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Engineering Mechanics

Engineering Mechanics
Moment of inertia of a circular section about an axis perpendicular to the section is

πd3/32
πd4/64
πd3/16
πd4/32

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Engineering Mechanics
If the resultant of two equal forces has the same magnitude as either of the forces, then the angle between the two forces is

60°
90°
30°
120°

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Engineering Mechanics
The resultant of the two forces ‘P’ and ‘Q’ is ‘R’. If ‘Q’ is doubled, the new resultant is perpendicular to ‘P’. Then

Q = 2R
None of the listed here
Q = R
P = Q

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Engineering Mechanics
The point, through which the whole weight of the body acts, irrespective of its position, is known as

Center of percussion
Center of gravity
Center of mass
Moment of inertia

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Engineering Mechanics
If a body is acted upon by a number of coplanar non-concurrent forces, it may

Be completely at rest
Move in any one direction rotating about itself
All of these
Rotate about itself without moving

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Engineering Mechanics
When the spring of a watch is wound, it will possess

Electrical energy
Strain energy
Kinetic energy
Heat energy

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MORE MCQ ON Engineering Mechanics

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