Phase4,Mod15 re-establish

When relighting an existing appliance, the gas operative must check the operation of the:

• Flue.

• User controls.

• Flame supervision device.

• Thermostat.

When a gas installer re-establishes a gas supply to an appliance that is not commissioned he must:

• Allow the appliance to be used intermittently.

• Disconnect the appliance and issue warning notice and fix 'Do Not Use' Label or commission the appliance.

• Attach a warning label and issue a warning notice.

• Turn off the appliance at the user control

Which of the following activities must be carried out when purging a gas installation?

• Ensure good ventilation in the area where gas is being purged.

• Inform the customer that there may be a smell of gas .

• The furthest point from meter must be selected as the purge point.

• Not less than the calculated minimum purge volume shall be passed through the installation.

• all of the above

when a gas installer relights a users appliances he must:

• Service the appliance firstly.

• Check the appliance operating pressure.

• Check the appliance gas rate.

• Ensure the appliance is safe to use.

Which of the following meters have a purge volume of 0.01m³

• U6

• E6

• G4

• U16