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Engineering Mechanics

Engineering Mechanics
The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

2P cotθ/2
2P sinθ/2
2P cosθ/2
2P tanθ/2

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Engineering Mechanics
The coefficient of restitution for inelastic bodies is

More than one
Zero
One
Between zero and one

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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
None of these
Either ‘A’ or ‘B’

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Engineering Mechanics
Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its C.G. and parallel to the base, is

bh3/8
bh3/4
bh3/36
bh3/12

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Engineering Mechanics
The maximum efficiency of a screw jack is

(1 - sinφ)/(1 + sinφ)
(1 + sinφ)/(1 - sinφ)
(1 + tanφ)/(1 - tanφ)
(1 - tanφ)/(1 + tanφ)

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Engineering Mechanics
The maximum frictional force which comes into play when a body just begins to slide over another surface is called

Rolling friction
Limiting friction
Kinematic friction
Sliding friction

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MORE MCQ ON Engineering Mechanics

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