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Theory of Machine

Theory of Machine
The periodic time of one oscillation for a simple pendulum is

2π. √(l/g)
(1/2π). √(g/l)
(1/2π). √(l/g)
2π. √(g/l)

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

Rate of change of velocity
Displacement
All of these
Velocity

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Theory of Machine
The angle of inclination of the plane, at which the body begins to move down the plane is called

None of these
Angle of friction
Angle of repose
Angle of projection

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Theory of Machine
The frequency of oscillation at compared to earth will be

6 times more
2.44 times less
2.44 times more
6 times less

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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

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

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Theory of Machine
Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism

1, 3 and 4
1, 2 and 4
1, 2 and 3
2, 3 and 4

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