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Engineering Mechanics

Engineering Mechanics
If n = number of members and y = number of joints, then for a perfect frame, n = ?

43892
43832
43865
43864

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Engineering Mechanics
The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is

(4p² - q²)/6
(p² + q²)/4
[√(4p² - q²)]/6
(p² - q²)/4

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Engineering Mechanics
A machine having an efficiency greater than 50%, is known as

Ideal machine
Neither reversible nor non-reversible machine
Reversible machine
Non-reversible machine

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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 resolution of forces
Principle of independence of forces
Principle of transmissibility of forces
None of these

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Engineering Mechanics
The range of a projectile is maximum, when the angle of projection is

45°
60°
90°
30°

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Engineering Mechanics
The coefficient of friction depends upon

Shape of the surfaces
Area of contact
All of these
Nature of surfaces

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MORE MCQ ON Engineering Mechanics

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