Engineering :: Materials Handling

@ : Home > Mechanical Engineering > Materials Handling

161.

In which case, the permissible incline in belt conveyor will be minimum?

A.	Clay, dry fine	B.	Dry silica sand
C.	Powdered lime	D.	Coal, slack

162.

In which case of permissible incline in belt conveyor will be maximum?

A.	Stone, crushed	B.	Wet clay
C.	Foundry sand	D.	Coal, run of mine

163.

Which one of the following shovel excavator is not suitable for operation in hard soil or rock?

A.	Dipper shovel	B.	Clam shell
C.	Drag line	D.	Back hoe

164.

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

165.

Identify the incorrect statement, if any

A.	Crawler tractors can travel faster than wheel tractors	B.	Crawler tractors are more compact and powerful
C.	Crawler tractors are generally more costly than the wheeled tractors	D.	Wheeled tractors are liable to slip over very smooth or loose fittings when increased power is applied to the wheels.

166.

Which of the following bearing is not used in earth moving equipment?

A.	Ball bearing	B.	Bush bearing
C.	Jewel bearing	D.	Needle bearing

167.

Kink' in a steel wire rope is produced

A.	when some strands are broken	B.	when the rope looses its springing action
C.	when a rope with a loop or twist in its length is pulled tight	D.	when the rope is permanently elongated due to overloading

168.

The handling capacity of a drag line having bucket of one cubic metre capacity is expected to be least while handling

A.	Clay, wet sticky	B.	Clay, hard tough
C.	Sand	D.	Gravel.

169.

A shovel having dipper capacity of one cubic metre working on good common earth will handle approximately

A.	15 cubic metes/hour	B.	45 cubic metres/hour
C.	100 cubic metres/hour	D.	175 cubic metres/hour

170.

Inflation pressure for truck tyres is generally

A.	1 kg/cm2	B.	2.2 kg/cm2
C.	3 kg/cm2	D.	6 kg/cm2