Power Systems Which of following materials can be used as coolant Heavy water. CO2. Any of above. Helium. Heavy water. CO2. Any of above. Helium. ANSWER DOWNLOAD EXAMIANS APP
Power Systems What will be the ratio of the C.T. on the H.V side of a 3 - φ star / delta 33 / 11 kV transformer if the protecting CT on the LV side has a ratio of 300 : 5 ? 120 : 6 / √3. 200 : 5 / √3. 150 : 4 / √3. 100 : 5 / √3. 120 : 6 / √3. 200 : 5 / √3. 150 : 4 / √3. 100 : 5 / √3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following is used in thermal plants Joule cycle Rankine cycle Otto cycle All of these Joule cycle Rankine cycle Otto cycle All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3 core cable gives on test a capacitance of 3.7 µF between two cores. Find the line charging current of the cable when it is connected to 11 kV, 50 Hz system? 14.7 mA. 1 A. 1.476 A. 14.76 A. 14.7 mA. 1 A. 1.476 A. 14.76 A. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The characteristic impedance of a transmission line is Inversely proportional to square root of its length. Directly proportional to its length. Independent of its length. Directly proportional to square root of its length. Inversely proportional to square root of its length. Directly proportional to its length. Independent of its length. Directly proportional to square root of its length. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The total number of strands(N) is concentrically stranded cable with total annular space filled with strands of uniform diameter is given by (if x is number of layers) N = 3x²-6x+1 N = 3x²-2x+1 N = 3x²+3x+1 N = 3x²-3x+1 N = 3x²-6x+1 N = 3x²-2x+1 N = 3x²+3x+1 N = 3x²-3x+1 ANSWER DOWNLOAD EXAMIANS APP
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