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Theory of Machine

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

Higher pair
Lower pair
Close pair
Open pair

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Theory of Machine
The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints)

n = 3(l - 1) - 2j
n = 2(l - 1) - 2j
n = (l -1) - j
n = 4(l - 1) - 3j

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Theory of Machine
The swaying couple is due to the

Primary unbalanced force
Two cylinders of locomotive
Partial balancing
Secondary unbalanced force

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Theory of Machine
A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________ the angle of friction.

Less than
Greater than
Equal to
None of these

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Theory of Machine
A friction circle is a circle drawn when a journal rotates in a bearing. Its radius depends upon the coefficient of friction and the

Angular velocity of journal
Radius of journal
Clearance between journal and bearing
Magnitude of the forces on journal

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Theory of Machine
In a kinematic chain, a quaternary joint is equivalent to

One binary joint
Four binary joints
Two binary joints
Three binary joints

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