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Engineering
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ME Set-3
IC Engines
96

IC Engines MCQ with Answers

96) A stoichiometric air-fuel ratio is

chemically correct mixture

lean mixture

rich mixture for idling

rich mixture for over loads

Answer is:

chemically correct mixture

IC Engines MCQ with Answers

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Related IC Engines MCQ with Answers

97) In a naturally aspirated diesel engine, the air is supplied by

a supercharger

a centrifugal blower

a vacuum chamber

an injection tube

Answer is:

a vacuum chamber

98) In loop scavenging, the top of the piston is

flat

contoured

slanted

depressed

Answer is:

contoured

99) In the crankcase method of scavenging, the air pressure is produced by

supercharger

centrifugal pump

natural aspirator

movement of engine piston

Answer is:

movement of engine piston

100) If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the %age increase in efficiency will be

2%

4%

8%

14%

Answer is:

14%

If the compression ratio of an engine working on Otto cycle is increased from 5 to 7, the %age increase in efficiency will be

IC Engines MCQ with Answers

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