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61.

The oil pan of an engine is made of:

A.	Steel or aluminum	B.	Cast iron or brass
C.	Steel or cast iron	D.	Cast iron or zinc

62.

The counter weight on a crankshaft is located opposite to:

A.	Small end bearing	B.	Big end bearing
C.	Main bearing	D.	None of these

63.

The camshaft controls:

A.	Valve closing	B.	Valve opening
C.	Valve timing	D.	All are correct

64.

The pushrod is located between:

A.	Valve and rocker arm	B.	Tappet and rocker arm
C.	Tappet and camshaft	D.	Valve and camshaft

65.

The six-cylinder engine with possible number of firing orders is:

A.	6	B.	4
C.	3	D.	2

66.

Valve timing diagram is a function of:

A.	Engine speed	B.	Engine compression
C.	Engine torque	D.	I.M.E.P

67.

The specific fuel consumption of diesel engine is:

A.	180 gm/bhp/hr	B.	200 gm/bhp/hr
C.	150 gm/bhp/hr	D.	290 gm/bhp/hr

68.

The specific fuel consumption of petrol engine is:

A.	180 gm/bhp/hr	B.	200 gm/bhp/hr
C.	150 gm/bhp/hr	D.	290 gm/bhp/hr

69.

What the stroke: bore rati of an engine increases, the volumetric efficiency of the engine:

A.	Decreases	B.	Increases
C.	Remains unchanged	D.	None of these

70.

The piston speed of an engine is equal to:

A.	2 LN	B.	ALN
C.	4 LN	D.	None of these