Gas CFESA Practice Test Latest Update 2025-
2026 Actual Exam 100 Questions with 100%
Verified Correct Answers Guaranteed A+ Verified
by Professor
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 - CORRECT ANSWER: C
A 3/4 elbow is equivalent to how long a pipe?
A) 2 feet
B) 1 foot
C) 3 feet
D) 4 feet - CORRECT ANSWER: A
A bank of three fryers is connected to a gas line with a flexible gas line and quick
disconnect
assembly. The customer came in this morning and noticed that none of the fryers are
working.
,Checking, he found the pilots were out, and proceeded to light all three. As soon as he
tried to
turn on the first fryer all three pilots went out. What is the first thing the customer should
be
told to check?
A) That the gas valve is turned on
B) That the gas line is not kinked
C) That the quick disconnect is fully engaged together
D) That the power is turned on to the fryers - CORRECT ANSWER: C
A BJ thermostat will be ruined permanently if not adjusted properly. To make an
adjustment you
must:
A) Turn the adjustment screw counter clockwise only
B) Loosen the lock screw before turning the adjustment screw
C) Pry out the adjustment screw before turning it
D) Push in and turn the adjustment screw no more than ¼ turn in either direction -
CORRECT ANSWER: D
A combination gas valve replaces a separate manual shut off valve, safety magnet, gas
pressure
regulators, and ________.
A) thermocouple
B) thermopile
C) solenoid valve
D) high limit temperature control - CORRECT ANSWER: C
A convection oven is controlled by a cooking computer which seems to malfunction at
busy
,times of the day. Jay should check to see that ________________.
A) The thermocouple is putting out the proper voltage
B) The safety valve is not shorted out
C) The computer is properly grounded
D) All of the cooling fans in the control compartment are operating properly - CORRECT
ANSWER: D
A gas fired conveyor oven is slow in firing but heats to the set temperature. Then the
high flame
disappears and the temperature drops until the oven is barely warm. Then it heats to
temperature again. You should suspect:
A) The thermocouple
B) The temperature indicator
C) The burner blower motor
D) A sticking solenoid valve - CORRECT ANSWER: D
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 ___________.
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" - CORRECT ANSWER: B
A high efficiency fryer continuously backfires even though the ignitor has been adjusted.
What
should the tech do?
A) All the answers apply
, B) Check for breaks in the insulation between tiles
C) Suspect a leaking tank
D) Check for erratic gas pressure - CORRECT ANSWER: B
A Keating fryer has a pilot valve that is locked into the circuit through a mercury vapor
switch.
The pilot will not stay lit when the momentary switch is released indicating that the
mercury
switch contacts are not closing. Before changing the switch Joe should do which of the
following?
A) Make sure that sensor is in the outer most part of the pilot flame
B) Make sure that the tip of the sensor is being heated cherry red by the pilot flame
C) Check to ensure that the gas pressure is not too low
D) Make sure that the sensor is positioned away from the direct pilot flames so that it
does not
overheat - CORRECT ANSWER: B
A line voltage module for an electronic ignition system is usually sensitive to
___________.
A) Poor harmonics in the electric supply
B) Polarity of neutral and hot lines
C) Low voltage spikes
D) Overheating step down transformers - CORRECT ANSWER: B
A properly burning infrared ceramic burner will look______?
A) Blue
B) Bright reddish orange
C) Dull red
2026 Actual Exam 100 Questions with 100%
Verified Correct Answers Guaranteed A+ Verified
by Professor
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 - CORRECT ANSWER: C
A 3/4 elbow is equivalent to how long a pipe?
A) 2 feet
B) 1 foot
C) 3 feet
D) 4 feet - CORRECT ANSWER: A
A bank of three fryers is connected to a gas line with a flexible gas line and quick
disconnect
assembly. The customer came in this morning and noticed that none of the fryers are
working.
,Checking, he found the pilots were out, and proceeded to light all three. As soon as he
tried to
turn on the first fryer all three pilots went out. What is the first thing the customer should
be
told to check?
A) That the gas valve is turned on
B) That the gas line is not kinked
C) That the quick disconnect is fully engaged together
D) That the power is turned on to the fryers - CORRECT ANSWER: C
A BJ thermostat will be ruined permanently if not adjusted properly. To make an
adjustment you
must:
A) Turn the adjustment screw counter clockwise only
B) Loosen the lock screw before turning the adjustment screw
C) Pry out the adjustment screw before turning it
D) Push in and turn the adjustment screw no more than ¼ turn in either direction -
CORRECT ANSWER: D
A combination gas valve replaces a separate manual shut off valve, safety magnet, gas
pressure
regulators, and ________.
A) thermocouple
B) thermopile
C) solenoid valve
D) high limit temperature control - CORRECT ANSWER: C
A convection oven is controlled by a cooking computer which seems to malfunction at
busy
,times of the day. Jay should check to see that ________________.
A) The thermocouple is putting out the proper voltage
B) The safety valve is not shorted out
C) The computer is properly grounded
D) All of the cooling fans in the control compartment are operating properly - CORRECT
ANSWER: D
A gas fired conveyor oven is slow in firing but heats to the set temperature. Then the
high flame
disappears and the temperature drops until the oven is barely warm. Then it heats to
temperature again. You should suspect:
A) The thermocouple
B) The temperature indicator
C) The burner blower motor
D) A sticking solenoid valve - CORRECT ANSWER: D
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 ___________.
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" - CORRECT ANSWER: B
A high efficiency fryer continuously backfires even though the ignitor has been adjusted.
What
should the tech do?
A) All the answers apply
, B) Check for breaks in the insulation between tiles
C) Suspect a leaking tank
D) Check for erratic gas pressure - CORRECT ANSWER: B
A Keating fryer has a pilot valve that is locked into the circuit through a mercury vapor
switch.
The pilot will not stay lit when the momentary switch is released indicating that the
mercury
switch contacts are not closing. Before changing the switch Joe should do which of the
following?
A) Make sure that sensor is in the outer most part of the pilot flame
B) Make sure that the tip of the sensor is being heated cherry red by the pilot flame
C) Check to ensure that the gas pressure is not too low
D) Make sure that the sensor is positioned away from the direct pilot flames so that it
does not
overheat - CORRECT ANSWER: B
A line voltage module for an electronic ignition system is usually sensitive to
___________.
A) Poor harmonics in the electric supply
B) Polarity of neutral and hot lines
C) Low voltage spikes
D) Overheating step down transformers - CORRECT ANSWER: B
A properly burning infrared ceramic burner will look______?
A) Blue
B) Bright reddish orange
C) Dull red
