Terms (Torsion, Shear and Moment)

Question 1

A solid or hollow circular shaft subjected to a twisting moment (T)

Answer 1

Torsional shearing stress

Question 2

A commonly used connection between two shafts. It consists of flanges rigidly attached to the ends of the shafts and bolted together.

Answer 2

Flanged bolt coupling

Question 3

Is a load that acts over a small distance that it can be assumed to act at a point

Answer 3

Concentrated load

Question 4

Acts over a considerable length of a beam

Answer 4

Distributed load or uniform load

Question 5

A load triangular in form

Answer 5

Uniformly varying load

Question 6

Tends to bend the beam

Answer 6

Bending moment

Question 7

Defined as the summation of moments about the centroidal axis of any selected section of all the loads, acting either to the left or to the right side of the section

Answer 7

Bending moment

Question 8

Upward acting external forces cause —— bending moments

Answer 8

Positive

Question 9

Downward force cause —— bending moments

Answer 9

Negative

Question 10

At a point where the beam changes its shape from concave up to concave down, we have what is called a——. It corresponds to the section of zero bending moment.

Answer 10

Point of inflection

Question 11

The bending moment under a particular load is a —— when the center of the beam is midway between that load and the consultant of all loads then on the span

Answer 11

Maximum

Question 12

Is the reaction to which the resultant load is nearest

Answer 12

Maximum reaction

Question 13

The stresses caused by the bending moment

Answer 13

Bending or flexure stress

Question 14

Search fibers remain on change in length and hence carry no stress

Answer 14

Neutral axis

Question 15

Determines the slope or deflection at any point in a beam as the resultant of the slopes and reflections at that point caused by each of the loads acting separately

Answer 15

Method of superposition