Painting and Decorating Quiz

How would a check be made on a known metal surface to determine if it is ferrous?

• Tap the surface firmly

• Strip an area

• Use a magnet

• Pass an electric current through it

Answer explanation

Using a magnet is the correct method to check if a known metal surface is ferrous as ferrous metals are magnetic.

Prior to wood priming application, Knotting is used by the decorator to:

• emphasise the grain

• prevent the resin discolouring the new paint covering

• stop knots from shrinking

• fill cavities in a knot

Answer explanation

Knotting is used to prevent the resin from discolouring the new paint covering, ensuring a clean finish.

Old paint surfaces containing lead should be:

• rubbed down wet

• rubbed down dry

• rubbed down using a pneumatic sander

• not rubbed down at all

Answer explanation

Old paint surfaces containing lead should be rubbed down wet to minimize the risk of lead dust exposure.

New metals are coated with a non-drying oil to:

• make them shine

• prevent them from sticking together

• prevent oxidation in storage

• make them easier to handle

Answer explanation

The non-drying oil is used to prevent oxidation in storage, not for making the metals shine, preventing sticking together, or making them easier to handle.

After being raked out, and before filling, cracks in plaster should be:

• coated with water-borne primer

• filled with putty

• 'wetted in' using clean water

• sealed with shellac

Answer explanation

Cracks in plaster should be 'wetted in' using clean water before filling to ensure proper adhesion and prevent further damage.

'Wet abrading' is a preparation process best done using:

• silicon carbide

• garnet

• aluminium oxide

• crushed glass

Answer explanation

The preparation process of 'wet abrading' is best done using silicon carbide, making it the correct choice out of the options provided.

ARP should be used to prime:

• aluminium

• new timber

• new plaster

• galvanised steel

Answer explanation

ARP should be used to prime new plaster to ensure proper adhesion and a smooth finish for painting.

The essential reason for soaking wallpaper thoroughly prior to removal is to:

• wash the paper

• soften the paper fibres

• soften the paste

• soften the applied paint

Answer explanation

Soaking wallpaper thoroughly prior to removal is done to soften the paste, making it easier to peel off the wallpaper without damaging the wall surface.

Checks should be made on old coatings for lead content before removal because lead is:

• very hard

• unaffected by heat

• unaffected by solvents

• highly toxic

Answer explanation

Lead is highly toxic, making it crucial to check old coatings for lead content before removal to prevent exposure and poisoning.

Washing hands with solvents may cause:

• dermatitis

• wrinkling of skin

• bleaching of skin

• peeling of skin

Answer explanation

Washing hands with solvents may cause dermatitis, which is inflammation of the skin. The other options like wrinkling, bleaching, and peeling of skin are not typically associated with washing hands with solvents.