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Theory of Machine

Theory of Machine
Scotch yoke mechanism is used to generate

Logarithms
Square roots
Inversions
Sine functions

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Theory of Machine
A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The radial component of the acceleration of B with respect to A, is (where vBA = Linear velocity of B with respect to A)

vBA × AB
v²BA
vBA /AB
v²BA /AB

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Theory of Machine
The frictional torque transmitted in a conical pivot bearing, considering uniform wear, is

(3/4) μ W R cosecα
(2/3) μ W R cosecα
μ W R cosecα
(1/2) μ W R cosecα

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Theory of Machine
For the same lift and same angle of ascent, a smaller base circle will give

Something else
There is no such relation with pressure angle
A large value of pressure angle
A small value of pressure angle

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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

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

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Theory of Machine
With usual notations for different parameters involved, the maximum fluctuations of energy for a flywheel is given by

2ECS²
EC S/2
2E²CS
2ECS

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