ES AMACE

Tensile

When equal and opposite forces applied to a body tend to elongate it, the stress produced is __

Normal stress

The stress which acts in a direction perpendicular to the are

Varignon's theorem

States that the moment of a force about a point is equal to the sum of the moments of the
force's components about the point

Hooke's law

States that strain produced within elastic limits is proportional to the stress producing it.

Mass

The quantity of matter in a body is its _____

a. If the resultant force acting on a particle is zero, the particle remains at rest (if originally at
rest) or will move with constant speed in a straight line (if originally in motion)

Newton's first law of motion states that:

a. If the resultant force acting on a particle is zero, the particle remains at rest (if originally at
rest) or will move with constant speed in a straight line (if originally in motion)

b. If the resultant force acting on a particle is not zero, the particle will have an acceleration
proportional to the magnitude of the resultant force and in the direction of this resultant force
(f=ma)

c. Each force (of action) has an equal and opposite force of reaction

d. None of the above

Shear-force diagram

A diagram which shows the variations of the axial load for all sections in the span of a beam

b. Rubber

Which of the following is a non-hookean material?

a. Steel
b. Rubber
c. Aluminum
d. Copper

a. Bending stress is the same at every section along its longitudinal axis

A beam is said to be of uniform strength if _________

a. Bending stress is the same at every section along its longitudinal axis

b. Shear stress is the same through the beam

c. Deflection is the same throughout the beam

d. None of the given choices

False

True or false. The types of normal stresses are shear and bending.

Rigid body

A combination of a large number of particles in which all particles remain at a fixed distance
from one another before and after applying a load.

N/mm^2

What is the unit of compressive stress?

Center of gravity

The point through which the whole weight of the body acts is called_____

Zero

_______ positive/ negative bending moments occur where shear force changes its signs.

Rigid

A _______ body is one which does not deform. The distance between the individual particles
making up the body remains

Graphical

Shear force is diagram is a/an _______ representation of shear force plotted as ordinate

Free body diagram

A _______ isolates a body from its surroundings, and one considers all the forces, and only
those forces, acting on that body.

Gravity

Refers to the gravitational force (attraction) of the earth acting in a body.

Yielding point

The stress at which extension if a material takes place more quickly as compared to the increase
in load,

kN

S.I unit for shear force

Equilibrium

A condition in which the resultants of all forces acting on the body is zero

kN m

S.I unit for bending moment

Creeping

The phenomenon of slow growth of a strain under a steady tensile stress is called __________.

Neutral axis

In a beam, which is the layer that is neither elongated nor shortened during bending?

False

True or false: statics of rigid bodies is the study of materials, objects, or particles at rest or
moving under constant velocity