Journeyman Oil Exam Complete Questions And
100% Correct Answers
\.The use of furnace cement or other materials to seal a cracked heat exchanger or
parts which provide closure shall be for _________ repairs only. - ANSWERS✔-
Temporary repairs
\.If a fuel storage tank is permanently removed from service for whatever reason,
the tank and all the piping connected to it, including the outside fill and vent
piping and any supply piping connected to the appliance, shall be: - ANSWERS✔--
Emptied of all liquid contents and sludge.
-Cleaned and rendered free of combustible vapors.
-Removed from premises or property.
-Properly disposed of in accordance with all applicable local, state, and federal
rules and regulations.
\.What is an indicator that you may have a plugged fuel filter? - ANSWERS✔--High
vacuum on the oil line.
-Tripped control.
\.What is the normal fuel pressure delivered to the nozzle? - ANSWERS✔--Older
burners = 100psi
-Newer burners= 140psi
,\.Oil lines need about ______ to ______ Hg of vacuum for each foot we lift of oil.
_____ inch of vacuum for each 10 feet of horizontal run and ______ inch for a
clean oil filter. - ANSWERS✔-.75' to 1" Hg for each foot of lifted oil.
1" of vacuum for each 10 feet of horizontal run.
1/2" of vacuum for a clean oil filter.
\.To calculate the vacuum, figure about ____ of vacuum for each foot of oil lift,
_____ of vacuum for each _____ feet of horizontal run, and ______ for a clean oil
filter. - ANSWERS✔-1" inch
1" inch
10' feet
1/2" inch
\.What is the calculated vacuum for a two stage pump operating with 7ft of lift
and 30ft of horizontal offset? - ANSWERS✔-10.5 Hg
\.What is the radius of a pipe? - ANSWERS✔-Half the diameter.
\.What is the diameter of a pipe? - ANSWERS✔-Distance across the the pipe.
\.What is the circumference of a pipe? - ANSWERS✔-Diameter x PI
\.The technician may install the branch circuit overcurrent device, provided a
space in the electrical panel is available. The technician may also install the
,associated low voltage wiring provided its power supply is fed from the heating
branch circuit. True/False? - ANSWERS✔-Ture
\.Warm air ducts can have a heat loss as great as? - ANSWERS✔-40%
\.Direct vent heating units less than 50,000 BTU's may be vented _______ from a
window. - ANSWERS✔-9" inches
\.One pound of water pressure is good for how many feet of height in pipe? -
ANSWERS✔-2.3 feet
\.Can a chimney connector pass through a wall? - ANSWERS✔-Yes.
If all combustible materials in the wall are cut away from the chimney connector a
sufficient distance to provide the clearance required and a non combustible
material is used to close up the opening.
\.Appliances requiring a negative chimney draft, the chimney connector shall be
not longer than ______% of the portion of the chimney above the chimney
connector inlet. - ANSWERS✔-75%
\.The resistance of a chad cell should be around _______ ohms or more when
sensing darkness. - ANSWERS✔-100,000 ohms
\.What is the main reason for chamberless firing? - ANSWERS✔-Better heat
transfer.
, \.When doing an efficiency test, the burner must run for a minimum of 5 minutes
to allow... - ANSWERS✔-The appliance to reach a steady state.
\.How many times do you pump a "wet" tester for a proper CO2 sample? -
ANSWERS✔-18-20 times.
\.What are the normal ohms readings of a cad cell when the burner is running? -
ANSWERS✔-300 - 1000 ohms.
\.Controls that are reverse acting operate in what manner? - ANSWERS✔-Close on
rise.
\.Name the function of a fan/limit switch on a warm air furnace. - ANSWERS✔--
Monitors heat/temp.
-High limit.
\.On multi-unit installations the emergency and thermal electrical switches shall
be wired in series through individual unit relays so that if one switch is opened, all
the equipment will be rendered inoperable whenever the emergency switch is
opened. True/false? - ANSWERS✔-True.
\.Vent pipes shall terminate no more than ____ feet from the fill pipe and at a
point visible from the fill point. - ANSWERS✔-12 feet.
