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Engineering Mechanics

Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion, at any instant is given by

ω2/y
ω.y
ω2.y
ω3.y

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Engineering Mechanics
A redundant frame is also called __________ frame.

Imperfect
None of these
Deficient
Perfect

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Engineering Mechanics
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

cosecθ
sinθ
cosθ
tanθ

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Engineering Mechanics
The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.

Square root
Inversely
Directly
None of these

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Engineering Mechanics
If a number of forces are acting at a point, their resultant will be inclined at an angle 'θ' with the horizontal, such that

tanθ = ΣH/ΣV
tanθ = √(ΣV + ΣH)
tanθ = ΣV × ΣH
tanθ = ΣV/ΣH

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Engineering Mechanics
Center of gravity of a thin hollow cone lies on the axis at a height of

One-half of the total height above base
One-fourth of the total height above base
One-third of the total height above base
Three-eighth of the total height above the base

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