GMJ 9189 Phase 2 Hot water MCQ

Identify this item.

• Fullway gate valve

• Drain off valve

• Part 2 float operated valve

• Stop valve

What chemical is used in the disinfecting process of a hot water system?

• Sodium peroxide

• Sodium hypochlorite

• Hydrochloric acid

• Caustic soda

Where on a domestic hot water cylinder should the cold feed be connected?

• Bottom

• Top

• Middle

• A third of the way up

Which is the best description of category 1 water?

• Water stored at 600C

• Wholesome water

• Water that offers a slight health risk

• Water that has a mild chemical added

What device is used to protect category 1 water from being contaminated by category 2 water?

• RPZ valve

• AUK1 air gap

• Single check valve

• AG air gap

What is this item called?

• Expansion vessel

• Tundish

• Strainer

• Pressure reducing valve

What does WRAS stand for?

• Water Revival Advanced Scheme

• Winter Regulations and Spring

• Water Regulations Advisory Scheme

• Water Ripples and Systems

What air gap is used at a kitchen sink to protect category 1 water?

• AUK1

• AUK2

• AUK3

• AG

What sort of tap would be best suited for an elderly person with arthritis?

• Bib tap

• Long neck pillar tap

• Non-rising tap

• Quarter turn tap

If there is a faulty fullway gate valve in the system, what should you do?

• Replace the back nut to release the fault

• Replace the body of the valve and leave the head gear

• Lubricate the body to release the fault

• Replace the whole valve