Top 150+ Solved Engineering Mechanics MCQ Questions Answer
Q. The total momentum of a system of masses (i.e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called
a. Newton's first law of motion
b. Newton's second law of motion
c. principle of conservation of energy
d. principle of conservation of momentum
Q. Which of the following are vector quantities?
a. Angular displacement
b. Angular velocity
c. Angular acceleration
d. all of these
Q. D' Alembert's principle basically depends upon Newton's second law of motion.
a. Correct
b. Incorrect
Q. In order to completely specify angular displacement by a vector, it must fix
a. direction of the axis of rotation
b. magnitude of angular displacement
c. sense of angular displacement
d. all of these
Q. Two forces are acting at an angle of 120?. The bigger force is 40N and the resultant is perpendicular to the smaller one. The smaller force is
a. 20N
b. 40N
c. 40N
d. none of these
Q. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is
a. nine times
b. six times
c. four times
d. two times
Q. 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