Power Systems Which of the following is/are the disadvantages of phase modifiers? All of these Initial cost of synchronous phase modifier is higher It consumes both active and reactive power It requires more maintenance because of running equipment All of these Initial cost of synchronous phase modifier is higher It consumes both active and reactive power It requires more maintenance because of running equipment ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rating of fuse wire is always expressed in kWh. amperes. ampere-volts. ampere-hours. kWh. amperes. ampere-volts. ampere-hours. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is an impulse turbine Kaplan turbine. Pelton turbine. None of above. Francis turbine. Kaplan turbine. Pelton turbine. None of above. Francis turbine. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where is the draft tube of a hydroelectric plant that is an airtight pipe located At the beginning of the penstock. In between the runner exhaust and the tail race. Near the surge tank. In between the penstock and runner. At the beginning of the penstock. In between the runner exhaust and the tail race. Near the surge tank. In between the penstock and runner. ANSWER DOWNLOAD EXAMIANS APP
Power Systems An unloaded generator with a pre-fault voltage 1 pu has the following sequence impedance: Z0 = j 0.15 pu, Z1 = Z2 = j 0.25 pu The neutral is grounded with a reactance of 0.05 pu. The fault current in pu for single line to ground fault is 3.75 pu 2.5 pu 7.25 pu 4.28 pu 3.75 pu 2.5 pu 7.25 pu 4.28 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the thermal efficiency of a 240 V, 1000 W electric kettle if it brings 2 liters of water at 15° C to boiling point 15 Minutes 79.33 %. 74.56 %. 78.96 %. 80.25 %. 79.33 %. 74.56 %. 78.96 %. 80.25 %. ANSWER DOWNLOAD EXAMIANS APP
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