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581.

Ballasting in front tyre of tractor is done for:

A.	Increasing traction	B.	Decreasing load
C.	Increasing stability	D.	All are correct

582.

Ballasting in rear tyre of tractor is done for:

A.	Increasing traction	B.	Reducing tractor vibration
C.	Increasing weight of tractor	D.	Prevent overturning of tractor

583.

Inflation pressure of rear tyre of tractor is:

A.	0.8 to 1.2 kg/cm2	B.	0.1 to 1.5 kg/cm2
C.	1.2 to 2.0 kg/cm2	D.	2.0 to 2.5 kg/cm2

584.

Inflation pressure of front tyre of tractor is:

A.	1.2 to 2.0 kg/cm2	B.	2.0 to 2.5 kg/cm2
C.	2.0 to 2.8 kg/cm2	D.	All are correct

585.

Front wheel of tractor is smaller than rear wheel that helps:

A.	More pull of load	B.	Increasing turning
C.	Sharp turning	D.	All are correct

586.

Ply rating of tyre indicates:

A.	Load-bearing capacity	B.	Load-pulling capacity
C.	Both (a) & (b)	D.	None of these

587.

Toe-in and toe-out are related to:

A.	Front axle of tractor	B.	Rear axle of tractor
C.	Tractor steering	D.	Transmission system

588.

Angle between centre line of kingpin of trctor and vertical line is called:

A.	Tilt angle	B.	Camber angle
C.	Caster angle	D.	All are correct

589.

Angle between centerline of tyre and vertical line is called:

A.	Camber angle	B.	Disc angle
C.	Helix angle	D.	Relief angle

590.

The oil from oil pump delivers directly to:

A.	Oil strain	B.	Oil filter
C.	Mall bearing	D.	All are correct