Electrical Machines Larger values of air flux density is taken while designing IM for both. larger bore diameter. none. larger output. both. larger bore diameter. none. larger output. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Considering a galvanometer is connected to the rotor of a 3 - Φ, 4 pole, 50 Hz IM and is making 130 oscillations in a minute, then calculate the rotor speed? 1500. 1450. 1435. 1440. 1500. 1450. 1435. 1440. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3.33% -3.33% -3% +3% +3.33% -3.33% -3% +3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field weakening control method is used for the _________ ? None of these both A and B below rated speed above rated speed None of these both A and B below rated speed above rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a cumulatively compound DC motor can be controlled by varying Shunt field resistance control. Armature resistance control. Any of above. Armature voltage control. Shunt field resistance control. Armature resistance control. Any of above. Armature voltage control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. less than the width of commutator segment. the width of the 2 to 3 commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. less than the width of commutator segment. ANSWER DOWNLOAD EXAMIANS APP
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