Central Heating L2 6035 Plumbing

Front

What is Delta T?

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The difference between the temperature of the radiator and the room.

Front

Which radiator is a double panel double convector?

Back

Front

Where is the neutral point?

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Where the cold feed connects to the circuit.

Front

The main problem with the one pipe system is that

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The earlier radiators pass cooler water back into the circuit

Front

The cold water supply to a fully pumped open vented central heating system should be isolated at the

Back

service valve to the float operated valve to the F & E cistern.

Front

The cold water supply to a fully pumped open vented central heating system should be isolated at the

Back

service valve to the float operated valve to the F & E cistern.

Front

When setting the water level in a feed and expansion cistern, the allowance that should be made for the expansion of water in the heating system is

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4 %

Front

If TRVs or zone valves on a system close, the purpose of the automatic by-pass valve is to make sure that

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water can flow through the boiler

Front

The recommended test pressure for a hydraulic test on a central heating system is

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1.5 times normal working pressure

Front

Before isolating a heating system for the day, in cold weather, in a flat owned by an elderly person, a plumber should

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ensure that an alternative means of heating is available.