Gas turbine power plants for maximum efficient may have Heat exchangers. All of above. Reheating. Multistage compression. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following grounding is not practically preferred for protection of equipments? resistance grounding All of these isolated grounding reactance grounding TRUE ANSWER : ? YOUR ANSWER : ?
Maximum efficiency of modern coal fired steam raising thermal power plants is restricted to about 035 (a low value), mainly because of high energy loss from turbine exhaust to condenser. high energy loss in boiler. low alternative efficiency. low steam turbine mechanical efficiency. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements is/are true? By increasing of temperature, neither 1 nor 2 sag increase tension decrease both 1 and 2 TRUE ANSWER : ? YOUR ANSWER : ?
Bundled conductors are used for EHV transmission lines primarily for reducing the copper loss surge impedance of the line corona loss voltage drop across the line TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statements is/are true? In case of parallel transmission lines fault current reduces both 1 and 3 stability increases fault current increases TRUE ANSWER : ? YOUR ANSWER : ?
A transmission line has (2 + j4)Ω impedance, 100 MVA and base voltage is 10 KV. Find the per unit impedance value of transmission line? (4 + j8 ) pu (1 + j2 ) pu (2 + j4 ) pu (0.5 + j1 ) pu TRUE ANSWER : ? YOUR ANSWER : ?
An impulse turbine operates by initial complete conversion to kinetic energy. makes use of a draft tube. always operates submerged. is most suited for low head and high discharge power plants. TRUE ANSWER : ? YOUR ANSWER : ?
A steam power generation has an overall efficiency of 20 %. 0.6 Kg of coal is burnt per kWh of electrical energy generated. Calculated the calorific value of fuel 7268.45 KCal / Kg. 7000 KCal / Kg. 7562 KCal / Kg. 7166.67 KCal / Kg. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following circuit breakers produce least arc energy? Air break CB. Air blast CB. Plain oil CB. Minimum oil CB. TRUE ANSWER : ? YOUR ANSWER : ?