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1351.

Thermal conductivity of single grain ranges from 1-5 is:

A.	0.3-0.6 Kcal/mhr/?C	B.	0.4-0.8 Kcal/mhr
C.	0.5-0.9 Kcal/m	D.	0.6-1.0 Kcal/mhr

1352.

Thermal conductivity of bulk grain varies from:

A.	0.10-0.15 Kcal/mhr/?C	B.	0.15-0.20 Kcal/mhr/?C
C.	0.20-0.25 Kcal/mhr/?C	D.	0.25-0.30 Kcal/mhr/?C

1353.

Thermal conductivity of air is :

A.	0.01 Kcal/mhr. ?C	B.	0.02 Kcal/mhr. ?C
C.	0.03 Kcal/mhr. ?C	D.	None of these

1354.

Cleaning of material is done by:

A.	Washing	B.	Screening
C.	Handpicking	D.	All are correct

1355.

The removal of few large particles in an initial process is:

A.	Scalping	B.	Cleaning
C.	Grading	D.	Sorting

1356.

Cleaning of material is done on the basis of:

A.	Shape	B.	Size
C.	Weight	D.	Density

1357.

In the cylinder sorter, the inclination of cylinder for dry granular material is kept up to:

A.	75 mm/mb	B.	100 mm/m
C.	125 mm/m	D.	150 mm/m

1358.

Disc separator separates materials on the basis of:

A.	Length	B.	Width
C.	Weight	D.	Shape

1359.

Indented cylinder separator separates the grains on the basis of:

A.	Weight	B.	Relative length
C.	Length	D.	All are correct

1360.

Spiral separator separates the grains on the basis of:

A.	Weight	B.	Spherisity
C.	Roundness	D.	Size