Power Systems Rating of fuse wire is expressed in Ω. Watts. Ampere. Mho. Ω. Watts. Ampere. Mho. ANSWER DOWNLOAD EXAMIANS APP
Power Systems If L and C are 4 mH and 0.0001 μF respectively a current chop of magnitude 50 Amp would induced a voltage 50 kV. 100 kV. 200 kV. 400 kV. 50 kV. 100 kV. 200 kV. 400 kV. ANSWER DOWNLOAD EXAMIANS APP
Power Systems When a transformer is loaded, the secondary terminal voltage gains. That means power factor is zero. lagging. leading. unity. zero. lagging. leading. unity. ANSWER DOWNLOAD EXAMIANS APP
Power Systems To protect the power transformer ( Y-Y with neutral grounded) against fault, which type of connection do the current transformers have? Y-Y connection Δ-Δ connection Y-Δ connection Δ-Y connection Y-Y connection Δ-Δ connection Y-Δ connection Δ-Y connection ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 210 Ω 420 Ω 400 Ω 840 Ω 210 Ω 420 Ω 400 Ω 840 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Frequencies must be same in which of the following line to exchange the power from one place to other place ? Synchronous line Asynchronous line both 1 and 2 No need of same frequency for exchange of power Synchronous line Asynchronous line both 1 and 2 No need of same frequency for exchange of power ANSWER DOWNLOAD EXAMIANS APP
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