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Mechanical Engineering - Engineering Mechanics

Exercise : Engineering Mechanics - Section 6
1.
The velocity ratio of a simple wheel and axle with D and d as the diameters of effort wheel and load axle, is
D + d
D - d
D x d
D / d
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
The unit of force in S.I. system of units is
dyne
kilogram
newton
watt
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The moment of inertia of a solid cone of mass m and base radius r about its vertical axis is
3mr2/5
3mr2/10
2mr2/5
4mr2/5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
A body is said to move or vibrate with simple harmonic motion if its acceleration is directed towards the mean position.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act
downward at its upper end
upward at its upper end
zero at its upper end
perpendicular to the wall at its upper end
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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