Engineering

Question 1

6 simple machines

Answer 1

wedge, screw, lever, pulley, inclined plane, & wheel and axle

Question 2

a simple machine is designed with the purpose to…

Answer 2

make work easier

Question 3

work is the application of stress on an object added to the distance the object travels when force is applied.

Answer 3

false

Question 4

mechanical advantage

Answer 4

the manipulation of speed, distance, and force

Question 5

an example of mechanical advantage

Answer 5

a crowbar

Question 6

the ancient egyptians, aztecs, and mayans used simple machines aid in the construction of their respective pyramids.

Answer 6

true

Question 7

a simple machine that you use daily

Answer 7

car (wheel and axle)

Question 8

a highway ramp is an example of

Answer 8

inclined plane

Question 9

an example of a wedge that pushes materials apart and cuts things.

Answer 9

axe

Question 10

a screw pulls things apart and is pushed into place

Answer 10

false

Question 11

an example of a pulley is an escalator

Answer 11

false

Question 12

why do we use simple machines?

Answer 12

to make work easier

Question 13

_______ is responsible for the production of blood

Answer 13

bone marrow

Question 14

the hinge joint allows for _________ degrees of motion, in one direction.

Answer 14

180

Question 15

the adult human body contains _______ bones

Answer 15

206

Question 16

Explain what biomedical engineers may be responsible for in their careers

Answer 16

cast, meds, and prosthetic limbs

Question 17

amputee

Answer 17

a person who has their limb removed

Question 18

osteoporosis occurs when bone mass has __________, due to lack of calcium and vitamin D. Holes _____________ within bones, leading to weak and __________ bones.

Answer 18

deficiency; form; brittle

Question 19

identify the primary functions of bones

Answer 19

-bones contain bone marrow, in turn bones are responsible for the production of blood
-bones protect your vital organs and allow you to stand upright
-bones work synonymously with muscles to allow for movement

Question 20

bone strength relies on several factors that do not naturally occur in our bodies, but are important. To ensure healthy bones one should have a healthy amount of the following substances:

Answer 20

vitamin D

Question 21

the human body contains 4 main types of joints

Answer 21

true

Question 22

biomedical engineers are responsible for creating various types of devices designed to aid humans with health issues. Where may a biomedical engineer work in their career?

Answer 22

hospital, specialized clinic, pharmacy, and lab

Question 23

in countries such as cambodia and angola the main reason for amputation of limbs are resulting from ___________.

Answer 23

land mines

Question 24

_____________ of amputations in diabetics are a result of foot ulcers

Answer 24

85%

Question 25

prosthesis

Answer 25

an artificial part

Question 26

a ______ is when an arm or leg does not form normally as a baby grows within the uterus, resulting in a birth defect.

Answer 26

congenital birth defect

Question 27

what is the average cost of a prosthetic leg?

Answer 27

10- 20k

Question 28

an example of an immovable joint

Answer 28

cranium

Question 29

phantom pain is experienced in amputees and victims of limb loss. explain this illness

Answer 29

you feel pain where the limb or part no longer is.

Question 30

civil engineers are responsible for designing infrastructure for public use such as bridges, hospitals, public transportation, water systems, and roads

Answer 30

true

Question 31

who is thomas willis pratt, and what is he known for?

Answer 31

he designed a major truss bridge

Question 32

the lake Pontchartrain causeway is an example of a cable-stayed bridge

Answer 32

false

Question 33

the 1st modern suspension bridges were built in the...

Answer 33

1800's

Question 34

explain the relevance and relationship between the type of bridge that is to be built and the site that it is to be built on.

Answer 34

environmental and geological concerns factor in to make sure it is safe, reliable, and efficient

Question 35

identify how an arch bridge uses the force of gravity to hold it in place

Answer 35

it distributes its weight along the columns/edges

Question 36

site investigation and geotechnical analysis are indispensable components of deep excavation projects. By conducting thorough investigations and analyzing the gathered data, engineers can help do what?

Answer 36

so that they can be more precise and reduce chance of failure

Question 37

the longer a beam bridge is and the more people, cars, and other things it carries, the heavier its total load.

Answer 37

true

Question 38

what piers and abutments are, and how they aid in the function of bridge stability.

Answer 38

abutment- holds bridges up pier- beams

Question 39

shear

Answer 39

it occurs when 2 structures are forced in opposite directions

Question 40

torsion

Answer 40

the force of wind that causes the roadway on a suspension bridge to twist

Question 41

resonance

Answer 41

the vibration that occurs in a bridge (gets bigger overtime & causes problems)

Question 42

squares are stronger shapes when it comes to building bridges

Answer 42

false

Question 43

list at least 4 reasons for a bridge to be inspected

Answer 43

safety, stability, age, accidents, and erosion

Question 44

how is visual inspection of a bridge performed?

Answer 44

looking at them (visually)

Question 45

scour

Answer 45

erosion from water

Question 46

tolls pay for private bridges, tax dollars pay for public bridges

Answer 46

true

Question 47

explain wet excavation

Answer 47

using high pressured water to dig a hole with (pressure washing)

Question 48

what does a life support engineer do in their career?

Answer 48

help build habits & maintain animals

Question 49

life support engineers are cross trained in what fields?

Answer 49

biomedical and civil

Question 50

when designing any habitat, dexterity and sleeping patterns need to be taken into consideration prior to design

Answer 50

true

Question 51

who may a life support engineer contact to find out specific information about an animals needs?

Answer 51

zoologist or vet