GMJ 7202 Jack, George & Alfies quiz for plumbing science

Steel is a non-ferrous metal?

• True

• False

How much does frozen water expand by?

• 5%

• 2%

• 10%

• 4%

Which of the following metals are non-ferrous?

• Steel

• copper

• iron

• stainless steel

Which is the most dense - 1 litre of water at 4 degrees Celsius or 1 litre of water at 10 degrees Celsius

• 1 litre of water at 4 degrees Celsius

• 1 litre of water at 10 degrees Celsius

Where is PVCu commonly used?

• boilers

• mains water pipework

• central heating

• above ground drainage

The expansion of water becomes a very real danger as it expands 1600% at water temperatures?

• 100 degrees celsius

• 100 degrees kelvin

• 373 degrees celsius

• 373 degrees kelvin

What metals combine to make Brass

• copper and Zinc

• Copper & tin

• Iron & aluminium

• Titanium and copper

What year were the Water Regulations introduced in England

• 1992

• 1999

• 2001

• 2023

Limescale can create problems in hot water cylinders.

• True

• False

How is volume typically measured by plumbers?

• gallons

• litres

• cubic feet

• cm²