Power Systems Advantages of per unit system is/are All of these No units for any quantity It has units for all quantities Need of transformation ratio All of these No units for any quantity It has units for all quantities Need of transformation ratio ANSWER DOWNLOAD EXAMIANS APP
Power Systems The use of high speed circuit breakers decrease system stability. reduces the short circuit current. improves system stability. increased the short circuit current. decrease system stability. reduces the short circuit current. improves system stability. increased the short circuit current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In kaplan runner, the number of blades is generally of the order of 12 - 16. 1 - 2. 16 - 24. 3 - 6. 12 - 16. 1 - 2. 16 - 24. 3 - 6. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reactance relays are used for the protection of short transmission lines only long transmission lines only medium transmission lines only All of these short transmission lines only long transmission lines only medium transmission lines only All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The area under a flow duration curve represents total of units of energy available. total power available. total quantity of run-off during that period. maximum rate of run-off during the period. total of units of energy available. total power available. total quantity of run-off during that period. maximum rate of run-off during the period. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In load flow studies PV bus is treated as PQ bus when reactive power goes beyond limit phase angle become high any of the above voltage at the bus become high reactive power goes beyond limit phase angle become high any of the above voltage at the bus become high ANSWER DOWNLOAD EXAMIANS APP
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