MECHANIC DIESEL THEORY

MULTIPLE CHOICE QUESTIONS (MCQ) SEMESTER - II JULY 2016

The Petrol Engine works on

the principle of ..........

a) Otto Cycle

b) Diesel Cycle

c) Pascal Cycle

d) None of these

Answer:- a) Otto Cycle

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Turbo charger in a Diesel

Engine is normally driven by ........
a)Inlet Air

b) Exhaust Gases

(c) Lub oil pump

 d) None of these

Answer:- b) Exhaust Gases

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Oil should be checked -

a) Before starting the engine

b) During running of engine

c) Within two minute after

     stopping the engine

d) None of the above

Answer:- a) Before starting the engine

A spark plug gap is kept between -

a)  0.2 to 0.8mm

b)  0.3 to 0.7mm

c)  0.4 to 0.9 mm

d)  0.6 to 1.0 mm

Answer:- a)  0.2 to 0.8mm

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Tappet clearance adjustment is

       carried out when ............

a) Both the inlet and exhaust valves are

     in shut position

b) Only inlet valve is in shut position

c) Only exhaust valve is in shut position

d) All of above

Answer:- a) Both the inlet and exhaust

valves are in shut position

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The lower portion of piston is called as -

a) Sleeve

b) Skirt

c) Piston Land

d) Grooves

Answer:- b) Skirt

The petrol air mixture at starting of

an engine needs to be ............
a)  Lean

b)  Pure petrol

(c) Same as for normal running

d)  Rich

Answer:- d) Rich

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Which of the following has

      finished surface?

a)Wet Liner

b) Dry Liner

c) Both (a) &(b)

d) None of these

Answer:- b) Dry Liner

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Piston diameter is...........than

cylinder diameter.

a) More

b) Less

c) Equal

d) None of these

Answer:- b) Less

Flywheel of a Diesel Engine

is made of ........

a) Wood

b) Aluminum

c) Brass

d) Steel

Answer:- d) Steel

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