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Worksheetsheatingtwo
Total questions: 19
Worksheet time: 10mins
1. The Domestic Heating Compliance Guide supports which document?
British Standard 8000.
The Water Supply (Water Fittings) Regulations.
British Standard 5449.
Building Regulations Approved Document L1.
Which legislation describes the requirement to have separately zoned space heating areas in dwellings?
Building Regulations Part L.
Gas safe installation and use regulations.
BS EN806.
Water Regulations Guide.
Which one of the following Building Regulations documents give guidance on the type of central heating systems to be installed in existing domestic dwellings?
Part L1A.
Part L2A.
Part L1B.
Part L2B.
Separate space heating zones are required in dwellings where the floor area is greater than:
150m².
180m².
200m².
500m².
Which one of the following documents gives guidance on heating system design?
CHeSS 2008.
CHeTT 2008.
BS 6400.
CHeSH 2005.
Which of the following types of heating system is shown in the diagram?
C plan.
Y plan.
S plan.
W plan.
What is the function of the central heating component shown in the image?
Mid-position valve.
Automatic air vent.
Air separator.
Manual bypass valve.
In the diagram shown, the cylinder flow will be connected to which of the following?
Port A.
Port B.
Port AB.
Port A and Port B.
Which one of the following types of valve would you commonly find in a Y plan system with no bypass?
Three-port diverter valve.
Zone valve.
Two two-port valves.
Three-port mid-position valve.
An arrangement of system controls which prevents a boiler from firing when there is no demand for either heating or hot water is called:
Control interlock.
Boiler interlock.
System interlock.
Heating interlock.
The normal position for a cylinder thermostat that is strapped to a cylinder is approximately:
At the top of the cylinder.
A third of the way down the cylinder from the top.
Halfway down the cylinder.
A third of the way up from the bottom of the cylinder.
Which is the best location for the primary circulating pump in a low loss header installation?
Heating flow.
Heating return.
Hot water dead leg.
Hot water draw-off.
How should a fused spur be properly isolated before doing any electrical work on the circuit?
Isolate by removing the fuse.
Isolate at the consumer unit by switching off the feed.
Isolate by removing the cable to the appliance.
Isolate at the consumer unit with an approved locking device.
In a sealed central heating system, where should the expansion vessel be positioned?
Primary flow.
Secondary flow.
Primary return.
As per manufactures instructions.
Which of the following boiler types works on the principle of extracting heat from flue gases that would otherwise be wasted?
Combination.
Independent.
Condensing.
Thermostatic.
A room sealed appliance can best be described as:
Completely sealed against the entry of air.
Where its combustion system is sealed from the room in which it is located.
Where combustion air is drawn from another room only.
Where the air supply is sealed within the room adjacent to the outlet.
Which of the following types of radiator would it be advisable to install when the elderly, infirm or children are likely to come in contact with them?
Tubular type radiator.
Double-convector radiator.
Low-surface temperature radiator.
Column type radiator.
Which of the following is an advantage of underfloor heating?
Easier to install in existing properties.
Less pipework required.
Slower heat-up period.
Even heat distribution.
Which one of the following will help to prevent corrosion?
Adding inhibitor to the system.
Adding neutraliser to the system.
Carrying out a hot flush.
Carrying out a power flush.
