Mechanical Engineering Questions And Answers :: Ic Engines: part1



Mechanical Engineering : Ic Engines QUESTIONS AND ANSWERS :: part1 : 16 to 20

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

16.Fuel oil consumption guarantees for I .C. engine are usually based on

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

17.The fuel in diesel engine is normally injected at pressure of

5-10 kg/cm2
20-25 kg/cm2
60-80 kg/cm2
90-130 kg/cm2
150-250 kg/cm2

18.Does the supply of scavenging air at a density greater than that of atmosphere mean engine is supercharged ?

yes
no
to some extent
unpredictable
depends on other factors.

19.In case of gas turbines, the gaseous fuel consumption guarantees are based on

high heat value
low heat value
net calorific value
middle heat value
calorific value.

20.The pressure and temperature at the end of compression stroke in a petrol engine are of the order of

4 - 6 kg/cm2 and 200 - 250�C
6 - 12 kg/cm2 and 250 - 350�C
12 - 20 kg/cm2 and 350 - 450�C
20 - 30 kg/cm2 and 450 - 500�C
30 - 40 kg/cm2 and 500 - 700�C.

More Ic Engines QUESTIONS AND ANSWERS available in next pages

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