While dragging, the coefficient of friction (using steel plate) will be maximum in case of
A.anthracite
B.bituminous coal
C.coke
D.hog fuel, dry
A.anthracite
B.bituminous coal
C.coke
D.hog fuel, dry
A.anthracite coal
B.bituminous coal
C.hog fuel
D.coke
A.Belt conveyor
B.Pneumatic conveyor
C.Screw conveyor
D.Any of the above
A.4 ft, 6
B.3 ft, 9
C.One metre
D.0.692 metre
A.soda ash
B.salt cake
C.carbon black
D.all of the above
A.drainage ditches
B.canals
C.gravel pits
D.Any of the above
A.designed for continuous duty
B.not designed for continuous duty
A.Dipper shovel
B.Backhoe
C.Drag line
D.Clam shell
A.4 to 6 kg/cm2
B.14 to 16 kg/cm2
C.24 to 26 kg/cm2
D.34 to 36 kg/cm2
A.Dipper shovel
B.Drag line
C.Back hoe
D.Clam shell