6035 | Central Heating LO1 Part 2

The open vent to the F&E cistern must rise how far above the water level?

• 150mm

• 200mm

• 450mm

• 1000mm

The circulator should be located a minimum of _____ below the F&E.

• 1 metre

• 2 metres

• 5 metres

• 7.5 metres

The British Standards governing the float operated valves is?

• BS EN 806

• BS 6700

• BS 8000

• BS 1212

How much does the system water expand by when heated?

• 4%

• 10%

• 1,600 times

• 0%

The purpose of an air separator is?

• To allow close coupled pipework when positioning the cold feed and vent pipe

• To compensate for pressure differences when systems are not fully pumped

• To allow additional connections when installing the S-plan system

• To allow pressure relief when the water has expanded

The maximum distance between the vent pipe and cold feed on a H-frame configuration is?

• 200mm

• 175mm

• 150mm

• 100mm

What does port A for the three port mid-position valve control?

• The flow for the boiler

• Central heating

• Hot water

A frost thermostat located on vulnerable pipework will override the programmer when it senses temperatures below _____.

• 0°C

• -3°C

• 5°C

• 10°C

Statement: The primary vent must terminate over the CWSC due to the chemical inhibitor present in the primaries.

• True

• False

Which radiator valve would be be considered the valve adjusted by the engineer?

• Wheelhead valve

• TRV

• Remote head

• Lockshield valve