Engineering :: Materials Handling

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111.

Rubber belts in case of belt conveyors are reinforced with

A.	rayon	B.	nylon
C.	polyster	D.	Any of the above

112.

The thickness of belt is usually specified in terms of

A.	index number	B.	merit number
C.	number of plies	D.	thickness in mm

113.

Belt life is reduced by

A.	impact of loading	B.	conveying horizontally as compared to incline
C.	using pulverized materials	D.	all of the above

114.

In case of a belt conveyor, the driving motor

A.	always starts on no load	B.	always starts on load
C.	always runs at slow speed	D.	always starts at high speed

115.

Which motor is preferred for belt conveyors?

A.	synchronous motor	B.	wound rotor induction motor
C.	double squirrel cage induction motor	D.	None of the above

116.

In case clutch is to be introduced in the drive for belt conveyor, which clutch will be preferred?

A.	Dog clutch	B.	Spring loaded clutch
C.	Hydraulic clutch	D.	Any of the above

117.

In case of belt conveyors, a tripper is used to

A.	facilitate loading	B.	facilitate unloading
C.	prevent shock loading	D.	prevent damage to belt

118.

In case of belt conveyors, while conveying anthracite, the maximum permissible slope is

A.	16?	B.	20?
C.	30?	D.	28?

119.

In case of belt conveyors, while conveying earth, as excavated, the maximum permissible slope is around

A.	10?	B.	20?
C.	30?	D.	40?

120.

In case of belt conveyors, the permissible slope will be least while conveying

A.	Lignite	B.	Sand
C.	Gravel pebbles	D.	Wood chips