Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? None of these pure capacitive load pure resistive load pure inductive load None of these pure capacitive load pure resistive load pure inductive load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What does happen if tripled harmonics given to induction motor? Will results in short circuit. Fail to start. Nothing will happen. Will results in open circuit. Will results in short circuit. Fail to start. Nothing will happen. Will results in open circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The result of slip test on a 3-phase, 20 KVA, 400 V, 50 Hz connected salient pole alternator is given below- Phase value: Vmax = 100 V, Vmin = 96 V, Imax = 10 A and I min = 7 A. The direct and quadranature axis reactances are respectively 8.248 and 5.54 Ω. 8.248 and 9.60 Ω. 14.28 and 5.54 Ω. 14.28 and 9.60 Ω. 8.248 and 5.54 Ω. 8.248 and 9.60 Ω. 14.28 and 5.54 Ω. 14.28 and 9.60 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motors, there is large decrease in maximum power factor when the dispersion coefficient is ________________. kept constant to certain value. remains same. increased. decreased. kept constant to certain value. remains same. increased. decreased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The full load copper loss and iron loss of transformer are 6400W and 5000W respectively. The copper loss and iron loss at half load will be respectively? 3200 W and 2500 W 3200 W and 5200 W 1600 W and 1250 W 1600 W and 5000 W 3200 W and 2500 W 3200 W and 5200 W 1600 W and 1250 W 1600 W and 5000 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following DC generator will be in a position to build up without any residual magnetism in the field? Compound. Series. Separately excited. Shunt. Compound. Series. Separately excited. Shunt. ANSWER DOWNLOAD EXAMIANS APP
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