Mechanical Engineering Questions And Answers :: Ic Engines: part2



Mechanical Engineering : Ic Engines QUESTIONS AND ANSWERS :: part2 : 11 to 15

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

11.The rating of a diesel engine, with increase in air-intlet temperature, will

increase linearly
decrease linearly
increase parabolically
decrease parabolically
first decrease linearly and then increase parabolically.

12.In a typical medium speed, 4-stroke cycle diesel engine

fuel injection starts at 10� before to dead center and ends at 20� after tor dead center
fuel injection starts at top dead center and ends at 20� after top dead center
fuel injection starts at just before top dead center and ends just after top dead center
may start and end anywhere
none of the above.

13.Compression loss in I.C engines occurs duto

leaking piston rings
use of thick head gasket
clogged air-inlet slots
increase in clearance volume caused b bearing-bushing wear
all of the above.

14.In a typical medium speed 4-stroke cycle diesel engine

compression starts at 35� after bottom dead center and ends at top dead center
compression starts at bottom dead center and ends at top dead center
compression starts at 10� before bottom dead center and, ends just before top dead center
may start and end anywhere
none of the above.

15.If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the

exhaust will be smoky
piston rings would stick into piston grooves
exhaust temperature will be high
engine starts overheating
scavenging occurs.

More Ic Engines QUESTIONS AND ANSWERS available in next pages

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