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Free download in PDF Machine Kinematics 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)
By how much angle in degrees does the velocity leads the displacement in a body undergoing SIMPLE HARMONIC MOTION?
[A]
90
[B]
45
[C]
180
[D]
0
(2)
For a body undergoing SIMPLE HARMONIC MOTION, the acceleration is always in the direction of the displacement.
(3)
The maximum displacement of the body under Simple Harmonic Motion from its mean position is known as_______
[A]
Amplitude
[B]
Frequency
[C]
Time period
[D]
Range
(4)
The piston of an engine moves with SIMPLE HARMONIC MOTION. The crank rotates at a speed of 120 r.p.m. with a stroke of 2 metres. Find the velocity of the piston in m/s, when it is at a distance of 0.75 metre from the centre.
[A]
8.31
[B]
7.33
[C]
8.41
[D]
9.02
(5)
The piston of an engine moves with SIMPLE HARMONIC MOTION. The crank rotates at a speed of 120 r.p.m. with a stroke of 2 metres. Find the velocity of the piston in m/s2, when it is at a distance of 0.75 metre from the centre.
[A]
118.46
[B]
117.33
[C]
128.41
[D]
119.02
(6)
A point moves with SIMPLE HARMONIC MOTION. When this point is 0.75 m away from the mid path, it has a velocity of 11 m/s and when 2 m from the centre of its path its velocity is 3 m/s. Find its angular velocity in rad/s.
[A]
5.7
[B]
7.5
[C]
6.7
[D]
7.6
(7)
A point moves with SIMPLE HARMONIC MOTION. When this point is 0.75 m away from the mid path, it has a velocity of 11 m/s and when 2 m from the centre of its path its velocity is 3 m/s. Find its time period in s.
[A]
1.1
[B]
1.2
[C]
1.3
[D]
1.4
(8)
A point moves with SIMPLE HARMONIC MOTION. When this point is 0.75 m away from the mid path, it has a velocity of 11 m/s and when 2 m from the centre of its path its velocity is 3 m/s. Find its maximum acceleration in m/s2.
[A]
61.1
[B]
67.2
[C]
51.3
[D]
41.4
(9)
If V is the maximum velocity of a body undergoing SIMPLE HARMONIC MOTION, then what is the average velocity of motion from one extreme to other extreme is?
[A]
2V/π
[B]
4V/π
[C]
V/2π
[D]
2V/3π
(10)
If V is the maximum velocity of a body undergoing SIMPLE HARMONIC MOTION, then what is the average velocity of motion?
[A]
2V/π
[B]
4V/π
[C]
V/2π
[D]
2V/3π
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