Grade 11 Holiday Quiz

A person who installs pipes, fixtures and other apparatus to convey and supply water in buildings and to dispose and discharge waste water.

• Carpenter

• Mason

• Plumber

• Plumbing

Manufactured boards are made by cutting up solid timber wood and sticking it back together again in different ways. Which board is made by sticking together very thin layers of hardwood?

• MDF
• plywood
• chipboard
• hardboard

What is this material?

• Blockboard

• Plywood

• M.D.F.

Which of these is a property of metals?

• It's malleable
• It can't conduct electricity
• They are used in food
• It's very brittle

The deterioration of a metal due to a chemical reaction in the environment is called this

• Reactivity
• Corrosion
• Luster
• Malleable

In the blast furnace, Hot air is added to the...

• Top of the furnace
• Middle of the furnace
• Bottom of the furnace

A form of steel containing chromium, resistant to tarnishing and rust.

• Stainless steel
• Abrasion resistant steel
• Carbon steel
• Metal

Why are tree logs converted?

• To allow drying to occur quicker

• To allow them be used as timber

• To assess the quality of the wood

• All of the above

What type of conversion method is shown above?

• Through and through

• Quarter sawn

• Tangential sawn

• Rough sawn

Above is a common natural defect that can happen when logs are converted. What is its correct name?

• Bowing

• Twisting

• Cupping

• Shrinkage