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Engineering Mechanics - Interview Questions and Answers

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86. 117. The C.G. of a plane lamina will not be at its geometrical centre in the case of a
A. right angled triangle
B. equilateral triangle
C. square
D. circle
E. rectangle.
Explanation:
87. 100. If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either
A. meet in a point
B. be all parallel
C. at least two of them must meet
D. all the above are correct
E. none of the above.
Explanation:
88. 129. The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of
A. friction
B. limiting friction
C. repose
D. kinematic friction
E. static friction.
Explanation:
89. 2. The unit of work or energy in S.I. units is
A. newton
B. pascal
C. kilogram metre
D. watt
E. joule.
Explanation:
90. 127. A pair of smith's tongs is an example of the lever of
A. zeioth order
B. first order
C. second order
D. third order
E. fourth order.
Explanation: