Internal Combustion Engines (I.C. Engines) MCQs | Page - 5

Dear candidates you will find MCQ questions of Internal Combustion Engines (I.C. 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 • 52.26K Points
Coach

Q. Hydrocarbons are decomposed into smaller hydrocarbons by

(A) reforming
(B) refining
(C) cracking
(D) polymerization
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M

Mr. Dubey • 52.26K Points
Coach

Q. The molecular structure of the straight-run gasoline is changed by

(A) cracking
(B) reforming
(C) reining
(D) boiling
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M

Mr. Dubey • 52.26K Points
Coach

Q. For SI engines fuels most preferred are

(A) aromatics
(B) parafins
(C) olefins
(D) napthenes
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M

Mr. Dubey • 52.26K Points
Coach

Q. For CI engine fuels most preferred are

(A) napthenes
(B) paraffins
(C) olefins
(D) aromatics
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M

Mr. Dubey • 52.26K Points
Coach

Q. Octane number of iso-octane is

(A) 0
(B) 30
(C) 60
(D) 100
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M

Mr. Dubey • 52.26K Points
Coach

Q. Ignition quality of diesel fuel is indicated by its

(A) octane number
(B) cetane number
(C) fash point
(D) fire point
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M

Mr. Dubey • 52.26K Points
Coach

Q. Flash point of fuel oil is

(A) minimum temperature to which1 oil is heated in order to give off inflammable vapours in Sufficient quantity to ignite momentarily when brought in contact with a flame
(B) temperature at which it solidifies or congeals
(C) temperature at which it catches fire without external aid
(D) indicated by 90% distillation temperature, i.e. when 90% of sample oil has distilled off
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M

Mr. Dubey • 52.26K Points
Coach

Q. Gasohol is a mixture of

(A) 90% ethanol + 10% gasoline
(B) 10% ethanol +90% gasoline
(C) 40% ethanol + 60% gasoline
(D) 50% ethanol +50% gasoline
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M

Mr. Dubey • 52.26K Points
Coach

Q. Stoichiometric air-fuel ratio of petrol is roughly

(A) 50:1
(B) 25:1
(C) 15:1
(D) 1:1
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M

Mr. Dubey • 52.26K Points
Coach

Q. Venturi in the carburetor results in

(A) decrease of air velocity
(B) increase of air velocity
(C) decrease of fuel flow
(D) increase of manifold vacuum
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