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Machine Kinematics -Kinematics of Motion Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like UPSC, NDA, SSC etc. These short solved questions or quizzes are provided by Gkseries./p>
(1)
The unit of linear acceleration is
[A]
kg-m
[B]
m/s
[C]
m/s2
[D]
rad/s2
(2)
The angular velocity (in rad/s) of a body rotating at N r.p.m. is
[A]
π N/60
[B]
2 π N/60
[C]
π N/120
[D]
π N/180
(3)
The linear velocity of a body rotating at ω rad/s along a circular path of radius r is given by
[A]
ω.r
[B]
ω/r
[C]
ω2.r
[D]
ω2/r
(4)
When a particle moves along a straight path, then the particle has
[A]
tangential acceleration only
[B]
centripetal acceleration only
[C]
both tangential and centripetal acceleration
[D]
none of the mentioned
Answer: tangential acceleration only
(5)
When a particle moves with a uniform velocity along a circular path, then the particle has
[A]
tangential acceleration only
[B]
centripetal acceleration only
[C]
both tangential and centripetal acceleration
[D]
none of the mentioned
Answer: centripetal acceleration only
(6)
When the motion of a body is confined to only one plane, the motion is said to be
[A]
translatory motion
[B]
plane motion
[C]
culvilinear motion
[D]
none of the mentioned
(7)
When the motion of a body is along a straight line path, it is called
[A]
translatory motion
[B]
plane motion
[C]
culvilinear motion
[D]
none of the mentioned
(8)
When the motion of a body is along a curved path, it is called
[A]
translatory motion
[B]
plane motion
[C]
culvilinear motion
[D]
none of the mentioned
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