Grade 7 EMS Test: Production And Economic Growth

Netsport

Description

A test that assesses learners' knowledge of the production process and economic growth.

Sujets

• Littérature Sud-Africaine
• Littérature sud-africaine
• Collège
• Secondary education in France
• collège
• Collège
• Collège
• Post-primaire

Informations

• Publié par: Netsport
• Date de parution: 01 janvier 2022
• Nombre de lectures: 0
• Langue: English
• Poids de l'ouvrage: 1 Mo

Extrait

Economic & Management Sciences

Source A:

Source B:

Wood

Mechanical pulping Wood chips ground to separate fibres

Chemical pulping Removes lignin.

De- barking and chipping

Cleaning Fibres are washed, screened and dried

Production

De-inking

Coating Coating colour, containing pigments, binding agents, additives, is spread on paper

Headbox Mixture of water and fibre squirted onto moving mesh

Paper making Wood pulp diluted 100 times and fibre liquid run through machine

Paper for Recycling

Wire section Water is removed Fibres consolidate into a thin mat

Press section Web of wet papers squeezed, lowers water content to 50%

Pulping

Grade 7

Calendering Device with rollers through which paper runs

Drying Web of sheets passed through heated cast-iron cylinders

Finishing Paper wound into reels and sheets

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