Electrical Machines The torque speed characteristics of a AC servomotor is approximately hyperbola any of the above parabola linearised hyperbola any of the above parabola linearised ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? Armature current Ia. Applied voltage. Field flux. All of these. Armature current Ia. Applied voltage. Field flux. All of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the effect of armature reaction ? Armature flux weakens the main field flux. None of the options. Both option B and C. Armature flux distorts the main field flux. Armature flux weakens the main field flux. None of the options. Both option B and C. Armature flux distorts the main field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to residual flux. high speed. high field resistance. magnetic inertia. residual flux. high speed. high field resistance. magnetic inertia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the same power output rating and full load speed, the motor will have poorest starting torque, is Shunt. Differential compound. Series. Cummulative compound. Shunt. Differential compound. Series. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC shunt motor if load is increased, the speed increased slightly. increase proportional. remains constant. reduce slightly. increased slightly. increase proportional. remains constant. reduce slightly. ANSWER DOWNLOAD EXAMIANS APP
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