# Engineering :: Engineering Mechanics

1.  The term 'force' may be defined as an agent which produces or tends to produce, destroys or tends to destroy motion
 A. Agree B. Disagree

2.  A force while acting on a body may
 A. change its motion B. balance the forces, already acting on it C. give rise to the internal stresses in it D. all of these

3.  In order to determine the effects of a force, acting on a body, we must know
 A. magnitude of the force B. line of action of the force C. nature of the force i.e. whether the force is push or pull D. all of the above

4.  The unit of force in S.I. system of units of
 A. dyne B. kilogram C. newton D. watt

5.  One kg force is equal to
 A. 7.8 N B. 8.9 N C. 9.8 N D. 12 N

6.  A resultant force is a single force which produces the same effect as produced by all the given forces acting on a body
 A. TRUE B. FALSE

7.  The process of finding out the resultant force is called
 A. composition B. resolution

8.  The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as
 A. principle of independence of forces B. principle of resolution of forces C. principle of transmissibility of forces D. none of these

9.  Vectors method for the resultant force is also called polygon law of forces.
 A. Correct B. Incorrect

10.  The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by
 A. P + Q B. P - Q C. P / Q D. Q / P