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Engineering Mechanics

Engineering Mechanics
The velocity ratio for the third system of pulleys is

n
2n - 1
2n
n²

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Engineering Mechanics
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Either ‘A’ or ‘B’
Meet
Do not meet
None of these

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Engineering Mechanics
A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.

None of these
Equal to
Greater than
Less than

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Engineering Mechanics
If the body falls freely under gravity, then the gravitational acceleration is taken as

+9.8 m/s2
+8.9 m/s2
-8.9 m/s2
-9.8 m/s2

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Engineering Mechanics
An ideal machine is one whose efficiency is

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

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

43832
43892
43864
43865

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MORE MCQ ON Engineering Mechanics

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