What is the minimum diameter of the hot water draw off pipe from a hot water cylinder?

• A) 15mm

• B) 22mm

• C) 35mm

• D) 28mm

What type of hot water cylinder is shown?

• A) Combination

• B) Unvented

• C) Indirect

• D) Direct

What type of cylinder is shown?

• A) Combination

• B) Unvented

• C) Indirect

• D) Direct

What type of cylinder is shown?

• A) Combination

• B) Unvented

• C) Indirect

• D) Direct

How should hot and cold pipework be installed to prevent undue warming of the cold water pipework?

• Hot pipes above cold pipes

• It makes no difference

• Cold pipes above hot pipes

• Hot and cold pipes installed in the same insulation

What action can be taken to prevent noise from the expansion and contraction of copper pipework laid in traditional timber joists?

• Wrap felt lagging around pipes where they lie in the joist

• Wrap felt lagging around pipes between the joist

• Install a 200mm length of plastic pipe 600mm along the length of copper pipe

• Install plastic pipe every 600mm along the length of copper pipe

According to BS6700, how many minutes should a hot water system comprising of copper pipework be tested for?

• 90

• 60

• 30

• 120

What is the advantage of using a pressurised central heating system?

• The cold water is colder

• All radiators heat up evenly

• All downstairs radiators heat up more than the upstairs radiators

• The hot water is hotter

The name of a central heating system which incorporates a three port motorised valve is?

• S plan

• Y plan

• C plan

• W plan

Which is the more capable drill when drilling a hole in a concrete lintel?

• A cordless non hammer rotary drill

• A corded hammer rotary drill

• A cordless hammer action rotary drill

• A slotted drive system (SDS) drill