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Heat Engines MCQs | Page - 10

Dear candidates you will find MCQ questions of Heat Engines here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

M

Mr. Dubey • 51.43K Points
Coach

Q. 91) The steam pressure in a pass out turbine may be expected to be in the range

(A) 10 kg/cm2 to 20 kg/cm2
(B) 100 kg/cm2 to 150 kg/cm2
(C) 150 kg/cm2 to 300 kg/cm2
(D) 75 kg/cm2 to 100 kg/cm2
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Mr. Dubey • 51.43K Points
Coach

Q. 92) A regenerator in a gas turbine

(A) Reduces heat loss in exhaust
(B) permits use of higher compression ratio
(C) Improves thermal efficiency
(D) Permits use of fuels of inferior quality
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M

Mr. Dubey • 51.43K Points
Coach

Q. 93) Higher proportion of residual gases in the cylinder would mean

(A) Higher volumetric efficiency
(B) Lower volumetric efficiency
(C) No change in volumetric efficiency
(D) Depends on other factors
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Mr. Dubey • 51.43K Points
Coach

Q. 94) Low grade fuels have

(A) Low moisture content
(B) Low ash content
(C) Low calorific valve
(D) Low carbon content
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Mr. Dubey • 51.43K Points
Coach

Q. 95) A gas turbine cycle with regenerator has a thermal efficiency of 26%. If intercooler and reheater are also introduced what could be expected thermal efficiency

(A) 50%
(B) 10%
(C) 60%
(D) 30%
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Mr. Dubey • 51.43K Points
Coach

Q. 96) Free piston engines find application in

(A) Compressed air supply
(B) Mining installations
(C) Gas turbines
(D) Supercharging of diesel engines
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Mr. Dubey • 51.43K Points
Coach

Q. 97) In case of supersonic flow through the nozzle, when the cross-section increases in the direction of flow

(A) The velocity will decrease in the direction of flow
(B) The pressure will increase in the direction of flow
(C) The velocity will increase while the pressure will decrease in the direction of flow
(D) The velocity will decrease while the pressure will increase in the direction of flow
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Mr. Dubey • 51.43K Points
Coach

Q. 98) The performance of air compressor at high altitudes as compared to that at sea level will be

(A) Will depend upon temperature of air
(B) Will depend on type of compressor
(C) Better
(D) Inferior
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Mr. Dubey • 51.43K Points
Coach

Q. 99) To avoid moisture trubles, the branch connection from compressed air line are taken from

(A) Top side
(B) Bottom side
(C) Left side
(D) Any side
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Mr. Dubey • 51.43K Points
Coach

Q. 100) Which turbine has identical fixed and moving blades

(A) Carbon dioxide
(B) De Laval turbine
(C) Parson's reaction turbine
(D) Rateau's turbine
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