A single phase motor connected to 400 V, 50 Hz supply takes 25 A at a power factor of 0.75 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to 0.95 lagging. 92.55 pF 82.55 pF 72.55 pF 62.55 pF TRUE ANSWER : ? YOUR ANSWER : ?
Arunachal Pradesh does not share its borders with which one of the following nations? Bhutan Myanmar Bangladesh China TRUE ANSWER : ? YOUR ANSWER : ?
Thermopile is used for the measurement of temperature flow rate current emf TRUE ANSWER : ? YOUR ANSWER : ?
The short circuit current of a solar cell is inversely proportional to radiation intensity changes logarithmically with radiation directly proportional to radiation intensity constant and not affected by radiation TRUE ANSWER : ? YOUR ANSWER : ?
A 50 Hz synchronous generator is connected to an infinite bus through a line. The p.u. reactances of generator and the line are j0.4 p.u. and j0.2 p.u. respectively. The generator no load voltage is 1.1 p.u. and that of infinite bus is 1.0 p.u. The inertia constant of the generator is 4 MW-sec/MVA. Determine the frequency of natural oscillations if the generator is loaded to 60% of its maximum power transfer capacity and small perturbation in power is given. 1.2 Hz 1.6 Hz 0.8 Hz 1.8 Hz TRUE ANSWER : ? YOUR ANSWER : ?
A rectangular conductor is 1.6 inches wide and 0.25 inch thick. What is its area in square mils? 400 square mils 40000 square mils 4000 square mils 400000 square mils TRUE ANSWER : ? YOUR ANSWER : ?
1. મોટેભાગે 'જાણે' શબ્દ હોય ત્યારે,ઉત્પ્રેક્ષા અલંકાર બને છે.<br/>૨. જયારે ઉપમેય અને ઉપમાન એક જ હોય ત્યારે ઉપમા અલંકાર બને છે.<br/>સરખાવવામાં આવેલ બે શબ્દોની વચ્ચે 'જયારે', 'જેવો', 'જેવી' જેવા શબ્દો આવે ત્યારે રૂપક અલંકાર બને.<br/>જયારે ટીકા કે નિંદા કે વ્યંગના રૂપે પ્રશંસા કરાય ત્યારે અતિશયોક્તિ અલંકાર બને.<br/>ઉપરોક્ત વિધાનોમાંથી કયું/ક્યાં વિધાનો સાચા છે. માત્ર 4 1, 3 2, 4 માત્ર 1 TRUE ANSWER : ? YOUR ANSWER : ?
A 10 A, Type C Miniature Circuit Breaker (MCB) will trip at fault currents greater than 100 A between 50 A and 100 A between 10 A and 50 A less than 10 A TRUE ANSWER : ? YOUR ANSWER : ?
Determine the ohmic value of the current limiting reactor per phase external to a 40 MVA, 15 kV, 50 Hz, three phase synchronous generator which can limit the current on short circuit of 6 times the full load current. The reactance of the synchronous generator is 0.06 pu. 0.6 Ω 0.4 Ω 0.2 Ω 0.8 Ω TRUE ANSWER : ? YOUR ANSWER : ?