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Theory of Machine

Theory of Machine
In S.H.M., acceleration is proportional to

All of these
Displacement
Velocity
Rate of change of velocity

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Theory of Machine
Maximum fluctuation of energy in a flywheel is equal to [where I = Mass moment of inertia of the flywheel, E = Maximum fluctuation of energy, CS = Coefficient of fluctuation of speed, and ω = Mean angular speed = (ω₁ + ω₂)/2]

2.E.CS
All of these
I.ω².CS
I.ω.(ω₁ - ω₂)

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Theory of Machine
Flexible coupling is used because

It prevents shock transmission and eliminates stress reversals
It is easy to engage and disengage
It is easy to disassemble
It transmits shocks gradually

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Theory of Machine
In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is

Greater than sum of other two
Less than sum of other two
There is no such relationship
Equal to sum of other two

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Theory of Machine
The arrangement is called bevel gearing, when two __________ are connected by gears.

Non-intersecting and non-coplanar shafts
Parallel and non-coplanar shafts
Intersecting and coplanar shafts
Parallel and coplanar shafts

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Theory of Machine
When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration.

Larger
None of the listed here
Smaller
Smaller OR Larger

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