NORA Oil Heat Exam Review Questions + Answers Rated
100% Correct!!
What is the final adjustment you make when tuning up an oil burner?
A)Draft
B) Change Nozzle
C)Oil Pressure
D)Combustion Air
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
B)Incomplete Combustion
New burners produce "high static pressure"
A)Produce more spark
B)Push flue gases through tighter boilers
C) Get better atomization
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
B)Provides a place for bacteria to grow
Water enters tanks through?
A)Fill caps
B)Vents
C)Delivery truck
D)All
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
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
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
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
B)The flame may pulse
A fuel de-aerator removes small amounts of sludge from the oil
A)T
B)F
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"
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
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
D) All
When is a power venter used?
A)To ensure sufficient draft
B) When horizontal venting
C)On every installation
A)To ensure sufficient draft
Co2 "red fluid" is good for how many tests?
A)100
B)200
C)300
D)400
B)200
A Co2 test indicates
A)Smoke
B)Complete Combustion
C)Excess Air
D)Carbon Monoxide
C)Excess Air
If you measure a 10% Co2 in the breech and a 12% over the fire, there must be an
air leak in the boiler.
A)T
B)F
100% Correct!!
What is the final adjustment you make when tuning up an oil burner?
A)Draft
B) Change Nozzle
C)Oil Pressure
D)Combustion Air
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
B)Incomplete Combustion
New burners produce "high static pressure"
A)Produce more spark
B)Push flue gases through tighter boilers
C) Get better atomization
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
B)Provides a place for bacteria to grow
Water enters tanks through?
A)Fill caps
B)Vents
C)Delivery truck
D)All
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
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
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
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
B)The flame may pulse
A fuel de-aerator removes small amounts of sludge from the oil
A)T
B)F
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"
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
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
D) All
When is a power venter used?
A)To ensure sufficient draft
B) When horizontal venting
C)On every installation
A)To ensure sufficient draft
Co2 "red fluid" is good for how many tests?
A)100
B)200
C)300
D)400
B)200
A Co2 test indicates
A)Smoke
B)Complete Combustion
C)Excess Air
D)Carbon Monoxide
C)Excess Air
If you measure a 10% Co2 in the breech and a 12% over the fire, there must be an
air leak in the boiler.
A)T
B)F
