#1. Spray foam and fiberglass can both ______ a building.
Insulation slows or eliminates air flow between a building’s exterior and interior.This limits temperature fluctuations inside the building and can make it much more comfortable to be inside.
#2. MDF is an engineered wood product, what does the acronym MDF stand for?
Medium-density fibreboard (MDF) is an engineered wood product made by breaking down hardwood or softwood residuals into wood fibres, often in a defibrator, combining it with wax and a resin binder, and forming it into panels by applying high temperature and pressure.
#3. What does this pictured tool do?
The notches down the jaws of a wire stripper are set for different wire gauges. Note that the larger the number, the smaller the wire.
#4. What might you use to hold together two pieces of wood if you're planning to glue them?
C Clamp are incredibly versatile and very widely used. When most people think of a clamp, this is what they picture in their minds. It is used to either clamp two pieces of a project together or to hold a workpiece to the table.
#5. Paint primer is used to:
Primer is a paint product that allows finishing paint to adhere much better than if it were used alone. It is designed to adhere to surfaces and to form a binding layer that is better prepared to receive the paint.
#6. How do you know whether a finishing product (paint, varnish, etc.) is oil- or water-based?
Oil based stains are somewhat more water resistant than the water based finishes. Due to this, by sprinkling a little water onto the stained area you can tell if the stain is water or oil based. Simply wait for a minute and see if the water beads up. If it does, then you have an oil based stain.
#7. This style of drill bit is used for
Spear Point (Glass and Tile) Bits. They are tungsten-tipped drill bits that specialize in drilling through glass and ceramic tiles. Spear points will drill through porcelain, but toughened glass is beyond their capabilities.
#8. Which of these three hearing protectors is most effective?
All offer adequate hearing protection; the key is selecting a protector that’s comfortable and convenient so you’ll actually use it. Disposable foam earplugs that you twist, then let expand into your ear, are the very best because they block the ear canal completely.
#9. Can you identify this screwdriver :
It’s a common misconception that the Phillips screwdriver was named after its inventor. But the truth is that the screwdriver is really named after Henry F. Phillips, the owner of the company which purchased the design from its inventor John P. Thompson. John P. Thompson invented a crosshead screw design in 1932. He patented the design the following year and set about to different manufacturers to have his invention produced on a mass scale. The screw head was designed to overcome the difficulties of slippage and wear that were common with the straight designs that accommodated the flat head screwdriver.
#10. What colour is the live wire on a plug?
In a plug, the live wire (brown) and the neutral wire (blue) are the two wires that form the complete circuit with a household appliance. The earth wire (green and yellow) does not normally form part of the circuit and is included as a safety wire. It is connected to ‘earth’, which is usually a large metal spike buried under a house.
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