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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics
The moment of inertia of a triangular section (base b, height h) about centroidal axis parallel to the base, is

b³h/12
bh³/36
bh³/3
bh³/2

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Applied Mechanics and Graphic Statics
A ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is

0.67
0.44
0.33
0.57

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Applied Mechanics and Graphic Statics
The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth)

log r
r
1/r
r2

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Applied Mechanics and Graphic Statics
For a self-locking machine, the efficiency should be

More than 50%
0.5
Less than 60%
None of these

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Applied Mechanics and Graphic Statics
If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is

Proportional to 1/A²
Proportional to A²
Independent of A
Proportional to A

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Applied Mechanics and Graphic Statics
The torque produced by a force depends on(i) The magnitude of the force(ii) The direction of the force(iii) The point of application of the force relative to origin

All (i), (ii) and (iii)
Both (i) and (iii)
Both (i) and (ii)
Only (i)

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