Power Systems Lightning arresters are made up of which material? silicon oxide copper any of the above silver silicon oxide copper any of the above silver ANSWER DOWNLOAD EXAMIANS APP
Power Systems Water hamming process in pen-stocks results in pressure increases. noise increases, pressure increases, velocity decreases. noise increases. None of these pressure increases. noise increases, pressure increases, velocity decreases. noise increases. None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The rate of rise of re-striking voltage is dependent upon resistance of the system only inductance of the system only both 1 and 2 capacitance of the system only resistance of the system only inductance of the system only both 1 and 2 capacitance of the system only ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV? 0.25 0.02 0.025 0.05 0.25 0.02 0.025 0.05 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system network has n nodes, Z33 of its bus impedance matrix is j0.5 pu. The voltage at node 3 is 1.3∠ -10°. If capacitor is having reactance of -j3.5 pu is now added to the network between node 3 and reference node, the current drawn by the capacitor in pu is 0.433∠ 80° 0.325∠ -100° 0.725∠ 80° 0.371∠ -100° 0.433∠ 80° 0.325∠ -100° 0.725∠ 80° 0.371∠ -100° ANSWER DOWNLOAD EXAMIANS APP
Power Systems To reduce the radio interference which line is/are transposed? None of these either 1 or 2 Both power and telecommunication lines Power line None of these either 1 or 2 Both power and telecommunication lines Power line ANSWER DOWNLOAD EXAMIANS APP
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