Corrosion protection quiz

Please answer the following 10 multiple choice questions, then click 'submit' to check the result. The pass mark for a CPD certificate is 8 out of 10, and you may retake the quiz as many times as you wish, but the questions will vary! Please note that one, two, three or all of the possible answers presented for each question may be right, and to gain a mark for that question all correct answers must be identified.

Good luck

Corrosion protection

What is the most common form of corrosion protection?

Hot dip galvanizing
Paint coatings
Thermally sprayed metal coatings
Paint and metal coatings together

Which standard refers to 'the treatment of welds, edges and other surface imperfections'?

BS 7079
ISO 8501-3
BS EN ISO 8504-3
BS EN ISO 8503-5

Corrosion occurs as a result of an electrochemical reaction between?

Steel and water
Steel, water and oxygen
Water and dissimilar metals
Abrasives and water

The corrosion of steel can be controlled by?

Coupling to a more noble metal
Paint coatings
Metal coatings
Washing with chlorinated water

Which standard is the product specification for hot dip galvanizing?

BS EN ISO 14713-1
BS EN ISO 2063
BS EN ISO 1461
BS EN ISO 12944

UHP water jetting is used to?

Create a surface profile
Remove paint
Remove soluble salts
Clean a paint coating

What type of surface 'roughness' should steel have before being thermally metal sprayed?

Rounded with high profile amplitude
Angular with high profile amplitude
Rounded with low profile amplitude
Angular with low profile amplitude

In which 'Corrosivity Category' can steel be used without corrosion protection?

C1
C2
C3
C4

When is acid pickling carried out?

Before coating small components
As a pre-treatment for painting
Before hot dip galvanizing
Never

Which of the following surface preparation methods can be 100% efficient in removing all rust and millscale?

Rotary wire brushing
Needle gunning
Abrasive blast cleaning
Scraping