4/6/25, 9:50 CFESA GAS CH 8 - Gas Burners |
AM
CFESA GAS CH 8 - GAS BURNERS EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED
What is a Bunsen burner? A burner that mixes gas and air in the venturi.
What controls the primary air to a burner? Air shutters at the end of the venturi.
What controls the secondary air to a The draft developed by the flue
burner?
Verify the proper gas pressure, close off the air shutter until the flame turns
Give the step-by-step procedure for
yellow,
adjusting the primary air on a burner.
then open it up until the flame turns blue and lock it down.
What indicates a burner needs a primary Yellow flames.
air adjustment?
What indicates that a burner has a The flame floating off the burner with no defined shape.
secondary air problem?
What is meant by the term "port loading"? The volume of gas air mixture at the burner port.
What causes flashback? Low port loading with a fast burning gas.
What causes extinction pop? No port loading with the faster burning gas.
What can be done to minimize extinction Adjust air shutters to the minimum setting to maintain a blue flame.
pop?
Where does the flame burn on a ceramic On the surface of the tiles
tile infrared burner?
Infrared burners are very sensitive to what Gas pressure
detail on the equipment data plate?
Infrared burners need which kind of air to 100% primary air
burn?
Can infrared burners be repaired? Some can be rebuilt as long as the burner box is in good shape.
What is the big advantage to infrared They are energy efficient, produce a very high heat, and sear meet to keep the
burners? juices in.
What usually causes the decay of the Excessive gas pressure, or overheating of the burner box.
seals between the tiles on infrared
burners?
Why are infrared burners so popular on They sear the outside of the meat quickly, maintaining the juices within the meat.
broilers?
What are the two functions of the primary Support the combustion and cool the burner box.
air on an infrared burner?
What color should the surface of an Bright orange or red
infrared burner be?
What does a blue colored flame Either too much or too little primary air.
indicate on an infrared burner?
Why is gas pressure so important for If gas pressure is too low, the flames burn at the bracket rather than at the target.
impingement target burners?
What happens as you increase the flame The flame lifts off the burner
size on a non-areated pilot burner?
Describe the proper flame for an aerated The flame will be clean, blue, and well defined
pilot burner.
Can pilot burners wear out? If so, how Yes. defined flame.
will you know when one is worn You will know they are worn out when you cannot get a clean, blue, well
out?
1/
3
AM
CFESA GAS CH 8 - GAS BURNERS EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS VERIFIED
What is a Bunsen burner? A burner that mixes gas and air in the venturi.
What controls the primary air to a burner? Air shutters at the end of the venturi.
What controls the secondary air to a The draft developed by the flue
burner?
Verify the proper gas pressure, close off the air shutter until the flame turns
Give the step-by-step procedure for
yellow,
adjusting the primary air on a burner.
then open it up until the flame turns blue and lock it down.
What indicates a burner needs a primary Yellow flames.
air adjustment?
What indicates that a burner has a The flame floating off the burner with no defined shape.
secondary air problem?
What is meant by the term "port loading"? The volume of gas air mixture at the burner port.
What causes flashback? Low port loading with a fast burning gas.
What causes extinction pop? No port loading with the faster burning gas.
What can be done to minimize extinction Adjust air shutters to the minimum setting to maintain a blue flame.
pop?
Where does the flame burn on a ceramic On the surface of the tiles
tile infrared burner?
Infrared burners are very sensitive to what Gas pressure
detail on the equipment data plate?
Infrared burners need which kind of air to 100% primary air
burn?
Can infrared burners be repaired? Some can be rebuilt as long as the burner box is in good shape.
What is the big advantage to infrared They are energy efficient, produce a very high heat, and sear meet to keep the
burners? juices in.
What usually causes the decay of the Excessive gas pressure, or overheating of the burner box.
seals between the tiles on infrared
burners?
Why are infrared burners so popular on They sear the outside of the meat quickly, maintaining the juices within the meat.
broilers?
What are the two functions of the primary Support the combustion and cool the burner box.
air on an infrared burner?
What color should the surface of an Bright orange or red
infrared burner be?
What does a blue colored flame Either too much or too little primary air.
indicate on an infrared burner?
Why is gas pressure so important for If gas pressure is too low, the flames burn at the bracket rather than at the target.
impingement target burners?
What happens as you increase the flame The flame lifts off the burner
size on a non-areated pilot burner?
Describe the proper flame for an aerated The flame will be clean, blue, and well defined
pilot burner.
Can pilot burners wear out? If so, how Yes. defined flame.
will you know when one is worn You will know they are worn out when you cannot get a clean, blue, well
out?
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