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Engineering Mechanics

Engineering Mechanics
Moment of inertia is the

Second moment of force
Second moment of area
Second moment of mass
All of these

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Engineering Mechanics
If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that

tanθ = ΣV × ΣH
tanθ = ΣH/ΣV
tanθ = √(ΣV + ΣH)
tanθ = ΣV/ΣH

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Engineering Mechanics
The slope on the road surface generally provided on the curves is known as

Angle of friction
Angle of repose
None of these
Angle of banking

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

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Engineering Mechanics
One joule is equal to

0.1 N-m
100 N-m
10 N-m
1 N-m

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Engineering Mechanics
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the centre of circular plate

0.5 cm
1.0 cm
2.5 cm
1.5 cm

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