Knots in timber if left untreated could result in
a cissing of the paint film
b chalking of the paint film
c discolouration of the paint film
d flaking of the paint film.
The term porosity in relation to timber refers to its
a cost
b lifespan
c hardness
d absorbency.
Which of the following is a suitable primer for both resinous timbers and bitumen-coated surfaces?
a Acrylic primer.
b Aluminium primer.
c Zinc-rich primer.
d Etch primer.
Which abrasive is used to abrade new wood before painting?
a grade 240 garnet paper
b coarse emery cloth
c grade 240 aluminium oxide
d medium glasspaper.
Which of the following is a solvent-borne primer suitable for timber?
a Zinc chromate primer.
b Alkali-resisting primer.
d Lead-free primer.
What is the iron content of non-ferrous metal?
a 0% iron content.
b 10% iron content.
c 40% iron content.
d 60% iron content.
Which of the following is created at the production stage of steel beams and girders?
a Flaking.
b Rust.
c Pitting.
d Millscale.
A primer appropriate for non-ferrous metal is
a alkali-resisting
b red oxide
c acrylic primer
d etch primer.
Open joints are a defect likely to be found in
a blockwork
b brickwork
c gypsum plaster
d plasterboard.
Chemically inactive materials are said to be
a alkaline
b acidic
c inert
d adhesive.
Dry lining is suitable for use as
a a load-bearing wall
b a load-bearing beam
c an external surface finish
d an internal surface finish.
Failure to remove old peeling coatings prior to repainting could result in
a bleaching
b chalking
c flaking
d wrinkling.
The correct method of removing paint coatings from a window frame is by
a steam stripping
b electric hot-air
c LPG burning off
d liquid paint-removal.
A hazard which could arise from the use of a steam stripper is
a scalding
b asphyxia
c radiation
d deafness.
When removing old paper, it must be allowed to soak so that it
a can be removed in several stages
b can be removed in one piece
c hardens and can be easily removed
d softens and can be easily removed.
The correct method of removing paper contaminated with mould is by
a abrading and washing
b washing and scratching
c washing and scraping
d burning off and washing.
At the end of the working day where should Personal Protective Equipment (PPE) be stored?
a In the workshop, clearly marked, with unrestricted access for public and employees.
b In the workshop, clearly marked, accessed only by a first aider.
c In a designated area, clearly marked, with restricted access for employees only.
d In a designated area, clearly marked, with unrestricted access for public and employees.
Multi-coloured spots or patches on defective surfaces are known as
a grease contamination
b efflorescence
c moss and lichen
d mould and fungi.
Crystaline salts on an alkaline surface is known as
a cissing
c fungi
d saponification.
Removing dirt and dust with a tack-rag prior to painting will avoid
a saponification
b discolouration
c bittiness
d effloescence.
The test to determine if a surface coating is either acrylic or solvent-borne, is known as a
a mastic test
b moisture test
c litmus test
d meths test.
Bleeding on a painted timber surface can be caused by
a painting knotty or resinous woods
b paint being deficient in binder
c painting over greasy surfaces
d painting over powdery surfaces.
Flaking on a non-ferrous metal surface can be caused by the use of the incorrect
a roller
b primer
c filler
d mordant.
Plaster cracks caused by material drying out after completion are known as
a settlement
b expansion
c shrinkage
d shearing.
Which of the following is the correct sequence for repairing cracks in plaster? 1 Undercutting. 2 Dry Abrading. 3 Raking out. 4 Proud filling. 5 Wetting in.
a 1, 3, 5, 4, 2
b 5, 3, 1, 4, 2
c 3, 1, 5, 4, 2
d 3, 1, 5, 2, 4
One possible effect of heat on plaster is the formation of
a blisters on the surface
b fungi on the surface
c deep cracks
d hairline cracks.
Which of the following would be most suitable for making good screw holes in oak skirting?
a Plastic wood.
b Cement-based filler.
c Caulk.
d Powdered filler
The correct abrasive to use when making good open grained timber is
a emery cloth
b aluminium oxide
c silicone carbide
d wire wool.
Which tool is used to apply stoppers to small holes and cracks?
a Palette knife.
b Putty knife.
c Hacking knife.
d Filling knife.
Which of the following is applied using a caulking gun?
a Flexible filler.
b Powdered filler.
c Interior filler.
d Ready-mixed filler.