WorksheetsGMJ 9189 Phase 2 Hot water MCQ
Total questions: 20
Worksheet time: 10mins
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
Which Building Regulation states that one of these valves must be fitted before the outlet on any new bath fitted?
Part H
Part L
Part G
Part P
Which British Standard is used alongside BSEN806 and covers the design, installation, testing and maintenance of servicing supplies for domestic use?
BS8558
BS8000
BS12056
BS1212
Which one of the following systems can this appliance be connected to?
Low pressure system fed from a cold-water storage cistern
Thermal store heater
Single point water heater
Unvented hot water system
If a hot water appliance had a fault, where would you look for guidance?
BSEN806
The Water Supply (Water Fittings) Regulations
The manufacturer's instructions
Building Regulations Part L
What must happen to any open-ended pipework when a system is being decommissioned?
It should be labelled 'not in use'
It should be capped off
It should be re-connected to the appliance
The customer should be advised not to use it
What does this diagram show?
Electric shower
Double impeller shower
Gravity shower
Single impeller shower
What type of hot water system is shown in this diagram?
Low pressure gravity system
Thermal store hot water system
Unvented hot water system
Primatic hot water system
Which of the following is not a statutory source of information?
Building Regulations Part L
The Water Supply (Water Fittings) Regulations
BSEN806
Approved Document Part G
What backflow prevention device is being used to protect the wholesome water against contamination in this shower valve?
Double check valve
AUK2 air gap
Single check valve
RPZ valve
What is meant by the term ‘heat recovery’?
The time taken for the boiler to get to temperature
The time taken to heat up a full cylinder of hot water
The time take for the primaries to start heating the cylinder
The time taken for the cylinder thermostat to activate the boiler
