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Engineering
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ME Set-3
IC Engines
5

IC Engines MCQ with Answers

5) Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged ?

yes

no

to some extent

unpredictable

Answer is:

no

IC Engines MCQ with Answers

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Related IC Engines MCQ with Answers

6) The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called

net efficiency

efficiency ratio

relative efficiency

overall efficiency

Answer is:

relative efficiency

7) Compression ratio of I.C. engines is

the ratio of volumes of air in cylinder before compression stroke and after compression stroke

volume displaced by piston per stroke and clearance volume in cylinder

ratio of pressure after compression and before compression

swept volume/cylinder volume

Answer is:

the ratio of volumes of air in cylinder before compression stroke and after compression stroke

8) The air standard efficiency of an Otto cycle compared to diesel cycle for the given compression ratio is

same

less

more

more or less depending on power rating

Answer is:

more

9) The calorific value of gaseous fuels is expressed in terms of

kcal

kcal/kg

kcal/m2

kcal/n?

Answer is:

kcal/n?

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