Download C-33 Painting and Decorating Final Test Questions with 100% Correct Answers | Latest and more Exams Construction in PDF only on Docsity!
C-33 Painting and Decorating Final Test
Questions with 100% Correct Answers |
Latest Version 2024 | Verified
Lacquer cannot be used over - ✔✔
- Water based paint
- Oil Paint
- Enamels How do you prepare new wood for painting if the has weep and pitch - ✔✔Sealing How much will #417 spray tip cover if you spray 12" from the face of the wall? - ✔✔8" fan width What is the square footage of a gable 12ft wide by 6 ft high - ✔✔Formula to find triangles A= (bxh) / 2. (12ft x 6ft ) /2 = 36 sqft What is the surface area of 6 columns, each of which measures 20ft high, and have a circumference of 3 ft - ✔✔One column 3ftx 20 ft =60 sqft For six columns : 60 sqft x 6 = 360 sqft With what kind of wood is it most important to use stain controller? - ✔✔Pine In general, painting over a wet surface will result in - ✔✔Wrinkling Best undercoat for new wood casting is - ✔✔Enamel
How do you remove wet enamel paint from an unfinished wood surface? - ✔✔A wipe with lacquer thinner Before sealing new plaster, when should you check for moisture? - ✔✔Just before sealing Improved the opacity in paint - ✔✔Pigment A 1/4" scale refers to" - ✔✔4'=1" What flame-spread classification is acceptable for a residential exit corridor? - ✔✔Class III Which component of paint affects the adhesion to the surface? - ✔✔Binder Why would you use acid over gypsum veneer plaster before painting - ✔✔Harden the surface What is the solvent used for acrylic paint - ✔✔Water What id the highest level of paint used for drywall finish - ✔✔Semi-gloss Which sandpaper is used when you begin sanding a door with old peeling paint? - ✔✔50 grit A safety rail of wood or other equally rigid material of adequate strength is required if the working platform of any scaffolding either swung or suspended from an overhead support is more than - ✔✔ 7 - 1/2 ft high Do not stand on the top ___ of a straight ladder without a safety belt - ✔✔3 rungs The polyvinyl sealer used on drywall is - ✔✔An acetate
The maximum height of a single horse scaffold is 16ft, and the maximum height of a tiered horse scaffold is - ✔✔ 10 The safety valve on a portable air compressor should be popped at least - ✔✔weekly When a ladder is not in use, it should be stored - ✔✔horizontally All guardrails must be able to withstand a load of____ per lineal foot - ✔✔13 lb It is safe to run a plank between a sawhorse and a step ladder for use as a scaffold, provided the plank extends at least _____ beyond either support - ✔✔12 in In tests to determine conformity to the Uniform Building Code's flame - spread regulation, surface materials must be shown to resits room temperatures of ____ for 25 min without becoming detached from the surface - ✔✔300 ' F Flame spread regulations do not apply to - ✔✔A term doors and window or their frames If sprinklers have been installed, the builder may - ✔✔Reduce the flame- spread rating one classification When using an airless spray gun ,always - ✔✔Wear a respirator When storing lacquer thinner, all of the following are required expect! - ✔✔Keep under lock and key When working on a float scaffold ,each workers must be provided a safety belt and lifeline at - ✔✔Always If worker is exposed to a fall of more than _____ a safety belt and lifeline must be provided - ✔✔15 ft What are electrical wires made from - ✔✔Copper and aluminum
New concrete should be etched with acid in order to prevent problems due to - ✔✔Alkali Litharge is used - ✔✔To make red lead With what do you prime ferrous metal? - ✔✔Red Lead What kind of thinner would you use with chlorinated rubber paint? - ✔✔Special thinner When does paint have a harder time for adhesion - ✔✔Paint has a harder time adhesion to summer - growth wood The basic ingredient of most rust- inhibiting primer is - ✔✔Zinc chromate If a room is to be carpeted, the last thing to do is - ✔✔Lay the carpet If a room is to be wallpapered, the first thing to do is - ✔✔Caulk When using an airless gun, you should overlap____ on each pass - ✔✔50% What is the general reason for priming metal - ✔✔Promote adhesion Painting masonry when still wet may cause - ✔✔Delaminating Red lead pigment are most often used in _____ primers - ✔✔Alkyd What causes a coat of paint to crack? - ✔✔Paint is applied too thick
The vertical length of the extended part of a trestle ladder must not be greater than ____ of the height of the base ladder - ✔✔1/ The maximum height of single horse scaffold is 16 ft, and the maximum height of tiered horse scaffold is
- ✔✔10 ' All guardrails must be able to withstand a load of ___ per linear foot - ✔✔20 lb It is safe to run a plank between a sawhorse and a stepladder for use as a scaffold, provided the plank extends at least ____ beyond either support - ✔✔12 in In tests to determine conformity to the Uniform Building Code's flame-spread regulation, surface materials must be shown to resist room temperature of ____ for 25 min without becoming detached from the surface - ✔✔300"F Flame-spread regulation do not apply to - ✔✔Trim , doors and windows or their frames Flame- spread classification of Class I,II and III are progressively - ✔✔More easily combustible If sprinkles have been installed, the builder may - ✔✔Reduce the flame-spread rating one classification A flammable gas or vapor creates a dangerous air contamination if the concentration is greater than - ✔✔20% The safe distance requirement from overhead electrical lines carrying between 600-50,000 V is ____ for people or for boom- type equipment in transit - ✔✔6ft What id the maximum height of a ladder-jack scaffold? - ✔✔16 '
