Steam and Gas Turbines Mock Test 2

10%

Question 1 of 10

1. During overload of turbines __________ are used.

nozzle valves

none of the mentioned

throttle governing

bypass governing

Question 1 of 10

Question 2 of 10

2. A typical heat exchanger removing heat from compressor is called as intercooler.

True

False

Question 2 of 10

Question 3 of 10

3. In actual gas turbine, mechanical energy is converted into heat by _________

none of the mentioned

no mechanical energy is converted into heat energy

friction between piston and cylinder

frictional losses in compressor

Question 3 of 10

Question 4 of 10

4. How is it advantageous to expand steam at 250 deg C in a turbine as compared to expanding saturated steam in similar turbine?

Enhances the thermal efficiency of the cycle

All of the mentioned

Increases the mean temperature of heat addition

Reduces the mechanical damage caused to turbine blades due to wet steam

Question 4 of 10

Question 5 of 10

5. In a closed cycle gas turbine heat is supplied from ____________

combustion chamber

external source

internal source

none of the mentioned

Question 5 of 10

Question 6 of 10

6. In Stirling engine, pistons are arranged in __________

none of the mentioned

parallel position

co-linear position

linear position

Question 6 of 10

Question 7 of 10

7. Ericsson cycle is also known as external combustion engine.

False

True

Question 7 of 10

Question 8 of 10

8. Compression with intercooler causes ________

none of the mentioned

increases the overall efficiency

decrease in the compressor work

increase in the compressor work

Question 8 of 10

Question 9 of 10

9. A boiler feed pump is used to raise ___________

None of the mentioned

Static pressure of feedwater

Static & Dynamic pressure of feedwater

Dynamic pressure of feedwater

Question 9 of 10

Question 10 of 10

10. Knocking of the fuel can be reduced by _________

decreasing air intake pressure

none of the mentioned

using intercooler

increasing air intake

Question 10 of 10