Power Systems For large plants of capacity for more than 15 MW, what type of cooling is used Water. Hydrogen. Liquid. Air. Water. Hydrogen. Liquid. Air. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The power factor is unity The line is lightly loaded The line is heavily loaded The line is fully loaded The power factor is unity The line is lightly loaded The line is heavily loaded The line is fully loaded ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has impedance of (0.005 + j0.05) pu. Find the line at which maximum value of negative DC off set current is produced, if it is applied with Vm cosωt? 1.47 msec 4.68 msec 9.68 2.63 msec 1.47 msec 4.68 msec 9.68 2.63 msec ANSWER DOWNLOAD EXAMIANS APP
Power Systems For a lossy transmission line, the characteristic impedance does not depend on The conductivity of conductors. The operating frequency of the line. The load terminating the line. The permittivity of the dielectric separating the conductor. The conductivity of conductors. The operating frequency of the line. The load terminating the line. The permittivity of the dielectric separating the conductor. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The flow duration curve at a given head of a hydroelectric plant is used to determine diversity factor for the plant. total units of energy available. total power available at the site. load factory at the plant. diversity factor for the plant. total units of energy available. total power available at the site. load factory at the plant. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In order to have lower cost of power generaion The load factor and diversity factor should be high the load factor should be high but diversity factor should be low the load factor and diversity factor should be low the load factor should be low but diversity factor should be high The load factor and diversity factor should be high the load factor should be high but diversity factor should be low the load factor and diversity factor should be low the load factor should be low but diversity factor should be high ANSWER DOWNLOAD EXAMIANS APP
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