Stock Forms, Types And Sizes
Bayani Gaba-gaba
A student designs a shelf 650 millimetres long because it looks right. The sheet it will be cut from is 2440 millimetres long, and 2440 divided by 650 is 3.75, so three shelves come out of that length and a quarter of the sheet is thrown away. Had the shelf been 610 millimetres, four would have come out with nothing left over. Forty millimetres of drawing, decided in a second, changed the material cost of the product by a quarter.
This lesson is about the sizes materials actually come in and the components you can actually buy. You will learn the commercially available types and sizes for papers and boards, timber based materials, metal based materials and polymers, what each is sold by, and the standard components that go with them: fasteners, seals and bindings; woodscrews, hinges and knock-down fittings; rivets, machine screws, nuts and bolts. Then you will use them, calculating how many parts come out of a sheet and how to lose less of it. This is specialist technical principles content, examined in Section B of Paper 1, and it is the topic the paper's own maths column leans on hardest.
Manufura
- Commercially available types and sizes of materials and components.
- Papers and boards:
- sheet, roll and ply
- sold by size e.g. A3, thickness, weight and colour
- standard components e.g., fasteners, seals and bindings
- cartridge paper and corrugated card.
- Timber based materials:
- planks, boards and standard mouldings
- sold by length, width, thickness and diameter
- standard components e.g., woodscrews, hinges, Knock-Down (KD) fittings.
- Metal based materials:
- sheet, rod, bar and tube
- sold by length, width, thickness, and diameter
- standard components e.g., rivets, machine screws, nuts, and bolts.
- Polymers:
- sheet, rod, powder, granules, foams, and films
- sold by length, width, gauge and diameter
- standard components e.g., screws, nuts and bolts, hinges.
Taswirar tunani
An zana wannan batu don ka ga yadda ra'ayoyi ke hadewa.
Bude taswirar tunani a cikin manhaja
Takardar Darasi
Cikakken Bayanin Darasi Yana Kan Manhajar Green Bridge
Sami manhajar Green Bridge CBT a wayarka ko kwamfutarka domin cikakken laburaren IGCSE: takardun jarrabawar baya, tsarin kimantawa, taswirar tunani, katunan karatu da darussan sauti.
Nazarin Darasi
Barka da kammala darasi akan Stock Forms, Types And Sizes. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which one of the following is a stock form for polymers but not for timber? A. Board B. Granules C. Plank D. Standard moulding Answer: B
- Paper and board are sold by weight in A. grams per square metre. B. kilograms per sheet. C. millimetres of thickness. D. newtons per square millimetre. Answer: A
- In an M8 machine screw, the 8 refers to the A. length in millimetres. B. spanner size in millimetres. C. thread diameter in millimetres. D. number of threads per centimetre. Answer: C
- A part 400 millimetres long is to be cut from a sheet 2440 millimetres long. How many fit along that length, ignoring the saw kerf? A. 5 B. 6 C. 7 D. 8 Answer: B
- Which standard component is used in flat pack furniture because manufactured board holds a screw poorly in its edge? A. A knock-down fitting B. A pop rivet C. A machine screw D. A staple Answer: A
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Stock Forms, Types And Sizes? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
Sauke Manhajar Daga Google Playstore
Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.
