Mechanical Engineering Questions And Answers :: Ic Engines: part1



Mechanical Engineering : Ic Engines QUESTIONS AND ANSWERS :: part1 : 6 to 10

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :

6.The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed

80�C
120�C
180�C
240�C
320�C.

7.In a diesel engine, the fuel is ignited by

spark
injected fuel
heat resulting from compressing air that is supplied for combustion
ignitor
combustion chamber.

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
unpredictable.

9.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%
27%.

10.All heat engines utilize

low heat value of oil
high heat value of oil
net claorific value of oil
calorific value of fuel
all of the above.

More Ic Engines QUESTIONS AND ANSWERS available in next pages

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