Explore topic-wise MCQs in Machine Kinematics.

This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.

1.

The absolute acceleration of any point P in a link about center of rotation O is

A. along PO
B. perpendicular to PO
C. at 450 to PO
D. none of the mentioned
Answer» E.
Discussion
2.

A link is rotating about O. Velocity of point P on link w.r.t. point Q on link will be perpendicular to

A. OP
B. OQ
C. PQ
D. line in between OP and OQ
Answer» D. line in between OP and OQ
Discussion
3.

According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centres lie on

A. a triangle
B. a point
C. two lines
D. a straight line
Answer» E.
Discussion
4.

THE_VELOCITY_OF_ANY_POINT_IN_MECHANISM_RELATIVE_TO_ANY_OTHER_POINT_ON_THE_MECHANISM_ON_VELOCITY_POLYGON_IS_REPRESENTED_BY_THE_LINE?$

A. joining the corresponding points
B. perpendicular to line
C. at 45<sup>0</sup> to line
D. none of the mentioned
Answer» B. perpendicular to line
Discussion
5.

Angular acceleration of a link can be determined by dividing the$

A. centripetal component of acceleration with length of link
B. tangential component of acceleration with length of link
C. resultant acceleration with length of link
D. all of the mentioned
Answer» C. resultant acceleration with length of link
Discussion
6.

The_absolute_acceleration_of_any_point_P_in_a_link_about_center_of_rotation_O_is$

A. along PO
B. perpendicular to PO
C. at 45<sup>0</sup> to PO
D. none of the mentioned
Answer» E.
Discussion
7.

A link is rotating about O. Velocity of point P on link w.r.t. point Q on link will be perpendicular t?

A. OP
B. OQ
C. PQ
D. line in between OP and OQ
Answer» D. line in between OP and OQ
Discussion
8.

Two systems shall be dynamically equivalent when

A. the mass of two are same
B. c.g. of two coincides
C. M.I. of two about an axis through c.g. is equal
D. all of the mentioned
Answer» E.
Discussion
9.

In a rigid link OA, velocity of A w.r.t. O will be

A. parallel to OA
B. perpendicular to OA
C. at 45<sup>0</sup> to OA
D. along AO
Answer» C. at 45<sup>0</sup> to OA
Discussion
10.

According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centres lie on$

A. a triangle
B. a point
C. two lines
D. a straight line
Answer» E.
Discussion
11.

The number of links and instantaneous centers in a reciprocating engine mechanism are

A. 4,4
B. 4,5
C. 5,4
D. 4,6
Answer» E.
Discussion
12.

The total number of instantaneous centers for a mechanism of n links is

A. n(n – 1)/2
B. n
C. n – 1
D. n(n – 1)
Answer» B. n
Discussion
13.

Instantaneous center of rotation of a link in a four bar mechanism lies on

A. right side pivot of this link
B. left side pivot of this link
C. a point obtained by intersection on extending adjoining links
D. none of the mentioned
Answer» D. none of the mentioned
Discussion
14.

Which is the false statement about the properties of instantaneous centre?

A. at the instantaneous centre of rotation, one rigid link rotates instantaneously relative to another for the configuration of mechanism considered
B. the two rigid links have no linear velocities relative to each other at the instantaneous centre
C. the two rigid links which have no linear velocity relative to each other at this centre have the same linear velocity to the third rigid link
D. the double centre can be denoted either by O<sub>21</sub> or O<sub>12</sub>, but proper selection should be made
Answer» E.
Discussion