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Engineering Mechanics

Engineering Mechanics
A pendulum which executes one beat per second is known as

Torsional pendulum
Compound pendulum
Second's pendulum
Simple pendulum

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Engineering Mechanics
Whenever a force acts on a body and the body undergoes a displacement, then

Power is being transmitted
None of these
Body has kinetic energy of translation
Work is said to be done

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Engineering Mechanics
The moment of inertia of a sphere of mass 'm' and radius 'r', about an axis tangential to it, is

7mr²/5
7mr²/3
2mr²/5
2mr²/3

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Engineering Mechanics
If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys.

Third
Second
None of these
First

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Engineering Mechanics
The mechanical advantage of a lifting machine is the ratio of

Load lifted to the effort applied
Output to the input
All of these
Distance moved by effort to the distance moved by load

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Engineering Mechanics
The centre of gravity of a uniform lamina lies at

The bottom surface
All of these
The centre of heavy portion
The midpoint of its axis

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