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Heat Engines MCQs | Page - 9

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. 81) Movement of air inside engine cylinder does not help in

(A) Distribution of fuel
(B) Mixing of fuel with air
(C) Reduction of after burning
(D) Reducing noise
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Mr. Dubey • 51.43K Points
Coach

Q. 82) In a Lancashire boiler, the economiser is located

(A) Before air preheater
(B) After air preheater
(C) Between feed pump and boiler
(D) At any of the above locations
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M

Mr. Dubey • 51.43K Points
Coach

Q. 83) Iso-octane has octane number of

(A) 100
(B) 0
(C) 50
(D) 80 to 85
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M

Mr. Dubey • 51.43K Points
Coach

Q. 84) Freezing point of petrol is around

(A) ?4?C
(B) ?30?C
(C) 10?C
(D) ?13?C
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M

Mr. Dubey • 51.43K Points
Coach

Q. 85) 1 Torr is equivalent to

(A) 1 mm Hg
(B) 13.6 cm of water column
(C) 760 mm of water
(D) 760 mm of Hg
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M

Mr. Dubey • 51.43K Points
Coach

Q. 86) The most effective air cleaner for diesel engines is

(A) Whirl type
(B) Oil bath type
(C) Dry type
(D) Rope type
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M

Mr. Dubey • 51.43K Points
Coach

Q. 87) An economiser is installed in a boiler plant primarily to

(A) Increase steam pressure
(B) Increase rate of steam evaporation
(C) Superheat the steam
(D) Reduce fuel consumption
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Mr. Dubey • 51.43K Points
Coach

Q. 88) The equilibrium conditions between supersaurated vapour and a cooled liquid surface are expressed in

(A) Dalton's equation
(B) Napier's equation
(C) Kelvin Helmhotz equation
(D) Clapcyron's equation
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M

Mr. Dubey • 51.43K Points
Coach

Q. 89) Most of the heat generated in I.C. engines is transferred to surrounding medium by

(A) Conduction only
(B) Convection only
(C) Conduction and convection
(D) Radiation only
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M

Mr. Dubey • 51.43K Points
Coach

Q. 90) Vapour lock is

(A) Supply of liquid fuel particles to engine in maixture
(B) Excess fuel supply to engine due to faster evaporation
(C) Complete or partial stoppage of fuel supply due to vaporisation of fuel in supply steam
(D) Lock of vaporization of fuel to atomspheric pressure
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