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Theory of Machine

Theory of Machine
Pulley in a belt drive acts as

Turning pair
Cylindrical pair
Rolling pair
Sliding pair

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Theory of Machine
In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system)

Equal to unity
Greater than unity
Less than unity
Zero

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Theory of Machine
The two elements of a pair are said to form a _________ when they permit relative motion between them.

Kinematic pair
None of these
Sliding pair
Open pair

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Theory of Machine
A cam with a roller follower would constitute following type of pair

Higher pair
Open pair
Lower pair
Close pair

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Theory of Machine
In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by

μ₁ = μ sin β
μ₁ = μ/cos β
μ₁ = μ cos β
μ₁ = μ/sin β

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Theory of Machine
Which type of gear train is used in clock mechanism to join hour hand and minute hand?

Reverted gear train
Compound gear train
Epicyclic gear train
Simple gear train

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