Mechanical Engineering - Engineering Mechanics

31.
The maximum frictional force, which comes into play, when a body just begins to slide over the surface of the other body, is known as
static friction
dynamic friction
limiting friction
coefficient of friction
Answer: Option
Explanation:
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32.
The centre of gravity of an equilateral triangle with each side a, is __________ from any of the three sides.
3a/2
23a
a/23
32a
Answer: Option
Explanation:
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33.
The distance, between the point of projection and the point where the projectile strikes the ground, is known as range.
Correct
Incorrect
Answer: Option
Explanation:
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34.
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as
principle of independence of forces
principle of resolution of forces
principle of transmissibility of forces
none of these
Answer: Option
Explanation:
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35.
The triangle law of forces states that if two forces acting simultaneously on a particle, be represented in magnitude and direction by the two sides of a triangle taken in order, then their resultant may be represented in magnitude and direction by the third side of a triangle, taken in opposite order.
True
False
Answer: Option
Explanation:
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