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Engineering Mechanics

Engineering Mechanics
The acceleration of a body sliding down an inclined surface is

g sinθ
g tanθ
g cosθ
None of these

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Engineering Mechanics
The maximum efficiency of a lifting machine is

m/V.R.
V.R./m
1/m
1/(m × V.R.)

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

Two times
Four times
Six times
Nine times

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Engineering Mechanics
The moment of inertia of a square of side a about its diagonal is

a⁴/16
a²/8
a⁴/12
a³/12

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Engineering Mechanics
The impact between two lead spheres is approximately equal to an __________ impact.

None of these
Solid
Elastic
Inelastic

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Engineering Mechanics
The forces, whose lines of action are parallel to each other and act in the same directions, are known as

Coplanar non-concurrent forces
Coplanar concurrent forces
Unlike parallel forces
Like parallel forces

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