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Engineering Mechanics

Engineering Mechanics
A couple produces

None of these
Rotational motion
Translatory motion
Combined translatory and rotational motion

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Engineering Mechanics
The unit of moment of inertia of an area is

kg-m2
kg/m2
kg-m-s2
m4

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Engineering Mechanics
The range of projectile (R) on an upward inclined plane is

2u². sin (α + β). cos α/g. cos² β
g. cos² β/2u². sin (α + β). cos α
g. cos² β/2u². sin (α - β). cos α
2u². sin (α - β). cos α/g. cos² β

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

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

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Engineering Mechanics
The C.G. of a solid hemisphere lies on the central radius 3r

At distance — from the plane base 3r
At distance — from the plane base
At distance — from the plane base 3r
At distance — from the plane base 3r

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

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

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