Electrical Heating

In underfloor heating what is a cold tail

• Part of the heating mat that dose not heat up and is used for connections

• The cables that run under the floor to heat the floor

• The supply cable that runs from the DB to the spur.

• The cable that runs between the spur to the thermostat.

State the two main types of heat transference used in space heating

• Convection and Conduction

• Radiation and Convection

• Conduction and Radiation

• Conduction and Transference

What is the term Economy 7 related to?

• This is the make of heaters installed

• This relates to the 7 hours of off peak electricity used to heat up storage heaters

• This relates to the 7 hours of on peak electricity used to heat up storage heaters

• This is known and the type of system relating to a back boiler within a domestic propery

The image shown is a device........

• Used for heating air in a duct system

• Fitted in a night storage heater to heat up the bricks

• Fitted in an immersion tank used to heat water

• Used to measure the temperature of water in an economy 7 system

What temperature should the thermostat of a immersion heater be set at?

• 55-60

• 60-65

• 50-55

• 65-70

The image shown is a

• Night storage heater

• Panel heater

• Portable electric heater

• Electric radiator

What size cable should be used to feed a shower above the rating of 8.5kW

• 10mm

• 4mm

• 6mm

• 2.5mm

What device in a shower prevents the user from receiving burns from over hot water

• Scald Guard Thermostat

• Scald Guard Resistor

• Anti Burn Protection Unit

• Non-Return Valve

What are the dangers of the hot water supply temperature set too low?

• Freeze burns

• Legionella

• The operating system seizing

• A build up of sludge in the system

What is the most common/comfortable setting for a room thermostat to be set at in a domestic property?

• 20° C

• 19°C

• 21°C

• 25°C