Last updated: August 14, 2020

1. The mechanical advantage of a lifting machine is the ratio of
2. Moment of inertia of a circular section about an axis perpendicular to the section is
3. The friction experienced by a body, when in motion, is known as
4. The range of a projectile is maximum, when the angle of projection is
5. The angle of inclination of a vehicle when moving along a circular path __________ upon its mass.
6. The unit of angular acceleration is
7. Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)
8. According to principle of conservation of energy, the total momentum of a system of masses in any direction remains constant unless acted upon by an external force in that direction.
9. A smooth cylinder lying on its convex surface remains in __________ equilibrium.
10. The bodies which rebound after impact are called
11. The coefficient of restitution for elastic bodies is one.
12. The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)
13. The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion.
14. The velocity ratio in case of an inclined plane inclined at angle θ to the horizontal and weight being pulled up the inclined plane by vertical effort is
15. The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
16. The range of projectile on a downward inclined plane is __________ the range on upward inclined plane for the same velocity of projection and angle of projection.
17. Two balls of equal mass and of perfectly elastic material are lying on the floor. One of the ball with velocity v is made to struck the second ball. Both the balls after impact will move with a velocity
18. Coefficient of friction is the ratio of the limiting friction to the normal reaction between the two bodies.
19. If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is
20. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is
Engineering Mechanics MCQ 1
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