## Theory of Machine In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The distance between fixed pivots of crank and followers is

Slightly less than 95 mm
Slightly more than 95 mm
95 mm
45 mm

secφ
sinφ
cosecφ
cosφ

## Theory of Machine The Klein's diagram is useful to find

Velocity of various parts
Angular acceleration of various parts
Acceleration of various parts
Displacement of various parts

## Theory of Machine In a four stroke I.C. engine, the turning moment during the compression stroke is

Negative throughout
Positive throughout
Positive during major portion of the stroke
Negative during major portion of the stroke

## Theory of Machine For a kinematic chain to be considered as mechanism

There is no such criterion
One link should be fixed
Two links should be fixed
None of the links should be fixed