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Engineering Mechanics

Engineering Mechanics
A cable with a uniformly distributed load per horizontal meter run will take the following shape

Hyperbola
Elliptical
Straight line
Parabola

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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°
120°
30°
90°

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Engineering Mechanics
The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)

2π. √(gh/kG² + h²)
2π. √(kG² + h²/gh)
1/2π. √(kG² + h²/gh)
1/2π. √(gh/kG² + h²)

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Engineering Mechanics
Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the width (b), is

db³/36
bd³/12
db³/12
bd³/36

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Engineering Mechanics
If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by

(u₂ + u₁)/(v₂ + v₁)
(v₁ - v₂)/(u₁ - u₂)
(u₁ - u₂)/(v₁ - v₂)
(v₂ - v₁)/(u₁ - u₂)

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Engineering Mechanics
An ideal machine is one whose efficiency is

Between 60 and 70 %
1
Between 70 and 80%
Between 80 and 90%

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MORE MCQ ON Engineering Mechanics

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