CFESA GAS FINAL EXAM 2025 WITH ACTUAL
CORRECT QUESTIONS AND VERIFIED
DETAILED ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS |ALREADY
GRADED A+| |GUARANTEED PASS|LATEST
UPDATE
Don is called out to start up a new natural gas fired convection steamer. He finds that the
burner flames are blue with yellow tips. He should:
A) Check off the startup sheet as having a proper flame
B) Adjust the primary air until he gets a soft wavy flame with no inner blue cone
C) Adjust the primary air until he gets a blue flame with a soft inner blue core
D) Adjust the primary air for a sharp blue flame with a sharp blue/white inner core
D
Vern is working on an infrared broiler. It has had a history of burner failure due to decayed
insulation between the burners and broken ceramic tiles. He checks the gas pressure and the
pressure is 7" w.c. on natural gas. The most likely cause of the excessive failure is:
A) Excessive gas pressure
B) Insufficient gas pressure
C) Insufficient secondary air to cool the burners
D) Just a bad batch of burners
A
A 1 ½" black Iron Gate line running for 50 feet can supply 670 cubic feet of natural gas per hour,
or approximately 670,000 BTU's. A gas pressure regulator is rated at 800,000 BTU and is 1"
N.P.T. Another regulator is rated at 1,200,000 BTU's and is 1 ½" N.P.T. Which regulator must you
use?
A) Either will work as they both have the BTU capacity
B) The 1" because it will be much less expensive
C) The 1 ½" because you must maintain pipe size to prevent creating restrictions
D) Neither would be the right regulator
C
A gas pressure regulator is shipped alone with most LP fryers, either separate or as part of the
combination gas valve. This is a secondary regulator meaning that ___________.
1|Page
,A) It can be connected directly to an LP tank
B) It can be connected only after the pressure regulator on the LP tank
C) It can be used only if two fryers are being installed
D) It can be used only if the pipe size is 1/2"
B
Natural gas when produced from the ground has _______ odor.
A) A strong
B) A mild
C) No
D) A pungent
C
Any gas utilization equipment connected to a piping system shall have an accessible approved
manual shut off valve must be installed within ________.
A) 10 ft
B) 8 ft
C) 6 ft
D) 4 ft
D
When equipment is located in confined spaces with all air from inside the building, the confines
space shall have 2 openings, one 12" from the bottom and one 12" from the top. Each opening
shall have a free are of one square inch for every __________.
A) 3000 BTU
B) 2000 BTU
C) 1000 BTU
D) 4000 BTU
C
What is the purpose of the thermal link in a gas line quick disconnect?
A) To keep the line form freezing
B) To keep the line from overheating
C) To activate the disconnect when it is snapped together
D) To melt out and shut off the gas supply in case of a fire
D
Food service hotplates and grills shall be installed with a horizontal clearance from combustible
material not less than:
A) 36 inches
B) 18 inches
C) 48 inches
D) 12 inches
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, D
Equipment for use with casters shall be installed in accordance with their listing and provide a
means for limiting movement by:
A) Caster locks
B) Rigid gas pipe
C) Restraining cable or chain
D) Covered quick disconnect hose
C
Modern safety pilot devices must turn off the gas supply no later than _____ minute(s) after the
pilot goes out.
A) One
B) Two
C) Three
D) Four
A OR B
For safety purposes, what is your first responsibility when concentration of gas is detected?
A) Call the fire department
B) Ventilate the area by opening windows and doors
C) Clear the area of all occupants
D) Cut off the gas at the meter
C
Most jurisdictions today require flexible gas connectors in foodservice operations to be plastic
coated because ____________.
A) It keeps the hose from chaffing
B) It keeps the stainless steel braid from unraveling
C) A person can get cut from loose stainless steel braids
D) The ease of cleaning for sanitation
D
Clearance for listed food service equipment such as ranges for hotels and restaurants, deep
fryers, gas fired kettles, broilers, baking and roasting ovens shall be installed at least ________
inches from combustible material.
