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Theory of Machine

Theory of Machine
A rigid body possesses ________degrees of freedom

Two
Six
Four
One

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Theory of Machine
A spring controlled governor is said to be isochronous when the controlling force

Remain constant for all radii of rotation
Decreases as the radius of rotation increases
Increases as the radius of rotation decreases
Increases as the radius of rotation increases

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Theory of Machine
The maximum value of the pressure angle in case of cam is kept as

30°
20°
10°
14°

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Theory of Machine
A circular bar moving in a round hole is an example of

Incompletely constrained motion
Partially constrained motion
Successfully constrained motion
Completely constrained motion

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Theory of Machine
The centre of gravity of a coupler link in a four bar mechanism will experience

Only angular acceleration
Only linear acceleration
Both linear and angular acceleration
No acceleration

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Theory of Machine
There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is

1/24
12
4/15
1/8

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