A circuit breaker is rated 2500 A, 2000 MVA, 33 kV, 3 sec, 3-phase oil circuit breaker. Determine the breaking current. 25 kA 350 kA 35 kA 2500 A TRUE ANSWER : ? YOUR ANSWER : ?
In a power network, 400 kV is recorded at a 415 kV bus. A 50 MVAR, 415 kV shunt reactor is connected to the bus. What is the reactive power absorbed by the shunt reactor? 46.45 MVAR 56.45 MVAR 66.45 MVAR 76.45 MVAR TRUE ANSWER : ? YOUR ANSWER : ?
The relation between electric intensity E, voltage applied V and the distance d between the plates of a parallel plate condenser is E = V x d E = V/d E = V/(d)² E = Vx(d)² TRUE ANSWER : ? YOUR ANSWER : ?
Which one of the following is the committee on poverty estimation? Ad hoc committe Tendulkar committee S.S.Tarapore committee Karve committee TRUE ANSWER : ? YOUR ANSWER : ?
In the RLC series circuit shown in figure, resonance occurs when the value of C is 20 µF. The supply voltages is v(t) = 20 sin (500t) V. Find the value of L. 5 mH 0.2 H 5 H 0.2 mH TRUE ANSWER : ? YOUR ANSWER : ?
Thermocouples can be connected in series/parallel to obtain greater sensitivity called as Thermometer None of these Thermopile Thermistor TRUE ANSWER : ? YOUR ANSWER : ?
જે ક્રિયા દર્શાવે પણ વાક્યનો અર્થ પૂર્ણ કરે એ એને ____કહેવાય. - આપેલ વિકલ્પોમાંથી યોગ્યનું ચયન કરી વાક્ય પૂર્ણ કરો વિભક્તિ નીપાત કૃદંત ક્રિયા-વિભક્તિ TRUE ANSWER : ? YOUR ANSWER : ?
A three-phase, 4-pole, 50 Hz induction motor runs at 1425 rpm. Find out the percentage slip of the induction motor. 5% 4% 6% 3% TRUE ANSWER : ? YOUR ANSWER : ?
The voltage applied to a transformer primary is increased keeping V/f constant. With this, the core loss ____ and the magnetizing current (Im) ____ decreases, increases increases, increases increases, remains constant remains constant, decreases TRUE ANSWER : ? YOUR ANSWER : ?
A single phase 240 V, 1 kW heater is connected across single phase 240 V, 50 Hz supply through an SCR. For firing angle delay of 90˚, calculate the power absorbed in the heater element. 275 W 300 W 250 W 225 W TRUE ANSWER : ? YOUR ANSWER : ?