Subject code: 20ME2101
RAJIV GANDHI UNIVERSITY OF KNOWLEDGE TECHNOLOGIES
ONGOLE CAMPUS
E2 (2019 BATCH) SEMESTER 1 ASSESSMENT TEST 2, DECEMBER 2022
SUBJECT: Kinematics of Machinery DATE: 05-01-2023
Time: 15 min BRANCH: Mechanical Max. 10 Marks
Choose Correct Answer 10×1M=10M
1. The total number of instantaneous centers for a mechanism consisting of n links are
a) n/2 b) n c) n-1 d) n(n-1)/2 [ ]
2. According to Kennedy’s theorem, if three bodies move relatively to each other, their
instantaneous centres will lie on [ ]
a) straight line
b) parabolic curve
c) triangle
d) rectangle
3. When a slider moves on a fixed link having curved surface, their instantaneous centre lies
a) on their point of contact [ ]
b) at the centre of curvature
c) at the centre of circle
d) at the pin joint
4. The motion of a piston in the cylinder of a steam engine is an example of
a) completely constrained motion [ ]
b) incompletely constrained motion
c) successfully constrained motion
d) none of the mentioned
5. A ball and a socket joint forms a
a) turning pair [ ]
b) rolling pair
c) sliding pair
d) spherical pair
6. The relation between the number of pairs ( p ) forming a kinematic chain and the number of
links (l) is [ ]
a) l = 2p – 2 b) l = 2p – 3 c) l = 2p – 4 d) l = 2p – 5
7. The instantaneous center of rotation of a circular disc rolling on a straight path is
a) at the center of the disc [ ]
b) at their point of contact
c) at the center of gravity of the disc
d) at infinity
8. The component of the acceleration directed towards the center of rotation of a revolving
body is known as ____________ component. [ ]
a) tangential b) centripetal c) Coriolis d) none of the mentioned
9. A slider moves with uniform velocity v on a revolving link of length r with angular velocity
of ω. The Coriolis acceleration component of a point on the slider relative to a coincident
point on the link is equal to
a) 2rω parallel to the link [ ]
b) 2ωv perpendicular to the link
c) 2rω perpendicular to the link
d) 2ωv parallel to the link
10. The motion transmitted between the teeth of gears in mesh is
a) sliding [ ]
b) rolling
c) may be rolling or sliding depending upon the shape of teeth
d) partly sliding and partly rolling
