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Engineering Mechanics

Engineering Mechanics
Mass moment of inertia of a thin rod about its one end is ___________ the mass moment of inertia of the same rod about its mid-point

Thrice
Twice
Four times
Same as

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Engineering Mechanics
The motion of a wheel of a car is

Purely translation
Purely rotational
Combined translation and rotational
None of the listed here

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Engineering Mechanics
Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)

tan(α + φ)/tanα
tanα/tan (α + φ)
tan(α - φ)/tanα
None of these

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Engineering Mechanics
Which of the following is an equation of linear motion?(where, u and v = Initial and final velocity of the body, a = Acceleration of the body, and s = Displacement of the body in time t seconds.)

s = u.t + ½ a.t2
v2 = u2 + 2a.s
v = u + a.t
All of these

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Engineering Mechanics
The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.)

t = g cos β/2u sin (α + β)
t = 2u sin (α + β)/g cos β
t = g cos β/2u sin (α - β)
t = 2u sin (α - β)/g cos β

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Engineering Mechanics
During elastic impact, the relative velocity of the two bodies after impact is __________ the relative velocity of the two bodies before impact.

Equal to
Equal and opposite to
Greater than
Less than

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MORE MCQ ON Engineering Mechanics

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