Engineering Flashcards

1
Q

6 simple machines

A

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

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2
Q

a simple machine is designed with the purpose to…

A

make work easier

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3
Q

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

A

false

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4
Q

mechanical advantage

A

the manipulation of speed, distance, and force

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5
Q

an example of mechanical advantage

A

a crowbar

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6
Q

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

A

true

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7
Q

a simple machine that you use daily

A

car (wheel and axle)

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8
Q

a highway ramp is an example of

A

inclined plane

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9
Q

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

A

axe

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10
Q

a screw pulls things apart and is pushed into place

A

false

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11
Q

an example of a pulley is an escalator

A

false

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12
Q

why do we use simple machines?

A

to make work easier

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13
Q

_______ is responsible for the production of blood

A

bone marrow

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14
Q

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

A

180

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15
Q

the adult human body contains _______ bones

A

206

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16
Q

Explain what biomedical engineers may be responsible for in their careers

A

cast, meds, and prosthetic limbs

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17
Q

amputee

A

a person who has their limb removed

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18
Q

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

A

deficiency; form; brittle

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19
Q

identify the primary functions of bones

A

-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

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20
Q

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:

A

vitamin D

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21
Q

the human body contains 4 main types of joints

A

true

22
Q

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?

A

hospital, specialized clinic, pharmacy, and lab

23
Q

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

A

land mines

24
Q

_____________ of amputations in diabetics are a result of foot ulcers

A

85%

25
Q

prosthesis

A

an artificial part

26
Q

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

A

congenital birth defect

27
Q

what is the average cost of a prosthetic leg?

A

10- 20k

28
Q

an example of an immovable joint

A

cranium

29
Q

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

A

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

30
Q

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

A

true

31
Q

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

A

he designed a major truss bridge

32
Q

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

A

false

33
Q

the 1st modern suspension bridges were built in the…

A

1800’s

34
Q

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.

A

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

35
Q

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

A

it distributes its weight along the columns/edges

36
Q

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?

A

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

37
Q

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

A

true

38
Q

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

A

abutment- holds bridges up
pier- beams

39
Q

shear

A

it occurs when 2 structures are forced in opposite directions

40
Q

torsion

A

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

41
Q

resonance

A

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

42
Q

squares are stronger shapes when it comes to building bridges

A

false

43
Q

list at least 4 reasons for a bridge to be inspected

A

safety, stability, age, accidents, and erosion

44
Q

how is visual inspection of a bridge performed?

A

looking at them (visually)

45
Q

scour

A

erosion from water

46
Q

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

A

true

47
Q

explain wet excavation

A

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

48
Q

what does a life support engineer do in their career?

A

help build habits & maintain animals

49
Q

life support engineers are cross trained in what fields?

A

biomedical and civil

50
Q

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

A

true

51
Q

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

A

zoologist or vet