Which of the following matrix is used for load flow studies? Unit matrix null matrix Z bus matrix Y bus matrix TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following method is/are more reliable? Fast Decoupled Load Flow (FDLF) method All of these Gauss-Siedel (GS) method Newton Raphson (NR) method TRUE ANSWER : ? YOUR ANSWER : ?
The conductor of a 10 Km long single phase, two wire line are separated by a distance of 1.5 m the diameter of each conductor the inductance of the circuit is 25.8 mH. 21.2 mH. 23.33 mH. 23.8 mH. TRUE ANSWER : ? YOUR ANSWER : ?
A generating station which has a high investment cost and low operating cost is usually operated as a Base load station. None of above. Peak load station. Minimum load station. TRUE ANSWER : ? YOUR ANSWER : ?
A transmission line has a surge impedance of 400 Ω is connected with the cable having surge impedance of 40 Ω, a surge magnitude of 100 kV is travelling from the transmission line towards the cable. Find the reflected voltage? -18.18 kV 81.82 kV -81.82 kV 18.18 kV TRUE ANSWER : ? YOUR ANSWER : ?
A Pelton wheel turbine having a rated speed of 300 rpm is connected to an alternator to produce power at 50 Hz. The number of poles required in the alternator is 4 20 8 10 TRUE ANSWER : ? YOUR ANSWER : ?
A 100 Km long transmission line is loaded at 110 kV. If the loss of line is 5 MW and the load is 150 VA the resistance of the line is 4.65 Ω / phase. 8.06 Ω / phase. 2.26 Ω / phase. 6.06 Ω / phase. TRUE ANSWER : ? YOUR ANSWER : ?
Which of following power plants is free from environmental problem Steam. Diesel engine. Nuclear. Hydroelectric. TRUE ANSWER : ? YOUR ANSWER : ?
For harnessing low variable water heads, the suitable hydraulic turbine with reaction and adjustable vanes is Kaplan. Francis. Impeller. Pelton. TRUE ANSWER : ? YOUR ANSWER : ?
Half life is defined as the time required for one half of isotope to decay. none of above. the time required to spiliting of a heavy nucleus. the time required for full of atoms in a specimen disintegrate. TRUE ANSWER : ? YOUR ANSWER : ?