Question 31 : What is the difference between a Rankine cycle & a Brayton cycle?
1. working fluid in a Brayton cycle undergoes phase change while it doesn't in Rankine cycle
2. working fluid in a Brayton cycle doesn't undergo phase change while it does in Rankine cycle
3. both are same
4. none of the mentioned
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Question 32 : The following method(s) can be used to improve the thermal efficiency of open cycle gas turbine plant
1. inter-cooling
2. Reheating
3. Regeneration
4. All of the mentioned
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Question 33 : The percentage of total energy input appearing as network output of the cycle
1. Thermal efficiency
2. Combustion efficiency
3. Engine efficiency
4. Compression efficiency
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Question 34 : Which of the following is a type of Gas Turbine Plant?
1. Single Acting
2. Double Acting
3. Open
4. None of the mentioned
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Question 35 : What is the importance of the freezing point of the working fluid in the vapour power cycle?
1. freezing point of working fluid should be below the room temperature
2. freezing point of working fluid should be above the room temperature
3. freezing point of working fluid should be equal to the room temperature
4. does not have any importance
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Question 36 : The 'work ratio' increases with
1. increase in turbine inlet pressure
2. decrease in compressor inlet temperature
3. decrease in pressure ratio of the cycle
4. all of the mentioned
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Question 37 : The maximum percentage gain in Regenerative feed heating cycle thermal efficiency
1. increases with number of feed heaters increasing
2. decreases with number of feed heaters increasing
3. remains same unaffected by number of feed heaters
4. none of the mentioned
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Question 38 : In centrifugal compressor, power input varies as
1. directly as the speed ratio
2. the square of speed ratio
3. the cube of the speed ratio
4. any of the mentioned
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Question 39 : Apart from mercury & steam, which of these is a component of tertiary cycle?
1. nitrogen di-oxide
2. water
3. carbon di-oxide
4. sulphur di-oxide
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Question 40 : The major field(s) of application of gas turbine is (are)
1. Aviation
2. Oil and gas industry
3. Marine propulsion
4. All of the mentioned
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