Drag line excavators are used for digging
A.drainage ditches
B.canals
C.gravel pits
D.Any of the above
Category: Materials Handling Mcqs
Most of the lifting magnets are
A.designed for continuous duty
B.not designed for continuous duty
Which of the following shovel excavator has got the shortest cycle time?
A.Dipper shovel
B.Backhoe
C.Drag line
D.Clam shell
The pressure of air in case of pneumatic tools is generally in the range
A.4 to 6 kg/cm2
B.14 to 16 kg/cm2
C.24 to 26 kg/cm2
D.34 to 36 kg/cm2
Which one of the following shovel excavators is considered most efficient in loading carriers?
A.Dipper shovel
B.Drag line
C.Back hoe
D.Clam shell
The horse power required to move a belt conveyor increases as
A.conveyor speed
B.load increases
C.angle of inclination increases
D.all of the above
The power requirement in case of a screw conveyor depends on
A.material to be handled
B.rate of transportation
C.length of conveyor
D.all of the above
Skip hoists are generally used where
A.the lift is too high
B.the lumps to be lifted are large
C.the material is pulverized
D.all of the above
Which braking system is not used in case of earth moving machinery?
A.Pneumatic braking system
B.Hydraulic braking system
C.Vacuum braking system
D.Mechanical braking system
The pressure of steam in a steam locomotive system is
A.10 to 15 kg/cm2
B.20 to 30 kg/cm2
C.70 to 90 kg/cm2
D.115 to 125 kg/cm2
