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Engineering Mechanics

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

Elliptical
Parabola
Straight line
Hyperbola

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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

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

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Engineering Mechanics
If a number of forces are acting at a point, their resultant is given by

√[(∑V)2 + (∑H)2]
√[(∑V)2 +(∑H)2 +2(∑V)(∑H)]
(∑V)2 +(∑H)2 +2(∑V)(∑H)
(∑V)2 + (∑H)2

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Engineering Mechanics
The acceleration of a particle moving with simple harmonic motion is __________ at the mean position.

Minimum
Maximum
Zero
None of these

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Engineering Mechanics
Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.)

None of these
tan(α - φ)/tanα
tan(α + φ)/tanα
tanα/tan (α + φ)

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Engineering Mechanics
The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of

0.7 r
0.8 r
0.6 r
0.5 r

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MORE MCQ ON Engineering Mechanics

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