Gas controls

According to Regulation 26 (9), what must be examined after working on a gas appliance?

• The effectiveness of any flue

• The supply of combustion air

• Its operating pressure or heat input

• Its operation to ensure safe functioning

What is an example of a simple gas appliance control?

• A single gas tap on a boiling ring

• A digital thermostat

• A remote control

• A smartphone app

What is the expected outcome of operating various controls?

• To break the controls.

• To identify and rectify defects.

• To ignore the controls.

• To sell the controls.

What is the role of the spindle in the safety shut-off valve system?

• To ignite the burners

• To operate the shut-off valve

• To increase gas flow

• To adjust the temperature

What is the purpose of the spring behind the niting plate?

• To release gas

• To put pressure on the tapered brass plug

• To control the flame size

• To secure the gas tap

What happens if there is no current from the thermocouple?

• The valve remains open

• The valve closes

• The gas flow increases

• The flame intensifies

What does the Flame Failure Device (FFD) do when the electromagnetic field fails?

• Opens the gas supply

• Shuts off the gas supply

• Increases the gas pressure

• Maintains the gas flow

What should you hear when the FFD returns to the 'off' position?

• A beep

• A click

• A buzz

• A whistle

Which appliance has the longest maximum shut down time?

• Warm air units

• Radiant Gas Fires

• Cooker ovens

• Storage water heaters

What is interrupted in the thermocouple of the device?

• Outer cable

• Inner cable

• Magnetic valve

• Overheat thermostat