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Free download in PDF Machine Kinematics Multiple Choice Questions(MCQs) 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]
ωs2.r
[D]
ωs2/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]
plane motion
[B]
rectilinear motion
[C]
curvilinear Motion
[D]
none of the mentioned
(7)
_______________ is the simplest type of motion and is along a straight line path.
[A]
plane motion
[B]
rectilinear motion
[C]
curvilinear Motion
[D]
none of the mentioned
Answer: rectilinear motion
(8)
_________________ is the motion along a curved path.
[A]
plane motion
[B]
rectilinear motion
[C]
curvilinear Motion
[D]
none of the mentioned
Answer: curvilinear Motion
(9)
Displacement of a body is a ___________ quantity.
[A]
scalar
[B]
vector
[C]
scalar and vector
[D]
none of the mentioned
(10)
A train covers 60 miles between 2 p.m. and 4 p.m. How fast was it going at 3 p.m.?
[A]
60 mph
[B]
30 mph
[C]
40 mph
[D]
50 mph
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