Power Systems(Engineering > Electrical Engineering ) Questions and Answers
Question 1. India’s largest thermal power station is located at
Neyveli.
Sarni.
Kota.
Chandrapur.
Explanation:-
Answer: Option D. -> Chandrapur.
Question 2. Tarapur nuclear power plant has which type of reactor?
Boiling water type.
CANDU type reactors.
None of these.
Pressurized water reactors.
Explanation:-
Answer: Option A. -> Boiling water type.
Question 3. Which of the following rotor is used in thermal power plants?
squirrel cage rotor
cylindrical rotor
salient pole rotor
either of these
Explanation:-
Answer: Option B. -> cylindrical rotor
Question 4. Four identical alternators each are rated for 20 MVA, 11 KV having a subtransient reactance of 16% are working in parallel. The short circuit level at the busbar is
400 MVA
500 MVA
125 MVA
100 MVA
Explanation:-
Answer: Option B. -> 500 MVA
Question 5. Length of the cable is doubled, its capacitance C will be
unchanged.
one-fourth.
one-half.
doubled.
Explanation:-
Answer: Option D. -> doubled.
Question 6. Oxide film arrestor has which of the following properties?
It is expensive.
Both A and B.
Installed at points of transmission line where daily visit is difficult.
Does not require daily charging.
Explanation:-
Answer: Option B. -> Both A and B.
Question 7. What is the total installed power capacity (MW) in West Bengal as published by ministry of power in 2011?
15515.22.
6114.05.
8113.27.
10000.32.
Explanation:-
Answer: Option C. -> 8113.27.
Question 8. What should be the minimum depth (in metre)of cable trench to dug for laying of 1.1 kV?
1.20.
1.05.
0.75.
0.90.
Explanation:-
Answer: Option C. -> 0.75.
Question 9. NTPC (National Thermal Power Cooperation) has its only thermal power generating unit in West Bengal at
Bakreshwar.
Durgapur.
Farakka.
Katwa.
Explanation:-
Answer: Option C. -> Farakka.
Question 10. If the fault current is 2000 A, the relay setting is 50% and CT ratio is 400 : 5, then plug setting multiplier will be
