Electrical Machines Neglecting all losses, the developed torque (T) of DC separately excited motor, operating under constant terminal voltage is reduced to its output power (P) as T is independent of P. T ∝ P. T2 ∝ P3. T ∝ √P. T is independent of P. T ∝ P. T2 ∝ P3. T ∝ √P. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a step down transformer which one of the following statements is true? Number of secondary turns is more than that of primary. Secondary power is less than primary power. Secondary current is less than primary current. Number of secondary turns is less than primary turns. Number of secondary turns is more than that of primary. Secondary power is less than primary power. Secondary current is less than primary current. Number of secondary turns is less than primary turns. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will stop. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will run at its normal speed in the same direction as before. The motor will stop. The direction of rotation will reverse. The motor will run much faster in the same direction. The motor will run at its normal speed in the same direction as before. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the phase difference between two windings of A.C servomotor ? 90°. 30°. 120°. 60°. 90°. 30°. 120°. 60°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor is used in paper machines? DC series motor. DC compound motor. Separately excited DC motor. DC Shunt motor. DC series motor. DC compound motor. Separately excited DC motor. DC Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shaded pole single phase induction motor can be used for wet grinders food mixers tape recorders personal computers as cooling fan wet grinders food mixers tape recorders personal computers as cooling fan ANSWER DOWNLOAD EXAMIANS APP
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