1. Gas turbines are used as prime movers
(A) In thermal power station
(B) In gas power station
(C) Both a & b
(D) None of these
2. A gas turbine consists of
(A) All of these
(B) Combustion chamber
(C) Turbine
(D) Compressor
3. Turbines use in gas turbine plants are
(A) Impulse
(B) Reaction
(C) Both a & b
(D) None of these
4. Gas turbine and compressor are usually mounted
(A) Separately
(B) Away from each other
(C) Nearly
(D) On same shaft
5. The second name of combustion chamber is
(A) Burner
(B) Combustor
(C) Fuel pump
(D) Stove
6. Advantage/s of gas turbine power station is/are
(A) Both a & b
(B) Compact in size
(C) High Efficiency
(D) Simple design
7. The disadvantage/s of gas turbine power plants is/are
(A) Produces noise
(B) Both a & b
(C) Low efficiency
(D) Low operating speed of turbine
8. Compressor used in gas turbine is ----multistage compressor
(A) All of these
(B) Rotary
(C) Axial
(D) Centrifugal
9. Number of air inlet in centrifugal compressor is/are
(A) One
(B) Two
(C) One or Two
(D) Always more than two
10. Gas plant has
(A) All of these
(B) High running cost
(C) Limited per unit capacity
(D) High Efficiency
11. The place in which fuel is burned is called
(A) Boiler
(B) Burner
(C) Gas turbine
(D) Combustion Chamber or combustor
12. After mixing fuel with this, then it is used in gas turbine power plant
(A) Common air
(B) Pure oxygen
(C) Hydrogen
(D) SF6
13. When air is compressed through compressor in gas turbine plant, then it is increased
(A) Temperature
(B) Both a & b
(C) Pressure
(D) Volume
14. Temperature of hot gases in combustion chamber of gas turbine is
(A) 700 degree Fahrenheit
(B) 3000 degree Fahrenheit
(C) 1400 degree Fahrenheit
(D) 2100 degree Fahrenheit
15. Blades of gas turbine are manufactured from this material
(A) High nickel alloy steel
(B) Carbon steel
(C) Pure copper
(D) Stainless Steel
16. The working of simple gas power plant depends on
(A) Open Cycle
(B) Both a & b
(C) Closed Cycle
(D) None of these
17. A cycle in which same air or gas is used again and again in compressor, is called
(A) Open Cycle
(B) Both a & b
(C) Closed Cycle
(D) None of these
18. This is not used in Open cycle gas turbine power plant
(A) Heat Exchanger
(B) Compressor
(C) Normal Air
(D) Gaseous Fuel
19. It is essential for closed cycle power plant
(A) Large Heat Exchanger
(B) More cooling water
(C) Both a & b
(D) Large Air
20. Closed cycle gas turbine plant in comparison of open cycle plant has
(A) More complex
(B) Large size
(C) Both a & b
(D) Simple
21. In combined cycle, gases exhaust from gas turbine are used in
(A) Boiler
(B) Turbine
(C) Compressor
(D) Generator
22. Combined cycle power plants are more suitable for following loads
(A) Both a & b
(B) Peak Load
(C) Base Load
(D) Intermediate Load
23. In combined cycle, which another plant is installed with gas plant
(A) None of these
(B) Pump Storage Hydel Plant
(C) Diesel engine plant
(D) Steam Turbine Plant
24. The efficiency of gas turbine plant increases with the use of
(A) Combustor
(B) Compressor
(C) Combined Cycle
(D) Generator
25. Hot gases exhaust from gas turbine plant consists of following
(A) Nitrogen Oxides
(B) Sulphur Dioxide
(C) All of these
(D) Carbon monoxide