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Engineering Mechanics

Engineering Mechanics
The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

2P tanθ/2
2P cotθ/2
2P cosθ/2
2P sinθ/2

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Engineering Mechanics
The moment of inertia of a square of side (a) about an axis through its center of gravity is

a4/36
a4/12
a4/8
a4/4

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Engineering Mechanics
A framed structure is imperfect, if the numbers of members are __________ (2j - 3).

Either (B) or (C)
Equal to
Greater than
Less than

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

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

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

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Engineering Mechanics
The ratio of limiting friction and normal reaction is known as

Coefficient of friction
Angle of friction
Sliding friction
Angle of repose

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MORE MCQ ON Engineering Mechanics

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