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ME Set-1
IC Engines and Nuclear Power Plants
171

IC Engines and Nuclear Power Plants MCQ with Answers

171) The __________ engines can work on very lean mixture of fuel.

spark ignition

compression ignition

mixed engine

none of these

Answer is:

compression ignition

IC Engines and Nuclear Power Plants MCQ with Answers

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Related IC Engines and Nuclear Power Plants MCQ with Answers

172) The ignition quality of petrol is expressed by

cetane number

octane number

calorific value

all of these

Answer is:

octane number

173) The fuel valve in a four stroke cycle diesel engine

opens at 15 Degree after top dead centre and closes at 20 Degree before bottom dead centre

opens at 15 Degree before top dead centre and closes at 20 Degree after top dead centre

opens at top dead centre and closes at bottom dead centre

may open and close anywhere

Answer is:

opens at 15 Degree before top dead centre and closes at 20 Degree after top dead centre

174) In petrol engines, advancing of the spark timing will __________ the knocking tendency.

not effect

decrease

increase

none of these

Answer is:

increase

175) The knocking tendency in compression ignition engines for a given fuel will be

enhanced by decreasing compression ratio

enhanced by increasing compression ratio

dependent on other factors

none of the above

Answer is:

enhanced by decreasing compression ratio

IC Engines and Nuclear Power Plants MCQ with Answers

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