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Engineering Mechanics

Engineering Mechanics
An ideal machine is one whose efficiency is

1
Between 80 and 90%
Between 70 and 80%
Between 60 and 70 %

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Engineering Mechanics
When the spring of a watch is wound, it will possess

Electrical energy
Strain energy
Kinetic energy
Heat energy

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Engineering Mechanics
One joule is equal to

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

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis through its base, is

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

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Engineering Mechanics
The range of projectile on a downward inclined plane is ________ the range on upward inclined plane for the same velocity of projection and angle of projection.

More than
None of These
Equal to
Less than

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Engineering Mechanics
The forces, which meet at one point, but their lines of action do not lie in a plane, are called

Intersecting forces
Non-coplanar non-concurrent forces
Non-coplanar concurrent forces
Coplanar non-concurrent forces

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