Electrical Machines Which of the following machine is invariably provided with forced ventilation? 50 MW generator in a power plant. Fractional horse power high speed motor. Fractional horse power slow speed motor. Hermetically sealed motor of refrigerator. 50 MW generator in a power plant. Fractional horse power high speed motor. Fractional horse power slow speed motor. Hermetically sealed motor of refrigerator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 20KVA auto transformer, turn ratio is 0.8. Find the power transferred conductively? 16KVA 20KVA 4KVA 0KVA 16KVA 20KVA 4KVA 0KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines We can apply source transformation to voltage source when a resistance is connected to it in 14 HP. 13 HP. 15 HP. 10 HP. 14 HP. 13 HP. 15 HP. 10 HP. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf in a dc machine is 1. stationary with respect to field poles 2. stationary with respect to armature 3. rotating with respect to field poles 4. rotating with respect to armature From these, the correct answer is 2, 3 2, 4 1, 3 1, 4 2, 3 2, 4 1, 3 1, 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has negative speed regulation? Differential compound motor Series motor Shunt motor Cumulative compound motors Differential compound motor Series motor Shunt motor Cumulative compound motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will happen if the the supply terminals are reversed in case of a DC shunt motor? The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The motor will run in reverse direction. The motor will stop. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The motor will run in reverse direction. The motor will stop. ANSWER DOWNLOAD EXAMIANS APP
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