ACA GAA HDG Inspector Exam Questions

Galvanizing & Corrosion Quiz

26. The galvanizing Inspector should:

Read, understand and clarify all aspects of the client’s specification Be aware of the requirements of AS/NZS 4680 and AS/NZS 1214 Know their responsibilities and duties regarding the work All of the above

27. The galvanizing inspector must not:

Make changes to the specification Read, understand and clarify all aspects of the client’s specification Ensure conformity with the specification Observe, test and report all relevant aspects of the galvanizing process

28. If the galvanizing inspector notices major welding defects in a fabrication, they should:

Make notes and point out to the Client and Galvanizer Make arrangements with the fabricator to get them repaired Ignore them, unless this is specifically part of your job description Ignore them, as the zinc will adequately protect such defects

29. It is a good idea to obtain the chemical analysis certificate for the steel to be galvanized because:

The alloy content indicates the method of weld repair that can be carried out The silicon and phosphorus content will indicate the expected appearance and thickness The carbon content will indicate the colour of the work after galvanizing The sulphur content will indicate the PPE required when observing the work

30. Venting of enclosed items to be galvanized is required to:

Allow air and gases to escape to avoid explosions To keep the air clean within the galvanizing plant Meet the EPA requirements of galvanizing plants in built-up areas To allow escape of noxious fumes during pickling

31. Items to be hot dip galvanized may require vent and drain holes:

To allow rain or condensation to drain from the finished item To ensure maximum coating thickness For easier handling of the items when dipping To allow draining of acids and zinc and to avoid explosions during processing

32. Distortion during galvanizing is most likely in which of the following:

Items that fit into the zinc bath Large items that require progressive dipping Circular, square or rectangular hollow sections Assemblies of equal or near equal cross section thickness

33. Welding slag on an item to be galvanized:

Must be removed only for items with a section thickness less than 6 mm Should only be removed when the client’s specification requires as it’s an appearance issue Must be removed by the fabricator before galvanizing Can be left by the fabricator as it will be removed during the caustic cleaning process

34. Ash deposits on a galvanized coating:

ACA GAA HDG Inspector Exam Questions

Hot Dip Galvanizing & Corrosion Fundamentals

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