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Theory of Machine

Theory of Machine
The frequency of damped vibrations with viscous damping is ________ the frequency of undamped vibrations.

More than
None of these
Less than
Same as

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Theory of Machine
The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is

(kG² + h²)/h²
h/(kG² + h²)
(kG² + h²)/h
h²/(kG² + h²)

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Theory of Machine
A higher pair has__________.

No contact
Surface contact
None of these
Point contact

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Theory of Machine
The velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by (where ω = Angular velocity of the cam shaft)

ω (r₁ r₂) sinθ
ω (r₁ + r₂) cosθ cosec2θ
ω (r₁ r₂) cosθ
ω (r₁ + r₂) sinθ sec2θ

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Theory of Machine
The D-slide valve is also known as

Outside admission valve
Inside admission valve
None of these
Piston slide valve

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Theory of Machine
In a ball bearing, ball and bearing forms a

Turning pair
Rolling pair
Spherical pair
Screw pair

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