A gasinjector is a synonym for a venturi

• Yes

• No

• Only for modern burners

• Only if the overbresuure is higher than 30 mbar

The venturi is located in the inlet channel

• No

• Yes

• It can also be in the outletchannel

• It is located in the mixing chamber

The purpose of a venturi is

• Decreasing the airspeed

• Increasing the airspeed

• Mixing air and gas

• Increase the gas pressure

The airintake for a burner of the open type is coming from

• Sucked in through a tube

• Sucked in via a grid

• Directly from the room where the burner is located

• blown in via a compressor

The smoke extraction is done via a

• double-walled pipe

• a single-walled pipe

• fan

• it is not necessary