MD1

Question 1

Branch of engineering that deals with energy conversion and design of machines

Answer 1

Mechanical Engineering

Question 2

process of devising a component, a process or a system to satisfy a desired need

Answer 2

Design

Question 3

a process in which scientific principles and the tools in engineering - mathematics, graphics, computer, English, etc

Answer 3

Engineering design

Question 4

are used to produce a plan, which when carried out, will satisfy a human need

Answer 4

Engineering design

Question 5

combination of several mechanical components that are properly arranged or assembled to cause the forces of nature to produce a desired work with constrained motion

Answer 5

Machine

Question 6

modifies mechanical work

Answer 6

Machine

Question 7

skeleton for any machine.

Answer 7

Mechanism

Question 8

Some Considerations in Engineering Design

Answer 8

Strength, Rigidity, Cost, Safety, Reliability, Weight, Volume, space, Aesthetics, Manufacturability, Legal requirements

Question 9

prime considerations in Mechanics of Materials since they are treated with the use of stress and deformation formulas

Answer 9

Strength and Rigidity

Question 10

Two General Types of Stresses

Answer 10

Normal Stress and Shear Stress

Question 11

a stress type in which the direction of the applied load is perpendicular to the resisting area of the member

Answer 11

Normal Stress

Question 12

Includes the following stresses: tensile stress, compressive stress, bearing stress, and bending stress

Answer 12

Normal Stress

Question 13

a stress type in which the direction of the applied load is parallel or tangent to the resisting area of the member

Answer 13

Shear Stress

Question 14

includes the following stresses: direct shear, induced or indirect shear, punching shear, and torsional shear stress

Answer 14

Shear Stress

Question 15

constant at any section along the length of the member under the axial load F (uniform stress distribution)

Answer 15

Stress Magnitude

Question 16

also called contact stress or a crushing stress. Riveted joint

Answer 16

Bearing Stress

Question 17

most complicated of all the normal stresses

Answer 17

Bending Stress or Flexural Stress

Question 18

Its magnitude differs at any section in the beam. Most calculations are focused on the section of the beam having the greatest magnitude of stress, or the section having the greatest deflection

Answer 18

Bending Stress or Flexural Stress

Question 19

Bending is no longer a uniformly distributed stress. In bending, tension & compression occur simultaneously. The maximum stress happens at a fiber farthest from the neutral axis.

Answer 19

Beam Deflection

Question 20

Shear stress where the stress distribution is uniform or constant, and is located in one section only,

Answer 20

Single Shear

Question 21

Shear stress where two identical sections or areas resist the load

Answer 21

Double Shear

Question 22

produces a shear stress and a shear deformation, but no change in dimension, only a change of position

Answer 22

Torque

Question 23

Where does the maximum torsional stress in the shaft is located?

Answer 23

At the outermost layer

Question 24

What does cross sections other than round require for their stress and deflection formulas?

Answer 24

Correction Factors

Question 25

Where does the shear stress in beam is generally maximum at?

Answer 25

At the neutral axis

Question 26

bending stress in beam is what value at the neutral axis

Answer 26

Zero

Question 27

Poisson’s ratio of the material

Answer 27

0.25 to 0.3 for metals

Question 28

Positive when expansion for heating and negative when contraction for cooling

Answer 28

Thermal Deformation and Thermal Stress

Question 29

Deformation is converted to a load deformation when

Answer 29

Deformation is prevented from occurring due to some restriction or constraint