Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to magnetic inertia. high speed. residual flux. high field resistance. magnetic inertia. high speed. residual flux. high field resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slot wedges in a dc machine is made up of silicon steel. cast iron. fibre. mild steel. silicon steel. cast iron. fibre. mild steel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A triangular mmf wave is produced in the air gap of an electric machine. Such wave is produced by stator of a induction machine. rotor of an synchronous machine. rotor of a dc machine. stator of a dc machine. stator of a induction machine. rotor of an synchronous machine. rotor of a dc machine. stator of a dc machine. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Damper winding is used to decrease the load current. suppress the hunting. both 1 and 2. increase the load current. decrease the load current. suppress the hunting. both 1 and 2. increase the load current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor is clockwise when it is supplied with 3 - Φ sinusoidal voltage having phase sequence A - B - C. For counterclockwise rotation of motor, the phase sequence of the supply should be B - C - A or C - A - B. A - C - B. C - A - B. B - C - A. B - C - A or C - A - B. A - C - B. C - A - B. B - C - A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On switching a DC motor to DC supply mains, it is found to rotate in the direction opposite to that for which it is designed. The DC motor is Differentical compound. have an equal number of electrons and protons. Cummulative compound. Series shunt. Differentical compound. have an equal number of electrons and protons. Cummulative compound. Series shunt. ANSWER DOWNLOAD EXAMIANS APP
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