IGT PO4.1

What is the purpose of the combustion chamber?

• To filter air

• To cool the metal parts

• To burn the mixture of air and fuel

• To store fuel

Which component is responsible for controlling the amount of fuel in the combustion chamber?

• Combustion Liner

• Transition Piece

• Fuel Nozzle

• Spark Plugs

What is the function of the ultraviolet flame detectors?

• To ignite the fuel

• To cool the combustion chamber

• To mix fuel and air

• To indicate the presence or absence of flame

What is the main purpose of the combustion liner?

• To control fuel flow

• To link the hot gas path

• To contain and direct the combustion process

• To detect flame presence

How is the inspection of the combustion liner typically carried out?

• Using a Borescope

• By removing the entire chamber

• Using a thermal camera

• By visual inspection only

What is the role of the transition piece in the combustion section?

• To ignite the fuel

• To filter the air

• To link the hot gas path between combustion chambers and turbine

• To cool the combustion gases

What percentage of air participates in the combustion process?

• 75% - 80%

• 10% - 15%

• 20% - 25%

• 50% - 60%

What is the purpose of the spark plugs in the combustion chamber?

• To provide a place for an electric spark

• To mix fuel and air

• To detect flame presence

• To cool the combustion gases

What happens if the flame is not detected by the flame sensor?

• The turbine will continue to operate

• It will inhibit further progress of the turbine start-up sequence

• The combustion chamber will cool down

• The fuel supply will be increased

What is the main function of the cross fire tubes?

• To filter the air

• To ignite the fuel

• To allow for the cross-flow of combustion gases

• To cool the combustion gases