Page 1 of 60
GAS CFESA TEST ACTUAL EXAM NEWEST 2025 | ALL
100 QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+| NEWEST VERSION
The purpose of a draft hood/draft diverter is_______?
A) To prevent drafts from entering the burner compartment that
comes from the power cent
hoods.
B) To prevent the combustion chamber from overheating, and
allowing air to come down the
vent pipe into the room.
C) To allow the flue to control the amount of secondary air
drawn in instead of the vent pipe,
and to prevent air from coming back down the vent into the
combustion chamber
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D) To allow the vent pipe to control the amount of secondary air
drawn into the combustion
chamber as designed by its height above the hood.
.....ANSWER..... C
The two primary functions of the flue are____?
A) The remove combustion byproducts and heat from the
equipment
B) To create a draft to pull in secondary air and remove the
byproducts form the combustion
chamber
C) To create a draft to keep the burners cool and remove
byproducts from the cooking area
D) To remove the excessive heat to keep the burners, and
cooking surface from overheating .....ANSWER..... B
,Page 3 of 60
To solve unusual venting problems like negative pressure, high
winds, long vents, the installe
should use_____?
A) A larger size vent pipe
B) Vent outlets
C) Vent top turbines
D) A draft hood .....ANSWER..... D
What is a bypass flame?
A) The smallest flame that will keep the burners lit after the gas
thermostat has reached the
temperature set point
B) A flame that is 3/8" tall after the thermostat shuts off
C) A flame left on the burner to keep the pilot form going out
, Page 4 of 60
D) A flame to a special part of the burner after the main burner
goes off .....ANSWER..... A
The primary purpose of a vent on a regulator is to:
A) Vent leaking gas
B) Allow diaphragm movement
C) Allow high pressure
D) Monitor flow .....ANSWER..... B
A properly burning infrared ceramic burner will look______?
A) Blue
B) Bright reddish orange
C) Dull red
D) Blue with a tint of orange .....ANSWER..... B
Vent lines are required on regulators above 1" and must be
vented:
GAS CFESA TEST ACTUAL EXAM NEWEST 2025 | ALL
100 QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+| NEWEST VERSION
The purpose of a draft hood/draft diverter is_______?
A) To prevent drafts from entering the burner compartment that
comes from the power cent
hoods.
B) To prevent the combustion chamber from overheating, and
allowing air to come down the
vent pipe into the room.
C) To allow the flue to control the amount of secondary air
drawn in instead of the vent pipe,
and to prevent air from coming back down the vent into the
combustion chamber
,Page 2 of 60
D) To allow the vent pipe to control the amount of secondary air
drawn into the combustion
chamber as designed by its height above the hood.
.....ANSWER..... C
The two primary functions of the flue are____?
A) The remove combustion byproducts and heat from the
equipment
B) To create a draft to pull in secondary air and remove the
byproducts form the combustion
chamber
C) To create a draft to keep the burners cool and remove
byproducts from the cooking area
D) To remove the excessive heat to keep the burners, and
cooking surface from overheating .....ANSWER..... B
,Page 3 of 60
To solve unusual venting problems like negative pressure, high
winds, long vents, the installe
should use_____?
A) A larger size vent pipe
B) Vent outlets
C) Vent top turbines
D) A draft hood .....ANSWER..... D
What is a bypass flame?
A) The smallest flame that will keep the burners lit after the gas
thermostat has reached the
temperature set point
B) A flame that is 3/8" tall after the thermostat shuts off
C) A flame left on the burner to keep the pilot form going out
, Page 4 of 60
D) A flame to a special part of the burner after the main burner
goes off .....ANSWER..... A
The primary purpose of a vent on a regulator is to:
A) Vent leaking gas
B) Allow diaphragm movement
C) Allow high pressure
D) Monitor flow .....ANSWER..... B
A properly burning infrared ceramic burner will look______?
A) Blue
B) Bright reddish orange
C) Dull red
D) Blue with a tint of orange .....ANSWER..... B
Vent lines are required on regulators above 1" and must be
vented:
