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 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

The key to successful corrosion protection should consider which of the following?

Good design detailing of the structure
The corrosivity of the environment
The type of steel used
A good coating specification

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

What is the most common form of corrosion protection?

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

When should coating inspection be carried out?

After the job is completed
Only when painting is being carried out
Throughout the whole job
Only for special structures

The corrosion of steel can be controlled by?

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

Which metals are thermally sprayed to structural steel?

Aluminium
Chromium
Zinc
Nickel

What are surface profile comparators used for?

To check the smoothness of a paint coating
To grade the roughness of a thermally sprayed coating
To grade the roughness of a blast cleaned steel surface
To check the standard of cleanliness of blast cleaned steel

When is acid pickling carried out?

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

Corrosion occurs as a result of an electrochemical reaction between?

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