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 78.96 %. 80.25 %. 74.56 %. 79.33 %. 78.96 %. 80.25 %. 74.56 %. 79.33 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following effects are associated with transmission line All of these corona effect ferranti effect skin effect All of these corona effect ferranti effect skin effect ANSWER DOWNLOAD EXAMIANS APP
Power Systems The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is 0.2 pu 4 pu 2 pu 0.5 pu 0.2 pu 4 pu 2 pu 0.5 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems In relay coil which is used? Potential transformer. Instrument transformer. Current transformer. Power transformer. Potential transformer. Instrument transformer. Current transformer. Power transformer. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulator thickness on the conductor, in cables depends upon current reactive power voltage power factor current reactive power voltage power factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems The positive, negative and zero sequence per unit impedance of two generators connected in parallel are X1 = 0.12 pu, X2 = 0.096 pu and X0 = 0.036 pu. For LG fault at generator terminals (with 1 pu voltage) the positive sequence current will be 7.936 pu 9.936 pu 10.936 pu 8.936 pu 7.936 pu 9.936 pu 10.936 pu 8.936 pu ANSWER DOWNLOAD EXAMIANS APP
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