Electrical Machines Which of the following motors has low ratings only? Resistance split phase Capacitor start Capacitor run Shaded pole Resistance split phase Capacitor start Capacitor run Shaded pole ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lap winding is prefered for which type of machines? high current and high voltage low current and low voltage high current and low voltage low current and high voltage high current and high voltage low current and low voltage high current and low voltage low current and high voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through slip rings. none of above. solid connection. commutator. slip rings. none of above. solid connection. commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to None of above. The speed of motor. The torque required. The voltage across the terminals. None of above. The speed of motor. The torque required. The voltage across the terminals. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Consider the following statements regarding the magnetization characteristics of a dc generator : 1. It represents the variation of field flux with field current. 2. Variation of open-circuit terminal voltage with field current is independent of speed 3. It is non-linear from zero to rated field current 4. It helps to determine the critical field resistance at a given speed 5. It always starts from the origin Which of these statements are correct ? 1 and 4 1, 2 and 5 3 and 5 2, 3 and 4 1 and 4 1, 2 and 5 3 and 5 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same phase sequence same prime mover speed same voltage magnitude same frequency same phase sequence same prime mover speed same voltage magnitude same frequency ANSWER DOWNLOAD EXAMIANS APP
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