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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

bh3/8
bh3/4
bh3/12
bh3/36

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Engineering Mechanics
The unit of work in S.I. units is

kg-m
joule
Newton
erg

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

ω3.y
ω2/y
ω2.y
ω.y

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Engineering Mechanics
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)

P = W (cosα + μsinα)
P = W tanα
P = W (sinα + μcosα)
P = W tan (α + φ)

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Engineering Mechanics
A couple produces

Rotational motion
Translatory motion
None of these
Combined translatory and rotational motion

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Engineering Mechanics
In order to double the period of simple pendulum, the length of the string should be

Halved
Doubled
Quadrupled
None of these

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MORE MCQ ON Engineering Mechanics

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