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Engineering Mechanics

Engineering Mechanics
The motion of a particle round a fixed axis is

Translatory
Translatory as well as rotary
Rotary
Circular

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

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Engineering Mechanics
A block of mass 20 kg lying on a rough horizontal plane is connected by a light string passing over a smooth pulley to another mass 5 kg, which can move freely in the Vertical direction, as shown in the below figure. The tension in the string will ___________ with the increase in coefficient of friction.

Decrease
Increase
Not be effected
None of these

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Engineering Mechanics
The forces which meet at one point, but their lines of action __________ on the same plane, are Known as non-coplanar concurrent forces.

Either A or B
Do not lie
None of these
Lie

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Engineering Mechanics
Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane.

Meet
Do not meet
Either ‘A’ or ‘B’
None of these

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Engineering Mechanics
The unit of angular acceleration is

m/s
N-m
rad/s2
m/s2

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MORE MCQ ON Engineering Mechanics

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