Electrical Machines In synchronous motor, the damper winding is generally used to reduce noise level only. reduce the eddy currents. provide starting torque only. prevent hunting and provide the starting torque. reduce noise level only. reduce the eddy currents. provide starting torque only. prevent hunting and provide the starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following generators negative voltage regulation can occur? both B and C shunt generator over compound generator series generators both B and C shunt generator over compound generator series generators ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In which of the following, voltage regulation may be zero or negative lagging power factor leading power factor unity power factor All of these lagging power factor leading power factor unity power factor All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 3-phase induction motor operating in its stable region remains constant. decreases with increase in the load torque. increases with increase in the load torque. decreases with decrease in the load torque. remains constant. decreases with increase in the load torque. increases with increase in the load torque. decreases with decrease in the load torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines There are two 2-pole DC machines. Main field axis of machine A is horizontal and that of B is vertical. It is preferable to purchase machine A any of the two machines none of these machine B machine A any of the two machines none of these machine B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In travelling cranes for swing action which motor is preferred? Capacitor type induction motors. DC series motor. Reluctance motor. AC slip ring IM. Capacitor type induction motors. DC series motor. Reluctance motor. AC slip ring IM. ANSWER DOWNLOAD EXAMIANS APP
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