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Engineering Mechanics

Engineering Mechanics
The angle between two forces when the resultant is maximum and minimum respectively are

180° and 0°
0° and 180°
90° and 0°
90° and 180°

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Engineering Mechanics
The forces, which meet at one point and their lines of action also lie on the same plane, are known as

Non-coplanar concurrent forces
Coplanar concurrent forces
Coplanar non-concurrent forces
Non-coplanar non-concurrent forces

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Engineering Mechanics
The maximum efficiency of a lifting machine is

1/(m × V.R.)
V.R./m
1/m
m/V.R.

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

43865
43892
43864
43832

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Engineering Mechanics
The maximum height of a projectile on a horizontal plane, is

u² sin²α/2g
u² cos²α/g
u² cos²α/2g
u² sin²α/g

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Engineering Mechanics
The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be

3r/2
r/A
2r/3
r/2

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MORE MCQ ON Engineering Mechanics

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