Power Systems Advantages of per unit system is/are Need of transformation ratio It has units for all quantities All of these No units for any quantity Need of transformation ratio It has units for all quantities All of these No units for any quantity ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two generating stations delivering a powers of P1 = 150 MW, P2 =100 MW and the B coefficients are B11 = 0.005, B22 = 0.002, B12=B21= -0.001. Find the transmission line losses? 85.5 102.5 105.2 95.5 85.5 102.5 105.2 95.5 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The function of a surge tank is to produce surge in the pipeline. relieve water hammer pressure in the penstock. none of above. supply water at constant pressure. produce surge in the pipeline. relieve water hammer pressure in the penstock. none of above. supply water at constant pressure. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The steam power plant efficiency can be improved by using large quantity of water. using high temperature and high pressure steam. decreasing the load on the plant. burning large amount of coal. using large quantity of water. using high temperature and high pressure steam. decreasing the load on the plant. burning large amount of coal. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The arc voltage produced in an AC circuit breaker is always leading the arc current by 90°. in phase with the arc current. lagging the arc current by 90°. in phase opposition with the arc current. leading the arc current by 90°. in phase with the arc current. lagging the arc current by 90°. in phase opposition with the arc current. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a fixed value of complex power flow in a transmission line having a sending end voltage V, the real power loss will be proportional to 1 / V. V. 1 / V2. V2. 1 / V. V. 1 / V2. V2. ANSWER DOWNLOAD EXAMIANS APP
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