STRENGTH OF MATERIALS QUIZ

According to principle of transmissibility of forces, the effect of a force upon a body is

Different at different points in its line of action

Minimum when it acts at the C.G. of the body

Maximum when it acts at the center of gravity of a body

The same at every point in its line of action

TRUE ANSWER : ?
YOUR ANSWER : ?

If a suspended body is struck at the centre of percussion, then the pressure on die axis passing through the point of suspension will be

Maximum

Minimum

Zero

Infinity

TRUE ANSWER : ?
YOUR ANSWER : ?

Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction

along the plane

at an angle equal to the angle of friction to the inclined plane

vertically

horizontally

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is not the unit of distance ?

light year

angstrom

milestone

millimeter

TRUE ANSWER : ?
YOUR ANSWER : ?

A number of forces acting at a point will be in equilibrium if

Sum of resolved parts in any two perpendicular directions are both zero

All of them are inclined equally

Their total sum is zero

Two resolved parts in two directions at right angles are equal

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Elliptical

Parabola

Hyperbola

Straight line

TRUE ANSWER : ?
YOUR ANSWER : ?

The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60Â° produce resultant of Vl3 kg. These forces are

V5 and V5

3 and 1 kg

2 and 5

2 and V6

TRUE ANSWER : ?
YOUR ANSWER : ?

Coulomb friction is the friction between

solids and liquids

bodies having relative motion

two lubricated surfaces

two dry surfaces

TRUE ANSWER : ?
YOUR ANSWER : ?

A force acting on a body may

change its motion

retard its motion

All of the listed here

introduce internal stresses

TRUE ANSWER : ?
YOUR ANSWER : ?

The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is

same

four times

half

double

TRUE ANSWER : ?
YOUR ANSWER : ?