If a spray- painting inside a water tank, wear - ✔✔A supplied - air respirator Rubber feet on extension ladder should be used - ✔✔Always If a worker is exposed to a fall more than _____ a safety belt and liftime must be provided - ✔✔15 ft New concrete should be etched with acid in order to prevent problems due to - ✔✔Alkai When painting a bathroom, what would you normally do last - ✔✔Paint it
- The general rule- of - thumb is that the painter is the last trade in. In this case, although the tile might be over-sprayed, more damage would probably be done to the paint when grouting the tile than vice- vera What would be done last remodeling a bathroom? - ✔✔Install pre- finished baseboards and trim
- lath and plaster
- finish flooring 3.cabinets 4.Electrical fixtures
- Paint
- Sand and Varnish floors What is the preferred primer for knots in wood - ✔✔Shellac If painting newly plastered walls and ceilings, which of the following is the best topcoat - ✔✔Alkyd flat If you want to cover latex with enamel, you should - ✔✔Use an oil-based primer
If you are priming a new plaster wall and inconsistencies appear on the surface, you should - ✔✔Apply another coat of the original sealer /primer If you have just primed a bathroom and shiny areas appear, what do you do if you want to apply an oil- base enamel topcoat - ✔✔Spot-prime or sand A foreman is inspecting a job a painter had done repairing a small hole in a wood door. The painter had spackled and finished with an oil-base coat. The foreman should say that the painter proceed - ✔✔Incorrectly: The painter should have spot-primed, spackled, and then finished To seal drywall, use - ✔✔PVA sealer What should not be use for prime new wood - ✔✔PVA What do you use to seal concrete masonry block - ✔✔Block-fill and seal, then two topcoats
- The number of topcoats should depend on the porosity of the material. Block filler raises the surface to reasonably smooth and level condition, but it still needs topcoat What is the first step in treating galvanized metal? - ✔✔Acid etching
- The question assumes that the galvanized metal is new and has not been naturally etched What will a water-base stain do to wood? - ✔✔Raise the grain *Extra sanding is therefore required. Non-grain (NGR) stain are available that have a solvent base and also dry quickly If a customer asks for an opaque look, what would you do - ✔✔Use a soild (Heavy) body stain
*Stains that yield an opaque look include raw umber , yellow ochre, and Venetain red To waterproof a poured (Formed) concrete or stucco surface apply - ✔✔Block fillers and finish coat(s) What may happen when you paint wet concrete - ✔✔Peeling In basement with new cement-base walls, what would you do before applying Portland- cement-base paint? - ✔✔Wet *A thorough prewetting is required as well as frequent misting between coats after setting- up What does the abbrevation "CFM" mean on a compressor - ✔✔Cubic feet per minute If you want briefly to soak a paint brush with dried latex paint, what would you soak it in? - ✔✔Mineral spirts or turpentine
- Is latex paint has dried in the brush, first rinse and comb the brush to remove as much of the dried paint as possible. If dried paint remains, briefly soak the brush in mineral spirits or lacquer thinner, followed by warm soapy water and a clear water rinse. Remember to suspend the brush in solvent instead of standing it on its bristles. Which is a conventional spray system - ✔✔One with separate air and fluids lines Which is an airless spray system - ✔✔One with a fluid line only When using an airless gun hold it - ✔✔Farther away from the surface than a conventional gun What is not part of a hand-held spray gun - ✔✔Vertical valve
A contractor applied a cloth wallcovering 1/8 " thick for an application rated Class III Flame Spread. the material - ✔✔Must be applied directly to noncombustible backing When can you use lean- to jack scaffolds to support scaffold platforms - ✔✔Never In general what would happen if you apply enamel over a wet surface - ✔✔The coating will peel Wood is the most appropriate surface on which to apply an oil-based primer followed by a latex topcoat
- ✔✔(Wood) If you were to paint a wet stucco wall, what would probably happen? - ✔✔Spotting
- The moisture trapped in the stucco would activate the alkali in the stucco and results in "hot spots " that burn the binder of the coating How do you remove wet enamel paint from a wood surface - ✔✔Wipe with lacquer thinner If you were contemplating coating a door with polyamide-cured epoxy paint, what type is the best choice - ✔✔Throw away What tool would you use to paint plaster - ✔✔Spray gun *the roughness of the surface is apparently not given in the State's question. If you are preparing an old masonry wall for painting, you should - ✔✔Remove dust and dirt with a broom and wire brush Before painting newly plastered walls, you may have to treat them - ✔✔Vinegar
- Vinegar or other mild acids harden soft plaster surface
Before applying enamel to a r=textured plaster wall - ✔✔Apply sizing *Sandpaper should not be used on plaster surfaces Oil-based enamel is the best for priming raw wood - ✔✔Oil-based enamel Best to straightedge is - ✔✔Guiding the cutting tool Clean wallpaper brushes and tools with - ✔✔Warm soapy water Where do you start when hanging wallpaper - ✔✔At the edge of a door or window If you have used a nylon brush to apply water-based latex and it dries hard, what would you use to clean the brush - ✔✔Mineral spirts or turpentine followed by water
- The solvent in lacquer thinner dissolve nylon What is the proper way to prepare a paint bruh for long term storage after use - ✔✔Wrap in foil or heavy paper *The foil or heavy paper prevent the bristles from curing or spreading during long-term storage When painting a large area with enamel paint what would you use to create a smooth finish - ✔✔Short nap roller
