CLIENT SERVER DATABASE QUIZ

A generator has a rating of 10 MVA, 5 kV has a reactance of 0.02 pu. Find the reactance at a new base values of 50 MVA, 10 kV?

0.25

0.025

0.02

0.05

TRUE ANSWER : ?
YOUR ANSWER : ?

Which one of following fuels is used by slow thermal nuclear reaction for power generation

U235.

U238.

Th232.

Pu239.

TRUE ANSWER : ?
YOUR ANSWER : ?

A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand?

1 cm

15 cm

5 cm

1.5 cm

TRUE ANSWER : ?
YOUR ANSWER : ?

For flat voltage profile system, voltage regulation is

100%

50%

any of the above

0%

TRUE ANSWER : ?
YOUR ANSWER : ?

Zero sequence currents can flow from a line into a transformer bank if the windings are in

star / grounded star.

ground star / delta.

delta / delta.

delta / star.

TRUE ANSWER : ?
YOUR ANSWER : ?

For loss less line, find the ratio of length to the wave length of a signal for a phase shift of 0.05 radians?

8 × 10³

2 × 10-3

7.95 × 10-3

7.95 × 10³

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following statement is/are true?Zn

The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit

nether 1 nor 2

The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit

both 1 and 2

TRUE ANSWER : ?
YOUR ANSWER : ?

The Y bus matrix of a 100 bus interconnected system is 90% sparse. Then find the number of non zero elements in the Y bus matrix?

1000

10

9000

90

TRUE ANSWER : ?
YOUR ANSWER : ?

In thermal power plants the size of coal after crushing

300 mm.

20 - 25 mm.

40 mm.

200 - 205 mm.

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of following are the fertile materials

U238 and Pu239.

U233 and Pu239.

U238 and Th239.

U238 and Th232.

TRUE ANSWER : ?
YOUR ANSWER : ?