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Theory of Machine

Theory of Machine
Cylindrical cams can be classified as

Tangent
Reciprocating
None of these
Circular

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Theory of Machine
The Bifilar suspension method is used to determine

Position of balancing weights
Centripetal acceleration
Moment of inertia
Natural frequency of vibration

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Theory of Machine
One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring)

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

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Theory of Machine
The example of lower pair is

Straight line motion mechanisms
All of these
Shaft revolving in a bearing
Automobile steering gear

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Theory of Machine
In involute gears, the pressure angle is

Always variable
Always constant
Dependent on the size of gears
Dependent on the size of teeth

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Theory of Machine
An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called

Pitch circle
Dedendum circle
Addendum circle
Clearance circle

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