Strength of Materials
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one

hyperbola
ellipse
circle
parabola

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Strength of Materials
If a rigid body is in equilibrium under the action of three forces, then

the lines of action of these forces are parallel
these forces are equal
the lines of action of these forces meet in a point & the lines of action of these forces are parallel
the lines of action of these forces meet in a point

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Strength of Materials
Center of percussion is

the point of metacentre
the point of C.G.
the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
point of suspension

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