In case of locomotion, the coefficient of adhesion is highest when
A.the rails are dry
B.the rails are oiled
C.the rails are wet
D.the rails are dusty
Category: Materials Handling Mcqs
All of the following materials have abrasive action on the belt conveyors except?
A.Arsenic salts
B.Borax
C.Wet ash
D.Alum
Pillar cranes are generally used for
A.light work
B.infrequent service
C.either of (A) or (B) above
The horse power to weight ratio of a diesel engine may be expected to be of the order of
A.10 to 15 kg/HP
B.25 to 35 kg/HP
C.45 to 50 kg/HP
D.85 to 100 kg/HP
Braking system is invariably incorporated in case of
A.Electric hoists
B.Magnetic hoists
C.Hand chain hoists
D.all of the above
Electric motor used for skip hoists may be
A.dc motor
B.Slip ring type induction motor
C.Ward Leonard system
D.Any of the above
Lift trucks may be
A.manually operated
B.battery operated
C.diesel engine powered
D.Any of the above
Which one of the following does not form a part of the specification for steel wire rope?
A.Length
B.Lay
C.Material of core
D.Surface finish
Cable ways are generally used in
A.mining areas for transportation of minerals
B.sleepers, pipes etc
C.heavy machinery
D.None of the above
All of the following are granular materials EXCEPT:
A.Alum
B.Hog fuel
C.Bran
D.Coffee beans
