motors In a dc compound machine, Series field winding plays dominant role Both play equally dominant role Either can play dominant role Shunt field winding plays dominant role Series field winding plays dominant role Both play equally dominant role Either can play dominant role Shunt field winding plays dominant role ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor is preferred for operation in highly explosive atmosphere? Air motor Shunt motor Series motor Battery operated motor Air motor Shunt motor Series motor Battery operated motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the supply voltage for a D.C. motor is increased, which of the following will decrease? All of these Operating speed Full-load current Starting torque All of these Operating speed Full-load current Starting torque 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% 2.22% 8.85% 6.77% 4.76% 2.22% 8.85% ANSWER DOWNLOAD EXAMIANS APP
DC Motors Ward-Leonard control is basically a Voltage control method Field divertor method Armature resistance control method Field control method Voltage control method Field divertor method Armature resistance control method Field control method ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not necessarily the advantage of D.C. motors over A.C. motors? Stability High starting torque Wide speed range Low cost Stability High starting torque Wide speed range Low cost ANSWER DOWNLOAD EXAMIANS APP
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