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Engineering Mechanics - Interview Questions and Answers

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16. 24. According to principle of transmissibility of forces, the effect of a force upon a body is
A. maximum when it acts at the centre of gravity of a body
B. different at different points in its line of action
C. the same at every point in its line of action
D. minimum when it acts at the C.G. of the body
E. none of the above.
Explanation:
17. 14. The resolved part of the resultant of two forces inclined at an angle 9 in a given direction is equal to
A. the algebraic sum of the resolved parts of the forces in the given direction
B. the sum of the resolved parts of the forces in the given direction
C. the difference of the forces multiplied by the cosine of 9
D. the sum of the forces multiplied by the sine of 9
E. the sum of the forces multiplied by the tangent of 9.
Explanation:
18. 47. Centre of gravity of a thin hollow cone lies on the axis at a height of
A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above.
Explanation:
19. 42. The product of either force of couple with the arm of the couple is called
A. resultant couple
B. moment of the forces
C. resulting couple
D. moment of the couple
E. none of the above.
Explanation:
20. 55. From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate
A. 0.5 cm
B. 1.0 cm
C. 1.5 cm
D. 2.5 cm
E. 0.25 cm.
Explanation:
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