Question 71 : Which type of compressor is used in a gas turbine plant?
1. Reciprocating compressor
2. Screw compressor
3. Multistage axial flow compressor
4. Either (a) & (b)
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Question 72 : Which of these is not a part of a Gas Turbine Plant?
1. Compressor
2. Gas Turbine
3. Combustion chamber
4. Boiler
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Question 73 : In case of mercury-steam-sulphur dioxide cycle, which is the bottoming fluid?
1. Mercury
2. Steam
3. Sulphur dioxide
4. Cannot say
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Question 74 : In centrifugal compressor, the diffuser converts
1. Kinetic energy into pressure energy
2. Pressure energy into Kinetic energy
3. Kinetic energy into Mechanical energy
4. Mechanical energy into Kinetic energy
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Question 75 : What is the effect of superheated steam on efficiency of Rankine cycle?
1. efficiency of Rankine cycle decreases with increase in superheat of the steam
2. efficiency of Rankine cycle increases with increase in superheat of the steam
3. efficiency of Rankine cycle is not affected by change in superheat of the steam
4. none of the mentioned
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Question 76 : In an electron beam, the average kinetic energy of an electron is given by
1. 2KT
2. 3KT
3. 1.5KT
4. 2.5KT
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Question 77 : Gas turbine is shut down by
1. Turning off starter
2. Stopping the compressor
3. Fuel is cut off from the combustor
4. Any of the mentioned
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Question 78 : What happens to the availability in a combined cycle plant?
1. decreases
2. increases
3. remains same
4. cannot say
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