CCN1 Gas Appliance Installation and Commissioning 3

Question 1

What classification is given to a gas appliance that presents an immediate risk to life or property?

Accepted Answer

Immediately Dangerous (ID)

Answer

The 'Immediately Dangerous' (ID) classification is applied when an appliance poses an immediate threat to life or property; it must be disconnected from the gas supply immediately with the customer's agreement.

Question 2

When a gas appliance is classified as 'At Risk', what must the engineer provide before leaving the premises?

Accepted Answer

A written warning notice with the customer's acknowledgement

Answer

When an appliance is classified 'At Risk', the engineer must issue a written warning notice explaining the risk and obtain the customer's written acknowledgement that they have been informed of the danger.

Question 3

Which Building Regulation Part specifically covers the installation of combustion appliances, including gas boilers, in England and Wales?

Accepted Answer

Part J — Combustion appliances and fuel storage systems

Answer

Building Regulations Part J covers heat-producing appliances and fuel storage, specifying requirements for safe location, adequate air supply, and satisfactory flue systems for gas boilers and other combustion appliances.

Question 4

What is the Landlord's Gas Safety Record (CP12) and when is it required?

Accepted Answer

An annual certificate confirming gas safety checks have been completed in rented properties

Answer

The CP12 (Landlord's Gas Safety Record) is a legal requirement under the Gas Safety (Installation and Use) Regulations 1998 for landlords, confirming that all gas appliances in rented properties have been inspected annually by a Gas Safe registered engineer.

Question 5

What classification applies to a gas appliance that was correctly installed to the standards of the time but no longer meets current safety requirements?

Accepted Answer

Not to Current Standards (NTCS)

Answer

'Not to Current Standards' (NTCS) applies when an appliance was correctly installed at the time but does not meet current standards; this is the least severe warning classification as the risk is not immediate.

ACS CCN1 Practice Test

ACS CCN1 Practice Test

CCN1 Gas Appliance Installation and Commissioning 3