C33 Paint and Coating Types 2

Question 1

Which type of paint binder provides the best resistance to alkali attack when painting fresh concrete or masonry?

Accepted Answer

Acrylic latex

Answer

Alkyd resin

Answer

Linseed oil

Answer

Polyurethane

Question 2

What is the primary advantage of using a zinc-rich primer on structural steel?

Accepted Answer

It offers cathodic (galvanic) protection by sacrificing zinc to protect the steel

Answer

It provides a bright white base coat

Answer

It eliminates the need for a topcoat

Answer

It dries faster than other primers

Question 3

Which coating type is most appropriate for a commercial kitchen floor that must withstand chemical spills and heavy traffic?

Accepted Answer

Epoxy floor coating

Answer

Latex floor paint

Answer

Oil-based enamel

Answer

Polyurethane wood finish

Question 4

What does 'VOC' stand for, and why is it regulated in California painting products?

Accepted Answer

Volatile Organic Compound - contributes to smog and air pollution

Answer

Visible Organic Content - regulates paint opacity

Answer

Variable Opacity Coating - controls sheen levels

Answer

Vinyl Oxide Catalyst - affects drying speed

Question 5

A C-33 contractor needs to paint exterior wood that is prone to tannin bleed. Which primer type is most effective at blocking tannin stains?

Accepted Answer

Pigmented shellac-based primer

Answer

PVA drywall primer

Answer

Latex bonding primer

Answer

Clear wood sealer

Question 6

What distinguishes an elastomeric coating from standard exterior paint?

Accepted Answer

It forms a thick, flexible membrane that bridges hairline cracks in the substrate

Answer

It contains metallic flakes for UV protection

Answer

It is only available in white

Answer

It requires no surface preparation