Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by any of above methods. designing the motor for adequate synchronizing power. providing damper winding in the rotor pole faces. using a flywheel. any of above methods. designing the motor for adequate synchronizing power. providing damper winding in the rotor pole faces. using a flywheel. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Shunt Motor having armature resistance of 0.5 Ω and 2 A armature current at no-load, when the armature current is changed to 20 A at loaded condition the speed is 1000 r.p.m. What is the speed at no-load? 4575.4 r.p.m. 1037.5 r.p.m. 1130 r.p.m. none of above. 4575.4 r.p.m. 1037.5 r.p.m. 1130 r.p.m. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following load normally needs starting torque more than rated torque? Conveyers. Centrifugal pumps. Blowers. Air compressors. Conveyers. Centrifugal pumps. Blowers. Air compressors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Swinburne's test is applicable to DC series motor. DC shunt and level Compound motor. DC Shunt motor. DC compound motor. DC series motor. DC shunt and level Compound motor. DC Shunt motor. DC compound motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines internal characteristics are plotted between Eg vs Ia Vt vs load current Eg vs load current Vt vs Ia Eg vs Ia Vt vs load current Eg vs load current Vt vs Ia ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory performance of 3-phase 480V, 60 Hz induction motor, the supply voltage at 50 Hz should be equal to 350 V. 480 V. 400 V. 420 V. 350 V. 480 V. 400 V. 420 V. ANSWER DOWNLOAD EXAMIANS APP
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