Central heating power point 3 2025

Which boiler type is known for combining heating and hot water in one unit?

• Combination boiler

• Electric boiler

• Back boiler

• Condensing boiler

What is the function of the locking out system in a boiler?

• It increases the water temperature.

• It shuts the boiler down if the flow is above 85ºC.

• It reduces the noise of the system.

• It enhances the efficiency of the boiler.

What is a major cause of corrosion in a central heating system?

• Lack of water.

• Excessive heat.

• Aeration.

• Poor insulation.

What does rust produce in a central heating system?

• Calcium deposits.

• Magnatite, which is black sludge.

• Lime scale.

• Copper oxide.

What extreme effect can aeration have on a central heating system?

• It can freeze the pipes.

• It can burn the circulator out.

• It can cause electrical failures.

• It can increase water pressure.

Which part of the Building Regulations covers heat producing appliances like boilers?

• Part A

• Part J

• Part C

• Part D

What is the legal requirement for an engineer installing any type or style of boiler?

• Certified Technician

• Licensed Contractor

• Competent Person

• Qualified Installer

Which online resource is recommended for gas safety registration?

• www.oftec.org

• www.hetas.co.uk

• www.niceic.com

• www.gassaferegister.co.uk

Where can you find online resources for oil-related boiler information?

• www.gassaferegister.co.uk

• www.oftec.org

• www.hetas.co.uk

• www.niceic.com

Which website provides information on solid fuel boilers?

• www.niceic.com

• www.gassaferegister.co.uk

• www.hetas.co.uk

• www.oftec.org