IC Engines and Nuclear Power Plants - Data Intensity 4 | Multiple Questions and Answers

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IC Engines and Nuclear Power Plants - Data Intensity 4 Multiple Questions and Answers.

31.	In a four stroke cycle petrol engine, , the compression

	A.	starts at 40� after bottom dead centre and ends at 30� before top dead centre
	B.	starts at 40� before bottom dead centre and ends at 30� after bottom dead centre
	C.	starts at bottom dead centre and ends at top dead centre
	D.	may start and end anywhere

32.	During idling, a petrol engine requires __________ mixture.

	A.	lean
	B.	rich
	C.	chemically correct
	D.	none of above

33.	In natural uranium, the constituents of three naturally occuring isotopes are

	A.	U234 = 0.006%, U235 = 0.712% and U238 = 99.282%
	B.	U234 = 0.712%, U235 = 0.006% and U238 = 99.282%
	C.	U234 = 99.282%, U235 = 0.006% and U238 = 0.712%
	D.	U234 = 0.006%, U235 = 99.282% and U238 = 0.712%

34.	Stoichiometric ratio is

	A.	chemically correct air-fuel ratio by weight
	B.	chemically correct air-fuel ratio by volume
	C.	actual air-fuel ratio for maximum efficiency
	D.	none of the above

35.	Which of the following fuel has little tendency towards detonation ?

	A.	Benzene
	B.	Iso-octane
	C.	Normal heptane
	D.	Alcohol

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» IC Engines and Nuclear Power Plants - Data Intensity 1

» IC Engines and Nuclear Power Plants - Data Intensity 2

» IC Engines and Nuclear Power Plants - Data Intensity 3

» IC Engines and Nuclear Power Plants - Data Intensity 4

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