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181.

In order to minimise jerks, the type of cam used is

182.

The purpose of providing multiple collars on a flat collar pivot bearing is to

A.	Increase frictional resistance	B.	Establish self-substaining bearing condition
C.	Distribute the frictional load because of limiting frictional resistance	D.	Distribute the axial load becase of limiting bearing pressure on a collar
E.	None of the above

183.

In above problem the cone pitch angle of the pinion will be

184.

The 'crowning' of flat pulleys is generally done

A.	To rduce the belt friction	B.	To prevent belt joint from damaging the belt surface
C.	To prevent the belt from running off the pulley	D.	In case of cross belt drives only
E.	None of the above

185.

In case of Vee belt

A.	The belt should touch the bottom of groove in the fulley	B.	The belt should not touch the bottom of groove in the pulley
C.	Grooves in the pulley are generally wider than the belt	D.	The efficiency of transmission is less
E.	Tension in belt remains constant throughout

186.

Belt slip may occur due to

187.

For maximum horse power transmission in belt drives the velocity of belt left such that the ration tight side driving tension/centrifugal tension is

188.

The stretching in a belt is controlled by

189.

In case of spur gears the higher pressure angle results in

A.	Weaker teeth	B.	Non-uniform motion transmission
C.	Begger size of gear	D.	Wider base and stronger teeth
E.	Narrow base and weaker teeth

190.

In case of worm and worm-wheel the maximum efficiency is obtained when

A.	Worm is driver	B.	Worm wheel is driver
C.	Either of the worm or worm wheel is a driver	D.	Depends on other factors
E.	None of the above