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Engineering Mechanics

Engineering Mechanics
The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of

0.6 r
0.8 r
0.5 r
0.7 r

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Engineering Mechanics
The centre of percussion is below the centre of gravity of the body and is at a distance equal to

h × kG
kG2/h
h/kG
h2/kG

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Engineering Mechanics
If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.

None of these
Changes periodically
Change
Does not change

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Engineering Mechanics
The unit of moment of inertia of an area is

kg-m-s2
kg/m2
m4
kg-m2

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Engineering Mechanics
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point

Same as
Thrice
Twice
Four times

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Engineering Mechanics
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Meet
Do not meet
None of these
Either ‘A’ or ‘B’

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