OREGON HEATING OIL TANK SUPERVISOR
FINAL PAPER 2026 EXAM STUDY SHEET
◉ When a cad cell is sighting flame, it's resistance is: Answer: Below
1,600 ohms of resistance
◉ When a cad cell is located in the dark, it's resistance is:. Answer:
Above 100,000 ohms of resistance
◉ What two flame detection devices are used in oil fired primary
controls. Answer: Bi-metal and cadmium sulfide
◉ Which component is used to control primary air in a high
pressure gun burner?. Answer: An adjustable air collar.
◉ Which component is used to increase air velocity in the air tube of
a high pressure gun burner.. Answer: The static disk
◉ The flame color characteristics of a high pressure gun burner
should be :. Answer: A yellow orange color
◉ For every pound of fuel oil that is burned, how many pounds of
primary air are required. Answer: 14.4
, ◉ For every pound of fuel oil that is burned, how many pounds of
excess air are required?. Answer: 7.2
◉ The draft produced by a chimney is best measured with a _________
gauge. Answer: Inches of water column (WC)
◉ What is used on an oil burner motor to protect against an
excessive load?. Answer: A manual reset overload protector.
◉ A power-venter installed inside the structure should be mounted.
Answer: As closer to the outside wall as possible
◉ One reason why oil would drop from the nozzle after the burner
shuts down is. Answer: A faulty fuel unit cut-off
◉ The most common type of burner design in use today is the.
Answer: High pressure atomizing
◉ Which of the following may prevent ignition of the flame?.
Answer: -20F oil
FINAL PAPER 2026 EXAM STUDY SHEET
◉ When a cad cell is sighting flame, it's resistance is: Answer: Below
1,600 ohms of resistance
◉ When a cad cell is located in the dark, it's resistance is:. Answer:
Above 100,000 ohms of resistance
◉ What two flame detection devices are used in oil fired primary
controls. Answer: Bi-metal and cadmium sulfide
◉ Which component is used to control primary air in a high
pressure gun burner?. Answer: An adjustable air collar.
◉ Which component is used to increase air velocity in the air tube of
a high pressure gun burner.. Answer: The static disk
◉ The flame color characteristics of a high pressure gun burner
should be :. Answer: A yellow orange color
◉ For every pound of fuel oil that is burned, how many pounds of
primary air are required. Answer: 14.4
, ◉ For every pound of fuel oil that is burned, how many pounds of
excess air are required?. Answer: 7.2
◉ The draft produced by a chimney is best measured with a _________
gauge. Answer: Inches of water column (WC)
◉ What is used on an oil burner motor to protect against an
excessive load?. Answer: A manual reset overload protector.
◉ A power-venter installed inside the structure should be mounted.
Answer: As closer to the outside wall as possible
◉ One reason why oil would drop from the nozzle after the burner
shuts down is. Answer: A faulty fuel unit cut-off
◉ The most common type of burner design in use today is the.
Answer: High pressure atomizing
◉ Which of the following may prevent ignition of the flame?.
Answer: -20F oil
