PPT 11 - Decommission systems and components

What is decommissioning in the context of plumbing?

• The process of installing a new system

• The isolation of a system for repair, extension, renewal, or removal

• The maintenance of a system to ensure efficiency

• The upgrading of a system to a newer model

What happens during temporary decommissioning?

• The system is permanently removed

• The system is isolated and then put back into operation

• The system is upgraded to a new version

• The system is left unused indefinitely

What is a characteristic of permanent decommissioning?

• The system is temporarily isolated

• The system is upgraded and reused

• The system is isolated, drained, and pipework is capped

• The system is left operational but unused

What is important to ensure when decommissioning a building?

• The occupier is unaware of your actions.

• The occupier is aware of your actions.

• The building is left unattended.

• The work is done during peak hours.

What should be done to minimize disruption to the user during decommissioning?

• Isolate the entire system.

• Isolate only part of the system.

• Ignore user needs.

• Work without any isolation.

What action should be taken regarding existing pipework during decommissioning?

• Leave it as it is.

• Cap off existing pipework.

• Remove all pipework.

• Ignore the pipework.

What should be placed against stop valves and service valves during decommissioning?

• Warning signs.

• Decorative signs.

• No signs are needed.

• Signs indicating permanent closure.

What is a passive dead leg in plumbing?

• A section of pipework where water cannot be drawn off or flow

• A section of pipework where cold water must be drawn off first

• A section of pipework that is always in use

• A section of pipework that is used for gas flow

What is an active dead leg in plumbing?

• A section of pipework where water cannot be drawn off or flow

• A section of pipework where cold water must be drawn off before hot water

• A section of pipework that is always in use

• A section of pipework that is used for gas flow

When draining cold water systems, from where should you always start draining?

• From the highest point of the system

• From the lowest point of the system

• From the middle of the system

• From any random point