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Engineering Mechanics

Engineering Mechanics
If n = number of members and y = number of joints, then for a perfect frame, n = ?

43865
43864
43892
43832

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

Limiting friction
Rolling friction
Dynamic friction
Static friction

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Engineering Mechanics
Three forces acting on a rigid body are represented in magnitude, direction and line of action by the three sides of a triangle taken in order. The forces are equivalent to a couple whose moment is equal to

None of these
Twice the area of the triangle
Area of the triangle
Half the area of the triangle

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Engineering Mechanics
The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be

r/2
r/A
2r/3
3r/2

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Engineering Mechanics
The maximum efficiency of a screw jack is

(1 + tanφ)/(1 - tanφ)
(1 - tanφ)/(1 + tanφ)
(1 + sinφ)/(1 - sinφ)
(1 - sinφ)/(1 + sinφ)

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Engineering Mechanics
The mechanical advantage of a lifting machine is the ratio of

Distance moved by effort to the distance moved by load
Load lifted to the effort applied
All of these
Output to the input

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MORE MCQ ON Engineering Mechanics

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