161. In order to completely specify angular displacement by a vector, it must fix
direction of the axis of rotation
magnitude of angular displacement
sense of angular displacement
all of these
✅ The correct answer is option D.
Engineering Mechanics MCQs
162. If the resultant of a number of forces acting on a body is zero, then the body will not be in equilibrium.
Yes
No
✅ The correct answer is option B.
163. In a framed structure, as shown in the below figure, the force in the member CD is tensile in nature.
Agree
Disagree
✅ The correct answer is option A.
164. Two equal and opposite parallel forces whose lines of action are different form a couple.
Correct
Incorrect
✅ The correct answer is option A.
166. An irregular body may have more than one centre of gravity.
Yes
No
✅ The correct answer is option B.
167. The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplaner concurrent forces.
lie
do not lie
✅ The correct answer is option B.
168. The potential energy stored by a spring in compression, is called strain energy.
Yes
No
✅ The correct answer is option A.
169. If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
change
does not change
✅ The correct answer is option B.