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Engineering Mechanics

Engineering Mechanics
The maximum acceleration of a particle moving with simple harmonic motion is

ω
ω/r
ω²r
ωr

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Engineering Mechanics
In actual machines, mechanical advantage is _________ velocity ratio.

None of these
Greater than
Equal to
Less than

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Engineering Mechanics
Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is

(3/4) Ml²
(1/12) Ml²
(2/3) Ml²
(1/3) Ml²

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Engineering Mechanics
If a number of coplanar forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.

Equal to
Less than
Greater than
None of these

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Engineering Mechanics
According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)

IP = IG - Ah2
IP = IG + Ah2
IP = IG / Ah2
IP = Ah2 / IG

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Engineering Mechanics
The unit of angular velocity is

m/min
rad/s
Both (B) and (C)
Revolutions/min

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MORE MCQ ON Engineering Mechanics

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