PHASE 2 END TEST NO 1

What is the maximum distance between the open vent and cold feed on an H-frame?

• 100m

• 150m

• 100mm

• 150mm

What is the most suitable position for the installation of an expansion vessel within a central heating system?

• On the flow pipe near to the boiler

• On the cold feed pipe to the system

• On the return pipe near to the boiler

• On the open vent pipe

An S-plan system has what type of valve controlling the hot water and central heating circuits?

• 2 x 3 port valves

•  1 x 2 port valves.

• 1 x 3 port valves.

•  2 x 2 port valves.

When the zone valve closes, the boiler switches off and the circulator stops running, but the programmer is still on; this is known as…

• This is known as thermos interlock

• This is known as system interlock

• This is known as boiler interlock

• This is known as boiler unlock

An S-plan system has what type of valve controlling the hot water and central heating circuits?

• 1 x 3 port valves

• 2 x 2 port valves

• 2 x 3 port valves

• 1 x 2 port valves

Which British Standard offers advice on the filling and testing of central heating systems?

• BSEN 12556

• BSEN 14336

• BSEN 6700

• BSEN 806

which criteria you think may affect the design of a central heating system?

• customer’s needs

  building layout and features

• environmental impact

  legislation and guidance

• suitability of system

  energy efficiency

• occupancy type

  cost

  storage requirements 

The term K-value means?

• Each element has its own conductivity rate in Watts per cm Kelvin (w/mK), known as a K-value

• Each element has its own conductivity rate in Watts per mm Kelvin (w/mK), known as a K-value

• Each element has the same conductivity rate in Watts per metre Kelvin (w/mK), known as a K-value

• Each element has its own conductivity rate in Watts per metre Kelvin (w/mK), known as a K-value

The Domestic Heating Compliance Guide supports which document?

• British Standard 5449

• British Standard 8000

• The Water Supply (Water Fittings) Regulations

• Building Regulations Approved Document L1

Separate space heating zones are required in dwellings where the floor area is greater than?

• 150m3

• 15m2

• 150mm2

• 150m2