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Engineering Mechanics

Engineering Mechanics
One kg force is equal to

7.8 N
9.8 N
12 N
8.9 N

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Engineering Mechanics
When a body of mass 'm' attains a velocity 'v' from rest in time 't', then the kinetic energy of translation is

mgv2
0.5 mv2
mv2
0.5 mgv2

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Engineering Mechanics
A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.

Equal to
None of these
Less than
Greater than

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Engineering Mechanics
Work done is said to be zero, when

None of these
No force acts on a body but some displacement takes place
Some force acts on a body, but displacement is zero
Either (A) or (B)

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Engineering Mechanics
A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)

P = W (cosα + μsinα)
P = W tan (α + φ)
P = W (sinα + μcosα)
P = W tanα

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Engineering Mechanics
The friction experienced by a body, when in motion, is known as

Limiting friction
Static friction
Rolling friction
Dynamic friction

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MORE MCQ ON Engineering Mechanics

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