NORA BRONZE EXAM GUIDE
QUESTIONS AND ANSWERS
Using an additive can: - ANSWER -Lower pour and cloud points
Sulfur exists in: - ANSWER -Varying degrees in all fossil fuels
Using ULSD all but eliminates: - ANSWER -Scale and soot formation
Why is heating oil dyed red? - ANSWER -To differentiate it from on-road diesel fuel
What is Bioheat a blend of? - ANSWER -A blend of #2 fuel and B100 Biodiesel
What is combustion? - ANSWER -The rapid reaction of a combustible material with
oxygen, involving the production of heat and light
What three things are required for combustion to take place: - ANSWER -Oxygen, fuel,
heat
What three electrical components does the primary control operate? - ANSWER -The
burner motor, igniter, and oil valve
An oil burner motor is responsible to create the force needed to turn: - ANSWER -The
burner fan and fuel unit
The burner motor drives: - ANSWER -The fan and a fuel unit
The fuel units' function is - ANSWER -Moves fuel from the tank, pressurizes it and
delivers it to the nozzle provide fast and complete cutoff of fuel on burner shutdown
What is primary air? - ANSWER -Air that exists through the center opening.
What is secondary air? - ANSWER -Air that exits through the slots cause the air to spin
enabling the best mix of fuel and air
How many BTU's does one gallon of #2 fuel contain? - ANSWER -139,000
When the viscosity of fuel entering the nozzle increases the_____________ increases: -
ANSWER -The flow rate also increases
Flash point is: - ANSWER -The maximum temp a fuel can be safely stored & handled
without serious fire hazard
, Fire point is: - ANSWER -Ignition point is the lowest temperature at which fuel vapor will
initiate and sustain combustion
Pour point is: - ANSWER -The lowest temperature at which fuel will flow
Cloud point is: - ANSWER -The temperature at which wax crystals begin to form.
What is tertiary air? - ANSWER -Air that exits around the outside of the flame retention
ring and blankets the fuel with air to ensure clean combustion
The difference between fixed and adjustable heads: - ANSWER -Fixed heads are
attached and have a pre-set tertiary air opening, an adjustable head is attached to the
nozzle assembly and is moved to change the tertiary air opening
The key final adjustment for most burners is: - ANSWER -Combustion air
Burner fan blades need to be clean of debris to ensure: - ANSWER -Proper amount of
combustion air is delivered
Dirt or lint build up on fan blades or air inlet will: - ANSWER -Reduce the amount of
combustion air
High static pressure produced by oil burners: - ANSWER -Allow manufacturers to create
tighter heat exchangers for increase deficiency.
High static pressure burners have been developed to: - ANSWER -to push the products
of combustion through the heat exchanger of high efficiency appliances
How far from any open flame or fuel burning appliance must an oil tank be installed? -
ANSWER -5'
Can cast iron fittings be used on oil tank piping? - ANSWER -No
A tank without a functioning vent alarm should: - ANSWER -Not be filled until the vent
alarm is repaired or replaced
Tanks should be kept free of water because: - ANSWER -It leads to corrosion and
provides a home for harmful bacteria
Condensation in outdoor tanks can be reduced by: - ANSWER -Setting it in an
enclosure, painting it a light color.
For normal residential use, what size oil line is recommended? - ANSWER -1/2" O.D.
fuel lines (3/8" I.D.)
Fuel lines that contact concrete or dirt must be: - ANSWER -coated or sleeved in plastic
QUESTIONS AND ANSWERS
Using an additive can: - ANSWER -Lower pour and cloud points
Sulfur exists in: - ANSWER -Varying degrees in all fossil fuels
Using ULSD all but eliminates: - ANSWER -Scale and soot formation
Why is heating oil dyed red? - ANSWER -To differentiate it from on-road diesel fuel
What is Bioheat a blend of? - ANSWER -A blend of #2 fuel and B100 Biodiesel
What is combustion? - ANSWER -The rapid reaction of a combustible material with
oxygen, involving the production of heat and light
What three things are required for combustion to take place: - ANSWER -Oxygen, fuel,
heat
What three electrical components does the primary control operate? - ANSWER -The
burner motor, igniter, and oil valve
An oil burner motor is responsible to create the force needed to turn: - ANSWER -The
burner fan and fuel unit
The burner motor drives: - ANSWER -The fan and a fuel unit
The fuel units' function is - ANSWER -Moves fuel from the tank, pressurizes it and
delivers it to the nozzle provide fast and complete cutoff of fuel on burner shutdown
What is primary air? - ANSWER -Air that exists through the center opening.
What is secondary air? - ANSWER -Air that exits through the slots cause the air to spin
enabling the best mix of fuel and air
How many BTU's does one gallon of #2 fuel contain? - ANSWER -139,000
When the viscosity of fuel entering the nozzle increases the_____________ increases: -
ANSWER -The flow rate also increases
Flash point is: - ANSWER -The maximum temp a fuel can be safely stored & handled
without serious fire hazard
, Fire point is: - ANSWER -Ignition point is the lowest temperature at which fuel vapor will
initiate and sustain combustion
Pour point is: - ANSWER -The lowest temperature at which fuel will flow
Cloud point is: - ANSWER -The temperature at which wax crystals begin to form.
What is tertiary air? - ANSWER -Air that exits around the outside of the flame retention
ring and blankets the fuel with air to ensure clean combustion
The difference between fixed and adjustable heads: - ANSWER -Fixed heads are
attached and have a pre-set tertiary air opening, an adjustable head is attached to the
nozzle assembly and is moved to change the tertiary air opening
The key final adjustment for most burners is: - ANSWER -Combustion air
Burner fan blades need to be clean of debris to ensure: - ANSWER -Proper amount of
combustion air is delivered
Dirt or lint build up on fan blades or air inlet will: - ANSWER -Reduce the amount of
combustion air
High static pressure produced by oil burners: - ANSWER -Allow manufacturers to create
tighter heat exchangers for increase deficiency.
High static pressure burners have been developed to: - ANSWER -to push the products
of combustion through the heat exchanger of high efficiency appliances
How far from any open flame or fuel burning appliance must an oil tank be installed? -
ANSWER -5'
Can cast iron fittings be used on oil tank piping? - ANSWER -No
A tank without a functioning vent alarm should: - ANSWER -Not be filled until the vent
alarm is repaired or replaced
Tanks should be kept free of water because: - ANSWER -It leads to corrosion and
provides a home for harmful bacteria
Condensation in outdoor tanks can be reduced by: - ANSWER -Setting it in an
enclosure, painting it a light color.
For normal residential use, what size oil line is recommended? - ANSWER -1/2" O.D.
fuel lines (3/8" I.D.)
Fuel lines that contact concrete or dirt must be: - ANSWER -coated or sleeved in plastic
