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ME Set-3
IC Engines
7

IC Engines MCQ with Answers

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

IC Engines MCQ with Answers

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Related IC Engines MCQ with Answers

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?

10) If the intake air temperature of I.C. engine increases, its efficiency will

increase

decrease

remain same

unpredictable

Answer is:

decrease

11) All heat engines utilize

low heat value of oil

high heat value of oil

net claorific value of oil

calorific value of fuel

Answer is:

low heat value of oil

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