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Compressors, Gas Turbines And Jet Engines MCQ Questions & Answers | Mechanical Engineering

Learn Compressors, Gas Turbines And Jet Engines MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Compressors, Gas Turbines And Jet Engines MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-5 section-3

Each section contains 100 MCQs on Compressors, Gas Turbines and Jet Engines .
41
Pressure ratio in gas turbines is the ratio of
Discuss
Answer & Solution
Answer: Option B
Solution:
Pressure ratio in gas turbines is the ratio of Highest pressure to exhaust pressure
42
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of
Discuss
Answer & Solution
Answer: Option D
Solution:
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of 99%
43
The compression ratio in a gas turbine is of the order of
Discuss
Answer & Solution
Answer: Option C
Solution:
The compression ratio in a gas turbine is of the order of 8 : 1
44
The pressure ratio in gas turbines is of the order of
Discuss
Answer & Solution
Answer: Option C
Solution:
The pressure ratio in gas turbines is of the order of 61 : 1
45
Volumetric efficiency of air compressors is of the order of
Discuss
Answer & Solution
Answer: Option D
Solution:
Volumetric efficiency of air compressors is of the order of 70 - 90%
46
The air-fuel ratio in gas turbines is of the order of
Discuss
Answer & Solution
Answer: Option D
Solution:
The air-fuel ratio in gas turbines is of the order of 50 : 1.
47
Maximum delivery pressure is a rotary air compressor is of the order of
Discuss
Answer & Solution
Answer: Option B
Solution:
Maximum delivery pressure is a rotary air compressor is of the order of 10 kg/cm2.
48
Maximum temperature in a gas turbine is of the order of
Discuss
Answer & Solution
Answer: Option A
Solution:
Maximum temperature in a gas turbine is of the order of 700°C
49
The maximum compression ratio in an actual single stage axial flow compressor is of the order of
Discuss
Answer & Solution
Answer: Option A
Solution:
The maximum compression ratio in an actual single stage axial flow compressor is of the order of 1 : 1.2
50
The type of rotary compressor used in gas turbines, is of
Discuss
Answer & Solution
Answer: Option B
Solution:
The type of rotary compressor used in gas turbines, is of Axial flow type