The presence of earth in case of overhead lines decrease capacitance increase capacitance increase inductance decrease inducatance TRUE ANSWER : ? YOUR ANSWER : ?
The function of a surge tank is to relieve water hammer pressure in the penstock. none of above. supply water at constant pressure. produce surge in the pipeline. TRUE ANSWER : ? YOUR ANSWER : ?
The per unit value of a 2 ohm resistor at 100 MVA and 10 kV base voltage is 0.2 pu 0.5 pu 4 pu 2 pu TRUE ANSWER : ? YOUR ANSWER : ?
A cable has inductance of 0.22 mH per km and capacitance of 0.202 µF per km. The surge impedance of the cable is 33 Ω 40 Ω 28 Ω 52 Ω TRUE ANSWER : ? YOUR ANSWER : ?
The ratio of reset to pick up current for an induction cup relay is approximately 1.35. 1.0. 0.99. 0.75. TRUE ANSWER : ? YOUR ANSWER : ?
Surge impedance loading can be increased by increasing of voltage level increasing of capacitance value increasing of inductance value both 1 and 2 TRUE ANSWER : ? YOUR ANSWER : ?
Which of following generating plants has the minimum operating cost Hydroelectric plant. Nuclear plant. Diesel plant. Steam plant. TRUE ANSWER : ? YOUR ANSWER : ?
Pelton turbine is a ----------- turbine inward radial flow impulsive axial flow any of the above TRUE ANSWER : ? YOUR ANSWER : ?
The fact that current density is higher at the surface when compared to centre is known as carona All of these skin effect proximity effect TRUE ANSWER : ? YOUR ANSWER : ?
For 66 kV lines the number of insulator discs of each 11 kV used are 6 3 12 5 TRUE ANSWER : ? YOUR ANSWER : ?