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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.

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Mr. Dubey • 51.43K Points
Coach

Q. 41) Turbidity in boiler feed water causes

(A) Sludge
(B) Embrittlement
(C) Corrosion
(D) Scale
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Mr. Dubey • 51.43K Points
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Q. 42) A mixture containing 60% cetane and 40% Iso-octane will have

(A) Cetane number 60
(B) Cetane number 40
(C) Octane number 60
(D) None of the above
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Mr. Dubey • 51.43K Points
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Q. 43) A vacuum of 712 mm was obtained with the barometer reading 753 mm of mercury. The corrected vacuum to a standard barometer of 760 would be

(A) 719 mm Hg
(B) 753 mm Hg
(C) 706 mm Hg
(D) 760 mm Hg
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Mr. Dubey • 51.43K Points
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Q. 44) Flash point for diesel fuel oil should be

(A) Minimum 49?C
(B) Maximum 49?C
(C) Maximum 100?C
(D) Maximum 200?C
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Mr. Dubey • 51.43K Points
Coach

Q. 45) The knocking tendency in a compression ignition engine for a given fuel will

(A) Enhance by reducing compression ratio
(B) Enhance by increasing compression ratio
(C) Depend on other factors
(D) Increase to certain limits and then no change
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Mr. Dubey • 51.43K Points
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Q. 46) A steam turbine in which a part of the steam turbine after partial expansion is used for process heating and the remaining steam is further expanded for power generation, is known as

(A) Impulse turbine
(B) Regenerative turbine
(C) Back pressure turbine
(D) Pass out turbine
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Mr. Dubey • 51.43K Points
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Q. 47) A De-Laval turbine is

(A) Multiple stage reaction turbine
(B) Single rotor impulse turbine
(C) Multiple rotor reaction turbine
(D) Velocity compounded impulse turbine
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Mr. Dubey • 51.43K Points
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Q. 48) In a cut off covered steam engine

(A) Admission pressore remains constant while cut off is varied
(B) Admission pressure is reduced while cut off remains unaltered
(C) Admission pressure and cut off both are varied
(D) Neither admission pressure nor cut off is varied
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Mr. Dubey • 51.43K Points
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Q. 49) Which one of the following is a safety device on a compressor?

(A) Intercooler relief valve
(B) Over pressure shut down
(C) Strainer
(D) Relief valve
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Mr. Dubey • 51.43K Points
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Q. 50) Naphtha is used as

(A) Lubricant for turbines
(B) Lubricant for slow speed engines
(C) Fuel for marine engines
(D) Fuel for furnaces
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