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Engineering Mechanics

Engineering Mechanics
The resultant of two forces P and Q (such that P > Q) acting along the same straight line, but in opposite direction, is given by

Q / P
P - Q
P / Q
P + Q

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Engineering Mechanics
The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

2P cosθ/2
2P cotθ/2
2P tanθ/2
2P sinθ/2

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

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

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Engineering Mechanics
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is

db³/36
bd³/12
bd³/36
db³/12

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Engineering Mechanics
The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is

2mr²/5
3mr²/5
mr²/3
2mr²/3

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

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

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MORE MCQ ON Engineering Mechanics

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