Computer Programming MCQs

A. Eddy current loss will decrease
B. Eddy current loss will increase
C. Eddy current loss will remain unchanged
D. None of the above

A. Friction and windage losses
B. Magnetic losses
C. Hysteresis and eddy current losses
D. Copper losses

A. Voltage
B. Current
C. Current and voltage
D. Power

A. Core built-up of laminations of cold rolled grain oriented steel
B. Core built-up of laminations of hot rolled sheet
C. Either of the above
D. None of the above

A. To withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns
B. To absorb the line surge voltage and save the winding of transformer from damage
C. To reflect the line surge and save the winding of a transformer from damage
D. None of the above

A. 1.5 mva
B. 5 mva
C. 15 mva
D. 50 mva

A. High eddy current losses
B. Reduced magnetic leakage
C. Negligibly hysteresis losses
D. None of the above

A. On full-load
B. On overload
C. On leading power factor
D. On zero power factor

A. To provide oxygen inside the tank
B. To cool the coils during reduced load
C. To cool the transformer oil
D. To arrest flow of mositure when outside air enters the transformer

A. Step-up transformer
B. Step-down transformer
C. Potential transformer
D. Current transformer