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Theory of Machine

Theory of Machine
If there are L number of links in a mechanism, then number of possible inversions is equal to

L - 1
L + 2
L
L + 1

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Theory of Machine
In a simple harmonic motion, the velocity vector with respect to displacement vector

Is in phase
Leads by 180°
Lags by 90°
Leads by 90°

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Theory of Machine
If the rotating mass of a rim type flywheel is distributed on another rim type flywheel whose mean radius is half the mean radius of the former, then energy stored in the latter at the same speed will be

Four times the first one
One and a half times the first one
Same as the first one
One fourth of the first one

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Theory of Machine
In higher pair, the relative motion is

Purely turning
Purely sliding
Combination of sliding and turning
Purely rotary

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Theory of Machine
The instantaneous centers which vary with the configuration of mechanism are called

Permanent instantaneous centers
Neither fixed nor permanent instantaneous centers
Fixed instantaneous centers
None of these

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Theory of Machine
Which of the following is an example of a higher pair?

Belt and rope drive
All of the listed here
Toothed gearing
Ball and roller bearing

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