## Lakshya Education MCQs

Question: The units of moment of inertia of an area are
Options:
 A. kg/m B. kg/m2 C. m4 D. m3

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## More Questions on This Topic :

Question 1. A ball moving on a smooth horizontal table hits a rough vertical wall, the coefficient of restitution between ball and wall being 1/3. the ball rebounds at the same angle. the fraction of its kinetic energy lost is
1.     1/3
2.     2/3
3.     1/9
4.     8/9
Question 2. For a self-locking machine, the efficiency should be
1.     Less than 60%
2.     50%
3.     More than 50%
4.     None of these
Question 3. A flywheel of moment of inertia 20 kg.m is acted upon by a tangential force of 5 n at 2 m from its axis, for 3 seconds. the increase in angular velocity in radian per second is
1.     1/2
2.     3/2
3.     2
4.     3
Question 4. The maximum velocity of a body vibrating with a simple harmonic motion of amplitude 150 mm and frequency 2 vibrations/sec, is
1.     188.5 m/sec
2.     18.85 m/sec
3.     1.885 m/sec
4.     0.18845 m/sec
Question 5. The units of moment of inertia of an area are
1.     kg/m
2.     kg/m2
3.     m4
4.     m3