Power Systems What type of back up protection is used for alternators? Impedance relay. IDMT relay. Buchholz relay. Mho relay. Impedance relay. IDMT relay. Buchholz relay. Mho relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Where is the draft tube of a hydroelectric plant that is an airtight pipe located In between the runner exhaust and the tail race. At the beginning of the penstock. Near the surge tank. In between the penstock and runner. In between the runner exhaust and the tail race. At the beginning of the penstock. Near the surge tank. In between the penstock and runner. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a nuclear reator thermal energy is obtained from fusion of radioactive material. fission of radioactive material. all of above. burning of fuel rods in oxygen. fusion of radioactive material. fission of radioactive material. all of above. burning of fuel rods in oxygen. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Range of accelerating factor is 1 to 10 50 to 100 10.8 to 11.2 1.6 to 1.8 1 to 10 50 to 100 10.8 to 11.2 1.6 to 1.8 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 2.4 pu 3.975 pu 0.2 pu 1.375 pu 2.4 pu 3.975 pu 0.2 pu 1.375 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A moderator material should have small atomic mass. may be any of the above. large atomic mass. None of these small atomic mass. may be any of the above. large atomic mass. None of these ANSWER DOWNLOAD EXAMIANS APP
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