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Engineering Mechanics

Engineering Mechanics
The unit of force in S.I. system of units is

Newton
Dyne
Watt
Kilogram

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Engineering Mechanics
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
None of these
Principle of transmissibility of forces
Principle of resolution of forces

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Engineering Mechanics
A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.

None of these
Greater than
Less than
Equal to

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Engineering Mechanics
The moment of inertia of a sphere of mass 'm' and radius 'r', about an axis tangential to it, is

7mr²/5
2mr²/5
7mr²/3
2mr²/3

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Engineering Mechanics
A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)

None of these
MS/4
MS/3
MS/5

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Engineering Mechanics
Concurrent forces are those forces whose lines of action

Meet at one point
None of these
Lie on the same line
Meet on the same plane

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