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Engineering Mechanics

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

n²
n
2n
2n - 1

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Engineering Mechanics
The maximum height of a projectile on a horizontal plane, is

u² cos²α/g
u² sin²α/g
u² sin²α/2g
u² cos²α/2g

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Engineering Mechanics
The range of projectile (R) on an upward inclined plane is

2u². sin (α - β). cos α/g. cos² β
g. cos² β/2u². sin (α - β). cos α
2u². sin (α + β). cos α/g. cos² β
g. cos² β/2u². sin (α + β). cos α

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Engineering Mechanics
The velocity ratio of a first system of pulleys with 4 pulleys is

16
8
20
4

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Engineering Mechanics
A machine having an efficiency less than 50%, is known as

Ideal machine
Non-reversible machine
Neither reversible nor non-reversible machine
Reversible machine

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Engineering Mechanics
One joule is equal to

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

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MORE MCQ ON Engineering Mechanics

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