WorksheetsPlumbing Systems Decommissioning Quiz
Total questions: 13
Worksheet time: 7mins
What are the two types of decommissioning in plumbing systems?
Permanent and Temporary
Regular and Irregular
Fixed and Variable
Short-term and Long-term
When is a plumbing system permanently decommissioned?
When it is temporarily out of use
When it is no longer to be used
When it needs regular maintenance
When it is being upgraded
What is a common reason for temporary decommissioning of a plumbing system?
System is outdated
System is being permanently removed
System requires maintenance or repair
System is being replaced with a new one
What should be considered before the decommissioning of a gas-fired central heating system for a boiler replacement?
The cost of the new boiler
The isolation of services affecting other systems
The color of the boiler
The brand of the boiler
What is required for an operative to work on a gas fitting?
A plumbing license
Gas Safe registration
An electrical certificate
A safety helmet
What must be ensured when a gas pipe is disconnected?
It is left open
It is left gas tight
It is left with a warning sign
It is left with a temporary seal
What needs to be isolated when decommissioning a system to enable draining?
Hot feed
Cold feed
Return pipe
Overflow pipe
In an open-vented system, from where is the cold feed pipe isolated?
From the boiler
From the radiator
From the F&E cistern or the stop tap feeding the F&E cistern
From the main water supply
What is the purpose of a filling loop in a sealed system?
To permanently connect the system to the mains cold water
To disconnect the system from the mains cold water
To connect the system to the mains cold water only during filling
To increase the pressure in the system continuously
What procedure is recommended to follow when isolating electrical supplies?
Safe Isolation procedure
Emergency Shutdown procedure
Lockout-Tagout procedure
Electrical Safety procedure
Why should a vent on a radiator be opened at a high level?
To prevent an air lock
To increase water pressure
To reduce noise
To improve heating efficiency
Why is it important to replace Thermostatic radiator valve heads with manual caps?
To improve heating efficiency.
To prevent unwanted damage if temperatures drop and the valves open.
To enhance the aesthetic appearance.
To increase water flow.
What should be used when disconnecting any metallic pipework for alteration or repair?
Insulation tape
Temporary continuity bonds
Rubber gloves
Plastic clamps
