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 8.85% 2.22% 6.77% 4.76% 8.85% 2.22% 6.77% 4.76% ANSWER DOWNLOAD EXAMIANS APP
DC Motors If the supply voltage for a D.C. motor is increased, which of the following will decrease? Starting torque All of these Full-load current Operating speed Starting torque All of these Full-load current Operating speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which motor has the poorest speed control? Differentially compounded motor Cummulative compounded motor Series motor Shunt motor Differentially compounded motor Cummulative compounded motor Series motor Shunt motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following motor has the poorest speed regulation? Shunt motor Cummulative compound motor Series motor Differentially compound motor Shunt motor Cummulative compound motor Series motor Differentially compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Three point starter can be used for Compound motor only Series motor only Shunt motor only Both shunt and compound motor Compound motor only Series motor only Shunt motor only Both shunt and compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors The mechanical power developed by a shunt motor will be maximum when the ratio of back emf to applied voltage is 2.0 1.0 4.0 0.5 2.0 1.0 4.0 0.5 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS