Journeyman Oil OA 2026/2027 COMPLETE
QUESTIONS WITH CORRECT ANSWERS ||
RECENT VERSION
1. When must an oil safety valve (OSV) be used in a fuel supply system? -
ANSWER ✅ -When the top of the tank is 8 feet or more above the
burner.
-When 3 tanks are connected together supplying one burner.
2. What is carbon monoxide (co) produced by? - ANSWER ✅ -Incomplete
combustion.
-Too much combustion air.
-Too little combustion air.
3. What are the three phases of solid fuel combustion? - ANSWER ✅ -Solid
-Gas
-Preheat
4. Where are the tertiary openings on a fixed combustion head? - ANSWER
✅ Around the outside of the retention head.
5. Flue pipe diameter of 6" or larger shall be made of _________ gauge
sheet metal? - ANSWER ✅ 24 gauge.
6. Room cu. ft. x 1000 Btu/50 cu. ft. = ______ Btu x 1 GPH #2 fuel/140,000
Btu =GPH cant be over this number. - ANSWER ✅
,7. Means shall be provided to limit the oil pressure at the appliance inlet to a
maximum gauge pressure of _______ PSI. - ANSWER ✅ 3 PSI.
8. Sheathed cable must be supported within what distance from a
connection? - ANSWER ✅ 12" inches.
9. At what pressure would a relief blow off on a hot water boiler? -
ANSWER ✅ 30 PSI.
10.You are required to pitch the oil tank ______ per foot. - ANSWER ✅
1/4" per foot.
11.What type of concrete blocks may be used with an oil tank? - ANSWER
✅ 4"x8"x16" Solid blocks.
12.Where should a service disconnect switch be placed in relation to a
burner? - ANSWER ✅ Within arms reach for control of the burner while
observing the flame.
13.The required clearance for an oil fired appliance above the flue pipe from
combustible materials is... - ANSWER ✅ 18"
14.Low water cut off controls are required on... - ANSWER ✅ Steam
Boilers and Hot water boilers.
,15.The repair to a heat exchanger by welding shall be preformed by a state
certified welder only. It is the responsibility of the master licensee to
oversee such repairs. True/False - ANSWER ✅ True
16.How many 330 oil tanks may be tied together? - ANSWER ✅ 4
17.This type of transformer is designed to increase the voltage of ______
required to ignite the fuel oil.
110V to 14kV
128V to 11kV
3.)1280V to 11kV
4.)1100V to 14kV - ANSWER ✅ 110V to 14kV
18.How deep does the gravel base have to be for outside fuel tanks? -
ANSWER ✅ 6"
19.Using an outside above ground tank, how many firematic valves must be
installed? - ANSWER ✅ (3)
One at the burner.
One at the tank.
One where it enters the building.
20.What is the maximum number of conductors for this box? - ANSWER ✅
Metal Boxes Max Number of Conductors
14 Gauge wire
4 x 1 1/2 round/octagonal
21.How many #14 AWG wires can be run in 3/8" FMC - ANSWER ✅ 6
, 22.A house built with tight construction and the basement is 20'x20'x8' no
outside air would be required if the furnace input was 125,000 BTU's.
True/False? - ANSWER ✅ False
23.There are two kinds of armored cable, what are they? - ANSWER ✅ - BX
cable
MC cable
24.Modern oil burners operate with what CO2 levels ________%? -
ANSWER ✅ 10-13%
25.Anything that uses electricity to preform useful work is called? -
ANSWER ✅ Load
26.Can a chimney connector pass through a floor or ceiling? - ANSWER ✅
No
27.What term best describes the resistance to oil flow? - ANSWER ✅ Oil
viscosity.
28.What is the minimum amount of fuel that can be stored without a vent? -
ANSWER ✅ 10 gallons
29.With heating equipment located in a locked room, where should the
emergency switch be located? - ANSWER ✅ Outside the room, may be
protected by encased box with break through glass front.
QUESTIONS WITH CORRECT ANSWERS ||
RECENT VERSION
1. When must an oil safety valve (OSV) be used in a fuel supply system? -
ANSWER ✅ -When the top of the tank is 8 feet or more above the
burner.
-When 3 tanks are connected together supplying one burner.
2. What is carbon monoxide (co) produced by? - ANSWER ✅ -Incomplete
combustion.
-Too much combustion air.
-Too little combustion air.
3. What are the three phases of solid fuel combustion? - ANSWER ✅ -Solid
-Gas
-Preheat
4. Where are the tertiary openings on a fixed combustion head? - ANSWER
✅ Around the outside of the retention head.
5. Flue pipe diameter of 6" or larger shall be made of _________ gauge
sheet metal? - ANSWER ✅ 24 gauge.
6. Room cu. ft. x 1000 Btu/50 cu. ft. = ______ Btu x 1 GPH #2 fuel/140,000
Btu =GPH cant be over this number. - ANSWER ✅
,7. Means shall be provided to limit the oil pressure at the appliance inlet to a
maximum gauge pressure of _______ PSI. - ANSWER ✅ 3 PSI.
8. Sheathed cable must be supported within what distance from a
connection? - ANSWER ✅ 12" inches.
9. At what pressure would a relief blow off on a hot water boiler? -
ANSWER ✅ 30 PSI.
10.You are required to pitch the oil tank ______ per foot. - ANSWER ✅
1/4" per foot.
11.What type of concrete blocks may be used with an oil tank? - ANSWER
✅ 4"x8"x16" Solid blocks.
12.Where should a service disconnect switch be placed in relation to a
burner? - ANSWER ✅ Within arms reach for control of the burner while
observing the flame.
13.The required clearance for an oil fired appliance above the flue pipe from
combustible materials is... - ANSWER ✅ 18"
14.Low water cut off controls are required on... - ANSWER ✅ Steam
Boilers and Hot water boilers.
,15.The repair to a heat exchanger by welding shall be preformed by a state
certified welder only. It is the responsibility of the master licensee to
oversee such repairs. True/False - ANSWER ✅ True
16.How many 330 oil tanks may be tied together? - ANSWER ✅ 4
17.This type of transformer is designed to increase the voltage of ______
required to ignite the fuel oil.
110V to 14kV
128V to 11kV
3.)1280V to 11kV
4.)1100V to 14kV - ANSWER ✅ 110V to 14kV
18.How deep does the gravel base have to be for outside fuel tanks? -
ANSWER ✅ 6"
19.Using an outside above ground tank, how many firematic valves must be
installed? - ANSWER ✅ (3)
One at the burner.
One at the tank.
One where it enters the building.
20.What is the maximum number of conductors for this box? - ANSWER ✅
Metal Boxes Max Number of Conductors
14 Gauge wire
4 x 1 1/2 round/octagonal
21.How many #14 AWG wires can be run in 3/8" FMC - ANSWER ✅ 6
, 22.A house built with tight construction and the basement is 20'x20'x8' no
outside air would be required if the furnace input was 125,000 BTU's.
True/False? - ANSWER ✅ False
23.There are two kinds of armored cable, what are they? - ANSWER ✅ - BX
cable
MC cable
24.Modern oil burners operate with what CO2 levels ________%? -
ANSWER ✅ 10-13%
25.Anything that uses electricity to preform useful work is called? -
ANSWER ✅ Load
26.Can a chimney connector pass through a floor or ceiling? - ANSWER ✅
No
27.What term best describes the resistance to oil flow? - ANSWER ✅ Oil
viscosity.
28.What is the minimum amount of fuel that can be stored without a vent? -
ANSWER ✅ 10 gallons
29.With heating equipment located in a locked room, where should the
emergency switch be located? - ANSWER ✅ Outside the room, may be
protected by encased box with break through glass front.
