Central heating - Plumbing revision quiz 3

The statutory requierments of heating and hot water system commissioning are covered under the ?

• Construction regulations.

• Britsish standards.

• Water regulations.

• Building regulations.

Details of the heat output for a specific heat emitter can be found in?

• The British standards.

• Manufacturer's catalogues.

• The WRAS guide.

• The building regulations.

A disadvantage of using a one pipe heating system is that?

• It is not possible to use thermostatic radiator valves(TRV's)

• The central heating pump must always be on the return.

• Accurate balancing of the heat emitters is essential.

• The pipework to the radiator must be 22mm.

Filling a fully indirect open vented central heating system would be carried out through?

• The cold feed and exspansion cistern.

• A flexible connection from the incoming water mains.

• The cold fee from the cold water storage cistern.

• A connection between the mains and drain off tap.

The velocity for a circulation pump on a micro bore central heating must not exceed?

• 1 m/s

• 1.4m/s

• 1.5m/s

• 1.8m/s

A 3 port valve, programmer, room thermostat, cylinder thermostate, and TRV's would normally be used on?

• Pumped heating and gravity hot water for a two pipe system.

• Pumped heating and gravity hot water for a one pipe system.

• A fully pumped heating system(hot water priority) using a two position zone valve.

• A fully pumped central heating system using a 3 port mid position valve.

On a fully pumped system, an automatic air release valve is usally installed at the?

• Highest point on the pumped primary flow.

• Lowest point on the pumped primary return.

• Point where the open vent enters the F&E cistern.

• On the oposite end to the TRV on a radiator.

The vent pipe should be connected at point?

• A

• B

• C

• D

The main reason for specifying the component shown is to?

• Prevent revers circulation in the gravity primary flow pipe.

• Prevent the chance of water being pumped over the vent pipe.

• Permit the pump to be installed on the primary return.

• Allow the cold feed and vent pipe to be closely grouped.

A boiler that works on the principle of extracting heat from otherwise wasted flue gases is know as?

• Thermostatic.

• Combination.

• Condensing.

• Independent.