100% Correct Answers
\.The use of furnace cement or other materials to seal a cracked heat exchanger or
parts which provide closure shall be for _________ repairs only. - ANSWERS✔-
Temporary repairs
\.If a fuel storage tank is permanently removed from service for whatever reason,
the tank and all the piping connected to it, including the outside fill and vent
piping and any supply piping connected to the appliance, shall be: - ANSWERS✔--
Emptied of all liquid contents and sludge.
-Cleaned and rendered free of combustible vapors.
-Removed from premises or property.
-Properly disposed of in accordance with all applicable local, state, and federal
rules and regulations.
\.What is an indicator that you may have a plugged fuel filter? - ANSWERS✔--High
vacuum on the oil line.
-Tripped control.
\.What is the normal fuel pressure delivered to the nozzle? - ANSWERS✔--Older
burners = 100psi
-Newer burners= 140psi
,\.Oil lines need about ______ to ______ Hg of vacuum for each foot we lift of oil.
_____ inch of vacuum for each 10 feet of horizontal run and ______ inch for a
clean oil filter. - ANSWERS✔-.75' to 1" Hg for each foot of lifted oil.
1" of vacuum for each 10 feet of horizontal run.
1/2" of vacuum for a clean oil filter.
\.To calculate the vacuum, figure about ____ of vacuum for each foot of oil lift,
_____ of vacuum for each _____ feet of horizontal run, and ______ for a clean oil
filter. - ANSWERS✔-1" inch
1" inch
10' feet
1/2" inch
\.What is the calculated vacuum for a two stage pump operating with 7ft of lift
and 30ft of horizontal offset? - ANSWERS✔-10.5 Hg
\.What is the radius of a pipe? - ANSWERS✔-Half the diameter.
\.What is the diameter of a pipe? - ANSWERS✔-Distance across the the pipe.
\.What is the circumference of a pipe? - ANSWERS✔-Diameter x PI
\.The technician may install the branch circuit overcurrent device, provided a
space in the electrical panel is available. The technician may also install the
,associated low voltage wiring provided its power supply is fed from the heating
branch circuit. True/False? - ANSWERS✔-Ture
\.Warm air ducts can have a heat loss as great as? - ANSWERS✔-40%
\.Direct vent heating units less than 50,000 BTU's may be vented _______ from a
window. - ANSWERS✔-9" inches
\.One pound of water pressure is good for how many feet of height in pipe? -
ANSWERS✔-2.3 feet
\.Can a chimney connector pass through a wall? - ANSWERS✔-Yes.
If all combustible materials in the wall are cut away from the chimney connector a
sufficient distance to provide the clearance required and a non combustible
material is used to close up the opening.
\.Appliances requiring a negative chimney draft, the chimney connector shall be
not longer than ______% of the portion of the chimney above the chimney
connector inlet. - ANSWERS✔-75%
\.The resistance of a chad cell should be around _______ ohms or more when
sensing darkness. - ANSWERS✔-100,000 ohms
\.What is the main reason for chamberless firing? - ANSWERS✔-Better heat
transfer.
, \.When doing an efficiency test, the burner must run for a minimum of 5 minutes
to allow... - ANSWERS✔-The appliance to reach a steady state.
\.How many times do you pump a "wet" tester for a proper CO2 sample? -
ANSWERS✔-18-20 times.
\.What are the normal ohms readings of a cad cell when the burner is running? -
ANSWERS✔-300 - 1000 ohms.
\.Controls that are reverse acting operate in what manner? - ANSWERS✔-Close on
rise.
\.Name the function of a fan/limit switch on a warm air furnace. - ANSWERS✔--
Monitors heat/temp.
-High limit.
\.On multi-unit installations the emergency and thermal electrical switches shall
be wired in series through individual unit relays so that if one switch is opened, all
the equipment will be rendered inoperable whenever the emergency switch is
opened. True/false? - ANSWERS✔-True.
\.Vent pipes shall terminate no more than ____ feet from the fill pipe and at a
point visible from the fill point. - ANSWERS✔-12 feet.
