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Engineering Mechanics

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

Greater than
None of these
Equal to
Less than

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Engineering Mechanics
The moment of inertia of a solid cylinder of mass 'm', radius 'r' and length 'l' about the longitudinal axis or polar axis is

mr²/4
mr²/6
mr²/8
mr²/2

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Engineering Mechanics
The friction experienced by a body, when at rest, is known as

Limiting friction
Static friction
Dynamic friction
Coefficient of friction

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Engineering Mechanics
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is

tanθ
cosθ
cosecθ
sinθ

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Engineering Mechanics
The wheels of a moving car possess

Kinetic energy of translation only
Potential energy only
Kinetic energy of rotation only
Kinetic energy of translation and rotation both

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

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