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Engineering Mechanics

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

Strain energy
Heat energy
Kinetic energy
Electrical energy

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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
Q = R
P = Q
None of the listed here

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Engineering Mechanics
The unit of angular velocity is

Revolutions/min
rad/s
m/min
Both (B) and (C)

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Engineering Mechanics
A ladder is resting on a rough ground and leaning against a smooth vertical wall. The force of friction will act

Upward at its upper end
Downward at its upper end
Perpendicular to the wall at its upper end
Zero at its upper end

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Engineering Mechanics
The energy possessed by a body, for doing work by virtue of its position, is called

Kinetic energy
Chemical energy
Electrical energy
Potential energy

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Engineering Mechanics
When a body of mass moment of inertia 'I' (about a given axis) is rotated about that axis with an angular velocity to, then the kinetic energy of rotation is

Iω
Iω2
0.5 Iω
0.5 Iω2

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MORE MCQ ON Engineering Mechanics

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