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Engineering Mechanics

Engineering Mechanics
If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be

Maximum
Minimum
Zero
Infinity

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Engineering Mechanics
Moment of inertia of a circular section about its diameter (d) is

πd4/32
πd3/32
πd3/16
πd4/64

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Engineering Mechanics
The ideal angle of banking provided on the curves on roads depends upon

(Velocity)2 of the vehicle
Coefficient of friction between the road and vehicle contact point
Nature of the road surface
Weight of the vehicle

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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

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

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Engineering Mechanics
The law of motion involved in the recoil of gun is

Newton's third law of motion
Newton's second law of motion
None of these
Newton's first law of motion

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Engineering Mechanics
If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by

(v₁ - v₂)/(u₁ - u₂)
(u₁ - u₂)/(v₁ - v₂)
(u₂ + u₁)/(v₂ + v₁)
(v₂ - v₁)/(u₁ - u₂)

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