Electrical Machines Belt conveyors offer _______________ starting torque. zero. low. medium. high. zero. low. medium. high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the necessity of copper brushes in a dc motors? To absorb the mechanical shocks produced during running condition. To increase the flux cutting by the rotor. None of these. To convert alternating supply current to direct current. To absorb the mechanical shocks produced during running condition. To increase the flux cutting by the rotor. None of these. To convert alternating supply current to direct current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque speed characteristics of a AC servomotor is approximately parabola linearised any of the above hyperbola parabola linearised any of the above hyperbola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when commissioned after a major repair of the field system, failed to build Up voltage. It was because there was a break in the armature circuit field resistance was higher than critical resistance field system lost residual magnetism field winding was wrongly connected there was a break in the armature circuit field resistance was higher than critical resistance field system lost residual magnetism field winding was wrongly connected ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does the use the of height flux density value in transformer design lead to? Decrease in weight/KVA. Reduced iron loss. Increase in weight/KVA. Reduced copper loss. Decrease in weight/KVA. Reduced iron loss. Increase in weight/KVA. Reduced copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motor operation depends on rotating magnetic field. stationary magnetic field. either of these. None of these rotating magnetic field. stationary magnetic field. either of these. None of these ANSWER DOWNLOAD EXAMIANS APP
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