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Timbers Flashcards

(22 cards)

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1
Q

What are the two main categories of timber?

A

Hardwoods and softwoods

Hardwoods come from deciduous trees, while softwoods come from coniferous trees.

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2
Q

Give three examples of hardwoods.

A
  • Oak
  • Mahogany
  • Teak
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3
Q

Give three examples of softwoods.

A
  • Pine
  • Cedar
  • Spruce
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4
Q

What are manufactured timbers?

A

Timber products made from wood fibers or particles, bonded together with adhesives

Examples include plywood, MDF, and particle board.

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5
Q

What is a characteristic of ferrous metals?

A

Contain iron

Examples include steel and cast iron.

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6
Q

What are non-ferrous metals?

A

Metals that do not contain iron

Examples include aluminum, copper, and zinc.

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7
Q

What is an alloy?

A

A mixture of two or more metals

Examples include brass (copper and zinc) and bronze (copper and tin).

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8
Q

What is paper primarily made from?

A

Wood pulp

Other materials can include recycled paper and additives.

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9
Q

What are the main types of boards derived from wood?

A
  • Plywood
  • MDF
  • Particle board
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10
Q

What are thermosetting polymers?

A

Polymers that harden permanently when heated

Examples include epoxy and phenolic resins.

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11
Q

What are thermoforming polymers?

A

Polymers that can be reshaped when heated

Examples include PVC and polystyrene.

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12
Q

Fill in the blank: _______ are made from a mixture of wood fibers and adhesives.

A

Manufactured timbers

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13
Q

True or False: Softwoods are typically denser than hardwoods.

A

False

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14
Q

What is one advantage of using manufactured timbers?

A

Consistent quality and reduced waste

Manufactured timbers are often more uniform in size and shape.

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15
Q

Give three examples of manufactured timbers

A

Chipboard, Plywood, Medium density fibreboard (MDF)

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16
Q

Give three examples of Papers

Study These Flashcards
A

Layout, Tracing, Cartridge

17
Q

Give three examples of card and board

Study These Flashcards
A

Corrugated card, Duplex, Solid White

18
Q

Three examples of ferrous metals

Study These Flashcards
A

Cast iron, Low carbon / mild steel, High carbon steel

19
Q

Three examples of Non-ferrous metals

Study These Flashcards
A

Zinc, Copper, Tin

20
Q

Three examples of Alloys

Study These Flashcards
A

High speed steel, Stainless steel, Brass

21
Q

Three examples of thermoforming polymers

Study These Flashcards
A

PET, PP, HIPS

22
Q

Three examples of thermosetting polymers

Study These Flashcards
A

Epoxy resin (ER), Polyester resin (PR), Urea formaldehyde (UF)

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