NORA OIL HEAT 2025 EXAM REVIEW QUESTIONS
NEW!!!
What is the final adjustment you make when tuning up an oil burner?
A)Draft
B) Change Nozzle
C)Oil Pressure
D)Combustion Air - CORRECT ANSWER>>>>D)Combustion Air
What is the effect of having a dirty burner squirrel cage fan?
A)Water Hammer
B)Incomplete combustion
C)Low Co2
D)Blocked Chimney - CORRECT ANSWER>>>>B)Incomplete Combustion
New burners produce "high static pressure"
A)Produce more spark
B)Push flue gases through tighter boilers
C) Get better atomization - CORRECT ANSWER>>>>B)Push flue gases through tighter boilers
Water oil in tanks is necessary because?
A) Adds btu value
B) Provides a place for bacteria to grow - CORRECT ANSWER>>>>B)Provides a place for
bacteria to grow
Water enters tanks through?
A)Fill caps
B)Vents
C)Delivery truck
D)All - CORRECT ANSWER>>>>D)All
A "vent alarm"
A)Tells delivery person when to stop
B)Call tech when flame fails
C)Signals when air vent is clogged - CORRECT ANSWER>>>>A)Tells delivery person when
to stop
The best way to clear a clogged oil line is to
A)Turn the pump pressure up
B)Use a Co2 cartridge
C)Use a hand pump to suck the dirt out - CORRECT ANSWER>>>>C)Use a hand pump to suck
the dirt out
The vacuum expected on pump can be calculated by 1"hg for every foot of lift and 1" for every
10' run. NOTE: 1/2 for filter
, A) T
B)F - CORRECT ANSWER>>>>A)T
If there is an air leak in the oil suction line to a burner
A)The ignitor will fail
B)The flame may pulse
C)Draft will increase - CORRECT ANSWER>>>>B)The flame may pulse
A fuel de-aerator removes small amounts of sludge from the oil
A)T
B)F - CORRECT ANSWER>>>>B)F - it removes small amounts of air from the oil
Nozzle after-drip can be caused by?
A) Too large a nozzle
B)Dirty Oil
C)Air in the nozzle line >"cracked line" - CORRECT ANSWER>>>>C)Air in the nozzle line
When will a barometric damper open wider?
A)Hot summer day
B)Cold winter day
C)No wind day - CORRECT ANSWER>>>>B)Cold winter day (there is higher draft)
When is a burner "over fired"?
A)When the nozzle gph is too high
B)When the pressure is too high
C)When the stack temperature is too high
D)All - CORRECT ANSWER>>>>D) All
When is a power venter used?
A)To ensure sufficient draft
B) When horizontal venting
C)On every installation - CORRECT ANSWER>>>>A)To ensure sufficient draft
Co2 "red fluid" is good for how many tests?
A)100
B)200
C)300
D)400 - CORRECT ANSWER>>>>B)200
A Co2 test indicates
A)Smoke
B)Complete Combustion
C)Excess Air
D)Carbon Monoxide - CORRECT ANSWER>>>>C)Excess Air
NEW!!!
What is the final adjustment you make when tuning up an oil burner?
A)Draft
B) Change Nozzle
C)Oil Pressure
D)Combustion Air - CORRECT ANSWER>>>>D)Combustion Air
What is the effect of having a dirty burner squirrel cage fan?
A)Water Hammer
B)Incomplete combustion
C)Low Co2
D)Blocked Chimney - CORRECT ANSWER>>>>B)Incomplete Combustion
New burners produce "high static pressure"
A)Produce more spark
B)Push flue gases through tighter boilers
C) Get better atomization - CORRECT ANSWER>>>>B)Push flue gases through tighter boilers
Water oil in tanks is necessary because?
A) Adds btu value
B) Provides a place for bacteria to grow - CORRECT ANSWER>>>>B)Provides a place for
bacteria to grow
Water enters tanks through?
A)Fill caps
B)Vents
C)Delivery truck
D)All - CORRECT ANSWER>>>>D)All
A "vent alarm"
A)Tells delivery person when to stop
B)Call tech when flame fails
C)Signals when air vent is clogged - CORRECT ANSWER>>>>A)Tells delivery person when
to stop
The best way to clear a clogged oil line is to
A)Turn the pump pressure up
B)Use a Co2 cartridge
C)Use a hand pump to suck the dirt out - CORRECT ANSWER>>>>C)Use a hand pump to suck
the dirt out
The vacuum expected on pump can be calculated by 1"hg for every foot of lift and 1" for every
10' run. NOTE: 1/2 for filter
, A) T
B)F - CORRECT ANSWER>>>>A)T
If there is an air leak in the oil suction line to a burner
A)The ignitor will fail
B)The flame may pulse
C)Draft will increase - CORRECT ANSWER>>>>B)The flame may pulse
A fuel de-aerator removes small amounts of sludge from the oil
A)T
B)F - CORRECT ANSWER>>>>B)F - it removes small amounts of air from the oil
Nozzle after-drip can be caused by?
A) Too large a nozzle
B)Dirty Oil
C)Air in the nozzle line >"cracked line" - CORRECT ANSWER>>>>C)Air in the nozzle line
When will a barometric damper open wider?
A)Hot summer day
B)Cold winter day
C)No wind day - CORRECT ANSWER>>>>B)Cold winter day (there is higher draft)
When is a burner "over fired"?
A)When the nozzle gph is too high
B)When the pressure is too high
C)When the stack temperature is too high
D)All - CORRECT ANSWER>>>>D) All
When is a power venter used?
A)To ensure sufficient draft
B) When horizontal venting
C)On every installation - CORRECT ANSWER>>>>A)To ensure sufficient draft
Co2 "red fluid" is good for how many tests?
A)100
B)200
C)300
D)400 - CORRECT ANSWER>>>>B)200
A Co2 test indicates
A)Smoke
B)Complete Combustion
C)Excess Air
D)Carbon Monoxide - CORRECT ANSWER>>>>C)Excess Air
