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811.

The coulter of MB plough is generally mounted:

A.	Above share point	B.	Little ahead of share point
C.	Both (a) & (b)	D.	None of these

812.

One-way plough requires laying out a field in lands, ending with:

A.	Dead furrow	B.	Back Furrow
C.	Both (a) & (b)	D.	None of these

813.

A plough that works effectively in hard, dry and sticky soil is:

A.	Mould board plough	B.	Disc plough
C.	Harrow plough	D.	Indigenous plough

814.

The mould board plough absorb side forces mainly through the:

A.	Share	B.	Mould board
C.	Land disc	D.	Frog

815.

The bearing used in most of disc harrow is about:

A.	Sealed ball bearing	B.	Unsealed ball bearing
C.	Sealed taper roller bearing	D.	Unsealed taper roller bearing

816.

The maximum operating depth for disc harrow is about:

A.	One-half of the disc diameter	B.	One -third of the disc diameter
C.	One-fifth of the disc diameter	D.	One-fourth of disc diameter

817.

Puddling is done mainly for:

A.	Reducing seepage of water	B.	Reducing deep percolation of water
C.	Smoothing seed bed	D.	None of these

818.

Land shaping becomes necessary where often the following implement is used:

A.	2-5 cm	B.	5-10 cm
C.	25-30 cm	D.	Abov 40 cm

819.

Land shaping becomes necessary where often the following implement is used:

A.	MB plough	B.	Disc harrow
C.	Cultivators	D.	Rotary plough

820.

Land plane is ideally suited for

A.	Land leveling	B.	Earth moving
C.	Final grading	D.	Top finishing