ENGINEERING MECHANICS QUIZ

In ideal machines, mechanical advantage is __________ velocity ratio.

None of these

Greater than

Less than

Equal to

TRUE ANSWER : ?
YOUR ANSWER : ?

The moment of inertia of a square of side a about its diagonal is

a²/8

a³/12

a⁴/16

a⁴/12

TRUE ANSWER : ?
YOUR ANSWER : ?

The angle between two forces when the resultant is maximum and minimum respectively are

0° and 180°

90° and 180°

90° and 0°

180° and 0°

TRUE ANSWER : ?
YOUR ANSWER : ?

The unit of angular acceleration is

m/s2

m/s

rad/s2

N-m

TRUE ANSWER : ?
YOUR ANSWER : ?

The centre of percussion is below the centre of gravity of the body and is at a distance equal to

h/kG

h2/kG

h × kG

kG2/h

TRUE ANSWER : ?
YOUR ANSWER : ?

The ratio of limiting friction and normal reaction is known as

Angle of repose

Sliding friction

Coefficient of friction

Angle of friction

TRUE ANSWER : ?
YOUR ANSWER : ?

The motion of a wheel of a car is

Combined translation and rotational

Purely translation

Purely rotational

None of the listed here

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Straight line

Hyperbola

Elliptical

Parabola

TRUE ANSWER : ?
YOUR ANSWER : ?

The range of a projectile is maximum, when the angle of projection is

30°

60°

45°

90°

TRUE ANSWER : ?
YOUR ANSWER : ?

The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is

D/(d₁ - d₂)

D/(d₁ + d₂)

2D/(d₁ - d₂)

2D/(d₁ + d₂)

TRUE ANSWER : ?
YOUR ANSWER : ?

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