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Theory of Machine

Theory of Machine
With single Hooke's joint it is possible to connect two shafts, the axes of which have an angular misalignment up to

30°
40°
20°
10°

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Theory of Machine
To obviate axial thrust, following gear drive is used

Mutter gears
Double helical gears having opposite teeth
Single helical gear in which one of the teeth of helix angle a is more
Double helical gears having identical teeth

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Theory of Machine
Oldham’s coupling is an inversion of the kinematic chain used in

Elliptical trammels
Rotary engine
Whitworth quick return mechanism
Universal joint

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Theory of Machine
A kinematic chain requires at least

2 links and 3 turning pairs
4 links and 4 turning pairs
5 links and 4 turning pairs
3 links and 4 turning pairs

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Theory of Machine
The lower pairs are _________ pairs.

None of these
Force-closed
Self-closed
Friction closed

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Theory of Machine
When a rigid body is suspended vertically and it oscillates with a small amplitude under the action of the force of gravity, the body is known as

Second's pendulum
Simple pendulum
Compound pendulum
Torsional pendulum

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