WEEK 8, OCC141, LO3, 3.1 - 3.8, Prepare Metal

Which TWO of the following are ferrous metasl

• Wrought Iron

• Copper

• Zinc

• Cast Iron

Which of the following is NOT a non-ferrous metal

• Copper

• Zinc

• Cast iron

• Aluminium

Relating to the properties of metal, which statement is true

• Porosity means , how much air and water can pass through and weaken the metal

• Porosity means, Whether it gets larger when exposed to heat

• Porosity means, How well a metal will return to its original shape

• Porosity means, Whether the matal can is able to carry electricity

Galvanising metal process is known as ;

• A process that removes millscale

• A process that will encourage rust

• A sacrificial coating

• A coating of a ferrous metal

The most suitable primer for a non-ferrous metal is:

• water based primer

• Etch primer

• Metal primer

• Oil resin undercoat

Electrolysis is

• Another name for millscale

• A compound for a metal coating

• An electrical hazard

• A process that drives corrosion

Which of these is a high toxic primer?

• Aluminium

• Red lead

• Acrylic

• White wood primer

Millscale is known as:

• Heavy rust due to metal exposure to the elements

• A flaky surface formed during production of ferrous metal

• A reaction between two metals

• A reaction between metal and oxygen

Which of the following metals can be used for decorative and complex shapes?

• Wrought Iron

• Mild sheet steel

• Cast iron

• Steel

What is the main standards used to classify the preparation of ferrous metals?

• American Standards

• The British Institute Standards

• The Swedish Standards

• The German Standards