Heating Systems phase 1.1/1

What is the most popular form of heating system in the UK traditionally based on?

• Electricity

• Gas

• The circulation of heated water

• Solar power

How is heat transferred into the building in the case of underfloor heating?

• By natural ventilation

• By conduction, convection, and radiation

• By electrical resistance

• By forced air systems

Which of the following is NOT mentioned as a method for heating water in the text?

• Gas

• Solar power

• Biomass boilers

• Air source heat pumps

What type of sources are air source and ground source heat pumps considered as per the text?

• Non-renewable sources

• Environmentally friendly sources

• Traditional sources

• Inefficient sources

What do modern wet systems use to improve the efficiency of energy and heat generation?

• Only old theory and design

• Only modern installation techniques

• Modern installation techniques, materials, and controls

• No theory or design at all

What is the purpose of an open vent in a heating system?

• To increase the temperature above 100°C

• To prevent the heating system from exceeding 100°C and assist with the expansion of water

• To close the heating system completely

• To operate the heating system without water

Why does a low pressure heating system operate at temperatures below 100°C?

• Because it does not use water

• Because it operates without an open vent pipe

• Because it includes an open vent pipe

• Because it is designed to heat water above 100°C

What is a sealed heating system?

• A heating system that contains a vent pipe and an expansion tank.

• A heating system that does not contain a vent pipe or feed and expansion system, and is filled with water from the mains.

• A heating system that is permanently connected to the water main without any temporary devices.

• A heating system that uses natural convection to circulate water.

What principle does gravity heating use to circulate water?

• Electromagnetic induction

• Conduction and the change in water density due to temperature

• Centrifugal force

• Mechanical pumping

What is a Microbore system in heating?

• A system that uses large pipe work to the radiators.

• A system of heating that uses very small pipe work to the radiators, typically sizes of 8mm and 10mm pipework.

• A type of heating system that does not use pipework.

• A heating system that uses only 10mm pipework.