ENGINEERING MECHANICS QUIZ

A particle inside a hollow sphere of radius r, having coefficient of friction µ can rest up to height of

r/A

r/3

r/2

0.134 r

TRUE ANSWER : ?
YOUR ANSWER : ?

The ideal angle of banking provided on the curves on roads depends upon

Weight of the vehicle

(Velocity)2 of the vehicle

Nature of the road surface

Coefficient of friction between the road and vehicle contact point

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YOUR ANSWER : ?

The centre of gravity of an isosceles triangle with base (p) and sides (q) from its base is

(4p² - q²)/6

(p² + q²)/4

[√(4p² - q²)]/6

(p² - q²)/4

TRUE ANSWER : ?
YOUR ANSWER : ?

The periodic time of one oscillation for a simple pendulum is (where l = Length of the pendulum.)

2π. √(l/g)

(1/2π). √(l/g)

None of these

(1/2π). √(g/l)

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YOUR ANSWER : ?

The forces, which meet at one point, but their lines of action do not lie in a plane, are called

Intersecting forces

Coplanar non-concurrent forces

Non-coplanar non-concurrent forces

Non-coplanar concurrent forces

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YOUR ANSWER : ?

The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is

mr²/2

mr²/6

mr²/8

mr²/4

TRUE ANSWER : ?
YOUR ANSWER : ?

The impact between two lead spheres is approximately equal to an __________ impact.

Solid

Inelastic

None of these

Elastic

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YOUR ANSWER : ?

The algebraic sum of moments of the forces forming couple about any point in their plane is

Equal to the moment of the couple

Constant

Both of above are wrong

Both of above are correct

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YOUR ANSWER : ?

The process of finding out the resultant force is called __________ of forces.

Decomposition

Resolution

None of these

Composition

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YOUR ANSWER : ?

The unit of angular acceleration is

N-m

rad/s2

m/s2

m/s

TRUE ANSWER : ?
YOUR ANSWER : ?

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