ACS Training and Gas Safety Quiz

What is the purpose of the CCN1 gas safety assessment?

• To train individuals in HVAC systems

• To assess electrical safety in homes

• To provide a certification for plumbing

• To test the gas safety competence in core domestic gas work

How many days is the assessment process scheduled for?

• 1 day

• 2 days

• 3 days

• 4 days

Which of the following is NOT included in the 15 Core Competences?

• Flue Testing

• Gas Safety Legislation

• Characteristics of Combustion

• Electrical Wiring Standards

With a U6 meter what is the maximum permissible pressure drop during a 2-minute test period with appliances connected?

• 0.5 mbar

• 4.0 mbar

• 3.0 mbar

• 2.0 mbar

What is the next course of action once let-by is confirmed during a tightness test?

• Continue with the test

• Report to the National Gas Emergency Service

• Ignore and proceed

• Increase the pressure

What is the maximum permissible designed pressure drop on a new Installation.

• 30 mbar

• 1 mbar

• 2.4 mbar

• 21 mbar

What is the pressure absorption (loss) across a primary meter at maximum flow rate?

• 4 mbar

• 2 mbar

• 5 mbar

• 3 mbar

What is the correct procedure for purging installations with an IV less than 0.02m3?

• Turn off the gas supply

• Open doors and windows and extinguish ignition sources

• Disconnect all appliances

• Increase the gas pressure

What is the required working pressure at the meter after 1 minute?

• 20 mbar

• 21 mbar

• 18.5 mbar

• 23 mbar