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Biology (condesnsed) > All content (Tech) > Flashcards

All content (Tech) Flashcards

1
Q

What is “design for maintenance”, and why is it used

A

When products are designed to be repaired, not replaced, which has a smaller impact on the environment

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2
Q

What is a kinetic pumped storage system

A

A
When energy demand is low, water is pumped from a lower reservoir, to a higher one. When demand is high, the water is released through turbines into the lower one, generating HEP

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3
Q

What is metal foam

A

Liquid metals, which have been pumped with air, and allowed to set.

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4
Q

Where is metal foam used?

A

In crash protectors

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5
Q

What is an example of a shape memory alloy

A

Nitinol

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6
Q

What are thermo-chromic materials?

A

materials which change colour, depending on a heat stimulus

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7
Q

What are photo-chromic materials?

A

materials which change colour, depending on a light stimulus

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8
Q

What is an example of a composite mateiral

A

Carbon fibre reinforced plastic

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9
Q

What is virtual marketing

A

Advertising a product using social media
Celebrities and influencers can promote products

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10
Q

What does FMS stand for

A

Flexible Manufacturing systems

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11
Q

What are FMS

A

consist of computer numerical control machines, working alongside a production line. These machines are easily adaptable and can change based off of the product being made

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12
Q

What is lean manufacturing

A

Lean manufacture aims to minimise waste but saving money and improving efficiency

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13
Q

Second order lever example

A

Wheelbarrow

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14
Q

First order lever example

A

See saw

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15
Q

Example of third order lever

A

tweezers

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16
Q

What is used to turn the direction of motion by 90 degrees

A

A bell crank linkage

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17
Q

What is used to keep the direction of motion the same

A

Push pull linkage

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18
Q

What is used to change the direction of motion

A

Reverse motion linkage

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19
Q

What is a cam

A

The rotating part

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20
Q

3 types of cam

A

Pear, circle, snail

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21
Q

3 types of follower

A

Flat follower
Knife edge follower
Roller follower

22
Q

Which gear will rotate faster - large or small

A

the smaller gear will rotate faster

23
Q

Name 3 softwoods

A

Pine, Spruce and Larch

24
Q

Name 2 alloys

A

Brass and stainless steel

25
Q

Use of thermoforming plastics

A

Vacuum forming

26
Q

Uses of PVC

A

Pipes and raincoats

27
Q

What are uses of LDPE

A

Plastic wraps, bin bags

28
Q

Example of thermosetting plastic

A

Epoxy resin

29
Q

Example of thermoforming plastic

A

Acrylic

30
Q

What is added to paper to make rag paper

A

cotton

31
Q

How is paper strengthened

A

Paper is strengthened when it is laminated (layered) with other paper/boards.

32
Q

What is cartridge paper

A

rough surface,
thicker than usual

33
Q

What is layout paper

A

smooth,
translucent and thin

34
Q

What is tracing paper

A

very translucent
good for copying/tracing images

35
Q

What actions are B and Q taking to reduce the negative environmental impact of wood production

A

Giving away free wood, which would normally be discarded

36
Q

What is meant by mature timber

A

trees that is the correct age for timber

37
Q

What does PAR stand for and mean

A

Planed all round, a process done to wood planks to smooth them out

38
Q

What does seasoning mean

A

Drying wood so it can be used

39
Q

What are the two methods of seasoning

A

Air drying
Kiln drying

40
Q

What is continuous production

A

Production which runs 24 hours a week

41
Q

What is a coping saw used to cut

A

woods or plastics, especially to cut bends

42
Q

What is used to score parallel lines

A

A marking gauge

43
Q

What is used to mark metal

A

Scriber

44
Q

3 types of file

A

Flat file
Round file
Three square file

45
Q

3 types of design

A

Iterative design
User centred design
Systems thinking design

46
Q

What is a PCB

A

Non conductive boards which contain copper tracks, for circuits to be built on

47
Q

What is the gear which the torque is applied to called

A

The driver gear

48
Q

What is the final gear in the train called

A

The driven gear

49
Q

What is an idler gear

A

Gears in between the driver and the driven gear, used to change direction

50
Q

How do you increase the speed of the driven gear

A

Make the driven gear smaller

Biology (condesnsed) (6 decks)

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