1|Page
NORA Bronze Test Questions and
Answers 100% Pass
what are the 3 basic parts of combustion? - ✔✔fuel, heat, air
high pressure oil forced through a nozzle does what? - ✔✔atomizes the oil, mixes the droplets with air,
allows oil to burn
modern flame retention head burner motors operate at what speed - ✔✔3450 rpm
dirt or lint buildup in the bevel of the burner motor fan blades will cause what? - ✔✔reduce the amount
of combustion air
what are the two types of burner motors? - ✔✔split phase and permanent split capacitor
what are the three basic parts of the fuel pump? - ✔✔strainer, gear set, regulating valve
the ignition transformer or igniter is one of the basic needs for what? - ✔✔combustion
the final key adjustment for most oil burners is what? - ✔✔combustion air
To change the air ratio for different firing rates with an adjustable head burner, what do we adjust -
✔✔the position of the drawer assembly in the air tube
one advantage to high static pressure burners is what? - ✔✔more efficient heat exchangers (higher
efficiency)
All petroleum based products are based chemically on what elements? - ✔✔hydrogen and carbon
one gallon of heating oil contains how many BTU's? - ✔✔140,000
Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE
, 2|Page
A BTU is a measure of ______. - ✔✔heat
flash point is what? - ✔✔lowest temp at which fuel will flash but not continue to burn
ignition point is what? - ✔✔lowest temp at which rapid combustion of the fuel will take place in the air
pour point #2 oil is what? - ✔✔lowest temp at which oil will flow
as oil gets colder does the viscosity increase or decrease? - ✔✔increases
water in the bottom of the tank will lead to what two things? - ✔✔sludge and ice
sludge is a combination of what three things? - ✔✔water, bacteria, degraded fuel and other contaminants
sulfur in fuel creates sulfuric acid in condensed flue gasses, what are the three most common adverse
effects on this? - ✔✔damages the flue liner, eats holes in the flue pipe, creates scale buildup in the heat
exchanger
to insure clean, uncontaminated fuel reaches the oil burner. what three things should we do? - ✔✔install
tank properly, regularly inspect and fix minor defects before they lead to major problems, install a quality
oil filter
what are the two common types of oil filters? - ✔✔cartridge, spin-on
oil filters fail when they become covered and blanketed with what? - ✔✔biologically active slime/sludge
the pour point of #2 oil can be lowered by what two methods? - ✔✔kerosene and fuel additives
what provides a home for bacterial growth at the bottom of an oil tank - ✔✔water
where does the bacteria live in an oil tank and what does it do? - ✔✔lives in oil/water lines. eats oil and
craps acid
Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE
NORA Bronze Test Questions and
Answers 100% Pass
what are the 3 basic parts of combustion? - ✔✔fuel, heat, air
high pressure oil forced through a nozzle does what? - ✔✔atomizes the oil, mixes the droplets with air,
allows oil to burn
modern flame retention head burner motors operate at what speed - ✔✔3450 rpm
dirt or lint buildup in the bevel of the burner motor fan blades will cause what? - ✔✔reduce the amount
of combustion air
what are the two types of burner motors? - ✔✔split phase and permanent split capacitor
what are the three basic parts of the fuel pump? - ✔✔strainer, gear set, regulating valve
the ignition transformer or igniter is one of the basic needs for what? - ✔✔combustion
the final key adjustment for most oil burners is what? - ✔✔combustion air
To change the air ratio for different firing rates with an adjustable head burner, what do we adjust -
✔✔the position of the drawer assembly in the air tube
one advantage to high static pressure burners is what? - ✔✔more efficient heat exchangers (higher
efficiency)
All petroleum based products are based chemically on what elements? - ✔✔hydrogen and carbon
one gallon of heating oil contains how many BTU's? - ✔✔140,000
Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE
, 2|Page
A BTU is a measure of ______. - ✔✔heat
flash point is what? - ✔✔lowest temp at which fuel will flash but not continue to burn
ignition point is what? - ✔✔lowest temp at which rapid combustion of the fuel will take place in the air
pour point #2 oil is what? - ✔✔lowest temp at which oil will flow
as oil gets colder does the viscosity increase or decrease? - ✔✔increases
water in the bottom of the tank will lead to what two things? - ✔✔sludge and ice
sludge is a combination of what three things? - ✔✔water, bacteria, degraded fuel and other contaminants
sulfur in fuel creates sulfuric acid in condensed flue gasses, what are the three most common adverse
effects on this? - ✔✔damages the flue liner, eats holes in the flue pipe, creates scale buildup in the heat
exchanger
to insure clean, uncontaminated fuel reaches the oil burner. what three things should we do? - ✔✔install
tank properly, regularly inspect and fix minor defects before they lead to major problems, install a quality
oil filter
what are the two common types of oil filters? - ✔✔cartridge, spin-on
oil filters fail when they become covered and blanketed with what? - ✔✔biologically active slime/sludge
the pour point of #2 oil can be lowered by what two methods? - ✔✔kerosene and fuel additives
what provides a home for bacterial growth at the bottom of an oil tank - ✔✔water
where does the bacteria live in an oil tank and what does it do? - ✔✔lives in oil/water lines. eats oil and
craps acid
Created by Katelyn Whitman © 2025, All Rights Reserved. 100% PASS GUARANTEE
