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Engineering Mechanics

Engineering Mechanics
The maximum acceleration of a particle moving with simple harmonic motion is

ωr
ω/r
ω
ω²r

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

Square root
Directly
None of these
Inversely

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Engineering Mechanics
The angle between two forces when the resultant is maximum and minimum respectively are

180° and 0°
90° and 180°
0° and 180°
90° and 0°

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Engineering Mechanics
The wheels of a moving car possess

Kinetic energy of rotation only
Kinetic energy of translation only
Potential energy only
Kinetic energy of translation and rotation both

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

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Engineering Mechanics
The maximum efficiency of a lifting machine is

1/m
m/V.R.
V.R./m
1/(m × V.R.)

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MORE MCQ ON Engineering Mechanics

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