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Engineering Mechanics

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

Third
First
Second
None of these

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Engineering Mechanics
The three forces of 100 N, 200 N and 300 N have their lines of action parallel to each other but act in the opposite directions. These forces are known as

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

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Engineering Mechanics
A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of

0.134 r
r/3
r/A
r/2

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Engineering Mechanics
If n = number of members and y = number of joints, then for a perfect frame, n = ?

43865
43832
43864
43892

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Engineering Mechanics
The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

(kG² + h²)/h
h/(kG² + h²)
h²/(kG² + h²)
(kG² + h²)/h²

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Engineering Mechanics
One joule is equal to

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

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