A) 12"
B) 10"
C) 8"
D) 6"
A
When servicing a tight gas cock you must clean off all of the old grease with ______, and
re-lubricate using _______:
3|Page
CORRECT QUESTIONS AND VERIFIED
DETAILED ANSWERS |FREQUENTLY TESTED
QUESTIONS AND SOLUTIONS |ALREADY
GRADED A+| |GUARANTEED PASS|LATEST
UPDATE
Don is called out to start up a new natural gas fired convection steamer. He finds that the
burner flames are blue with yellow tips. He should:
A) Check off the startup sheet as having a proper flame
B) Adjust the primary air until he gets a soft wavy flame with no inner blue cone
C) Adjust the primary air until he gets a blue flame with a soft inner blue core
D) Adjust the primary air for a sharp blue flame with a sharp blue/white inner core
D
Vern is working on an infrared broiler. It has had a history of burner failure due to decayed
insulation between the burners and broken ceramic tiles. He checks the gas pressure and the
pressure is 7" w.c. on natural gas. The most likely cause of the excessive failure is:
A) Excessive gas pressure
B) Insufficient gas pressure
C) Insufficient secondary air to cool the burners
D) Just a bad batch of burners
A
A 1 ½" black Iron Gate line running for 50 feet can supply 670 cubic feet of natural gas per hour,
or approximately 670,000 BTU's. A gas pressure regulator is rated at 800,000 BTU and is 1"
N.P.T. Another regulator is rated at 1,200,000 BTU's and is 1 ½" N.P.T. Which regulator must you
use?
A) Either will work as they both have the BTU capacity
B) The 1" because it will be much less expensive
C) The 1 ½" because you must maintain pipe size to prevent creating restrictions
D) Neither would be the right regulator
C
A gas pressure regulator is shipped alone with most LP fryers, either separate or as part of the
combination gas valve. This is a secondary regulator meaning that ___________.
1|Page
,A) It can be connected directly to an LP tank
B) It can be connected only after the pressure regulator on the LP tank
C) It can be used only if two fryers are being installed
D) It can be used only if the pipe size is 1/2"
B
Natural gas when produced from the ground has _______ odor.
A) A strong
B) A mild
C) No
D) A pungent
C
Any gas utilization equipment connected to a piping system shall have an accessible approved
manual shut off valve must be installed within ________.
A) 10 ft
B) 8 ft
C) 6 ft
D) 4 ft
D
When equipment is located in confined spaces with all air from inside the building, the confines
space shall have 2 openings, one 12" from the bottom and one 12" from the top. Each opening
shall have a free are of one square inch for every __________.
A) 3000 BTU
B) 2000 BTU
C) 1000 BTU
D) 4000 BTU
C
What is the purpose of the thermal link in a gas line quick disconnect?
A) To keep the line form freezing
B) To keep the line from overheating
C) To activate the disconnect when it is snapped together
D) To melt out and shut off the gas supply in case of a fire
D
Food service hotplates and grills shall be installed with a horizontal clearance from combustible
material not less than:
A) 36 inches
B) 18 inches
C) 48 inches
D) 12 inches
2|Page
, D
Equipment for use with casters shall be installed in accordance with their listing and provide a
means for limiting movement by:
A) Caster locks
B) Rigid gas pipe
C) Restraining cable or chain
D) Covered quick disconnect hose
C
Modern safety pilot devices must turn off the gas supply no later than _____ minute(s) after the
pilot goes out.
A) One
B) Two
C) Three
D) Four
A OR B
For safety purposes, what is your first responsibility when concentration of gas is detected?
A) Call the fire department
B) Ventilate the area by opening windows and doors
C) Clear the area of all occupants
D) Cut off the gas at the meter
C
Most jurisdictions today require flexible gas connectors in foodservice operations to be plastic
coated because ____________.
A) It keeps the hose from chaffing
B) It keeps the stainless steel braid from unraveling
C) A person can get cut from loose stainless steel braids
D) The ease of cleaning for sanitation
D
Clearance for listed food service equipment such as ranges for hotels and restaurants, deep
fryers, gas fired kettles, broilers, baking and roasting ovens shall be installed at least ________
inches from combustible material.
A) 12"
B) 10"
C) 8"
D) 6"
A
When servicing a tight gas cock you must clean off all of the old grease with ______, and
re-lubricate using _______:
3|Page
