Power Systems The maximum efficiency of modern coal fired steam steam raising thermal power plants is restricted to about 0.35( a low value), mainly because of low alternator efficiency high energy loss in condenser high energy loss in boilers low steam turbine mechanical efficiency low alternator efficiency high energy loss in condenser high energy loss in boilers low steam turbine mechanical efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems In nuclear chain fission reaction each neutron causing fission produces no new neutron. one new neutron. at least one new neutron. less than one new neutron. no new neutron. one new neutron. at least one new neutron. less than one new neutron. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A CT is connected in ___________________ with the line. across. series. both A and B. not connected. across. series. both A and B. not connected. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 1 + j 4 A 1 + j 2 A -2 - j 1 A 5 + j 7 A 1 + j 4 A 1 + j 2 A -2 - j 1 A 5 + j 7 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems In which of the following given faults, all the sequence currents are equal? LL LG LLG LLL LL LG LLG LLL 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 ? 100 : 5 / √3. 150 : 4 / √3. 120 : 6 / √3. 200 : 5 / √3. 100 : 5 / √3. 150 : 4 / √3. 120 : 6 / √3. 200 : 5 / √3. ANSWER DOWNLOAD EXAMIANS APP
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