Electrical Machines In DC machine torque depends on which of the following? speed armature current (I) flux (φ) both A and B speed armature current (I) flux (φ) both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of a 3-phase induction motor operating in its stable region decreases with decrease in the load torque. increases with increase in the load torque. decreases with increase in the load torque. remains constant. decreases with decrease in the load torque. increases with increase in the load torque. decreases with increase in the load torque. remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will remain unchanged. aprroach infinity. approach zero. between zero and infinity. remain unchanged. aprroach infinity. approach zero. between zero and infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Aame in both alternators. None of these Hydro alternators. Turbo alternators. Aame in both alternators. None of these Hydro alternators. Turbo alternators. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lap winding is prefered for which type of machines? low current and high voltage high current and low voltage high current and high voltage low current and low voltage low current and high voltage high current and low voltage high current and high voltage low current and low voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease? 10% 5% 19% 40% 10% 5% 19% 40% ANSWER DOWNLOAD EXAMIANS APP
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