Power Systems The use of high speed circuit breakers reduces the short circuit current. improves system stability. increased the short circuit current. decrease system stability. reduces the short circuit current. improves system stability. increased the short circuit current. decrease system stability. ANSWER DOWNLOAD EXAMIANS APP
Power Systems On which one of the following cycles does a modern steam power plat work Otto cycle. Rankine cycle. Carnot cycle. Bell - Coleman cycle. Otto cycle. Rankine cycle. Carnot cycle. Bell - Coleman cycle. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which one of the following relays has the capability of anticipating the possible major fault in a transformer? Over fluxing relay Differential relay Buchholz relay Over current relay Over fluxing relay Differential relay Buchholz relay Over current relay ANSWER DOWNLOAD EXAMIANS APP
Power Systems A pin type insulator has 100 kV puncture voltage. If 10 kV flash over voltage occurred in a transmission line, then find the safety factor of insulator? 0.001 10 1000 0.1 0.001 10 1000 0.1 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The voltage regulation of a line at full load 0.8 power factor is 11. A long transmission line under no load conditions, for a good voltage profile needs shunt capacitor at receiving end shunt reactor at receiving end shunt resistance at receiving end All of these shunt capacitor at receiving end shunt reactor at receiving end shunt resistance at receiving end All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems The neutral of 10 MVA, 11 kV alternator is earthed through a resistance of 5 ohms. The fault ready is set to operate at 0.75 A. The current transformers have a ratio of 1000/5. What is the percentage of the alternator winding is protected? 88.2% 11.8% 15% 85% 88.2% 11.8% 15% 85% ANSWER DOWNLOAD EXAMIANS APP
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