Engineering

Question 1

What is a moment

Answer 1

Turing effect of a force

Question 2

Formula for moment

Answer 2

force x perpendicular distance

Question 3

What is mass

Answer 3

amount of matter in a object, measured in kg and g
Does not matter where it is will stay the same

Question 4

What is weight

Answer 4

force due to gravity acting on mass
measured in Newtons
Depending on location it can change.

Question 5

What is members

Answer 5

Transfer loads, what holds up the structure

Question 6

What is joints

Answer 6

connection between members

Question 7

What is supports

Answer 7

points, transfer loads to the ground

Question 8

What is tension

Answer 8

members being pulled

Question 9

What is compression

Answer 9

members being pushed

Question 10

Struts

Answer 10

Members that mainly resist compression (being pushed)

Question 11

Ties

Answer 11

Members that mainly resist tension (being pulled)

Question 12

An unstable structure

Answer 12

can change shape or collapse

Question 13

A stable structure

Answer 13

A stable structure maintains its shape under load

Question 14

A redundant

Answer 14

structure contains extra members that improve stability or safety

Question 15

Tensile Strength

Answer 15

Tensile Strength
Maximum pulling stress before failure.

Question 16

Compressive Strength

Answer 16

Compressive Strength
Maximum crushing stress before failure.

Question 17

Shear Strength

Answer 17

Shear Strength
Resistance to sliding forces.

Question 18

Elasticity

Answer 18

Elasticity
Ability to return to original shape after load removal. image.png

Question 19

Plasticity

Answer 19

Plasticity
Permanent deformation after load removal

Question 20

Ductility

Answer 20

Ductility
Ability to stretch without fracture.

Question 21

Malleability

Answer 21

Malleability
Ability to be hammered and rolled out into thin sheets.

Question 22

Brittleness

Answer 22

Brittleness
Failure without significant deformation.

Question 23

Toughness

Answer 23

Toughness
Ability to absorb energy before fracture.

Question 24

Levers

Answer 24

Rigid bodies capable of rotating on a point on themselves to amplify imput force

Question 25

Structures and eqilibrium

Answer 25

structure remains stationary when all conditions of equilibrium is met

Question 26

dead loads

Answer 26

weight of structure

Question 27

live loads

Answer 27

loads that change (ppl ,vehicles)

Question 28

environmental loads

Answer 28

Wind ,rain, natural effects

Question 29

Conditions of equilibrium

Answer 29

sum of horizontal force of 0 sum of vertical force of 0 sum of moment is 0

Question 30

Resultant force

Answer 30

single force obtatained by combining a system of forces

Question 31

Gravity

Answer 31

force of attraction between any 2 objects that have mass

Question 32

concurrent forces

Answer 32

2 or more forces, lines of action intersect at the same point

Question 33

co-planner forces

Answer 33

forces acting on the same plane

Question 34

co-liner forces

Answer 34

lie in the same plane and have the same line of action

Question 35

Principle of tranmissblity

Answer 35

force acting on any point on a rigid body may be replaced by a force of equal magnitude and direction, acting on anpther point on the rigid body having same line of action