Oil Burner's Test Questions 1-200 (Answered) Correctly To
Score A+
In an electric circuit for the wattage to remain the same if the voltage drops, the
amperage must
Increase
Atomizing type burners were designed to burn which type of fuel
Type 2 fuel oil
Pour point problems with outside above ground fuel tanks can be partially
relieved by
Reducing the pour point of No. 2 fuel oil by blending it with No. 1 fuel oil.
A fuel oil storage tank cannot be installed
In the furnace room with 5' of heating unit.
The primary purpose of a fuel pump on a high-pressure burner is to
Deliver oil at a constant and regulated pressure to the nozzle
If the vacuum reading is substantially above the calculated reading, (with the
burner running) the cause may be
Plugged fuel filter, Kinked oil supply line, Check valve sticking
With most new flame retention burners, the motor speed is
3450
To check for proper nozzle line cut-off, the pressure gauge is installed in the
Nozzle Port
Fuel units are generally set at the factory at
100psi
The oil burner nozzle in a high-pressure burner performs the following functions
Atomizes the oil
Provides a pattern of oil spray
Delivers a fixed amount of oil
The nozzle flow rate, spray angle and pattern are directly related to
•Tangential slots
. Swirl chamber
Orifice
Cold oil or high viscosity problems may be eliminated by
•Increasing pump pressure and reducing nozzle size
• Installing a nozzle line pre-heater
The following conditions or elements affect choosing the correct nozzle spray
pattern
•Air-oil mixing design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size?
Fuel Pump Pressure
To burn one pound of fuel oil, it takes how many pounds of air?
•14.4 lbs.
A layer of soot 1/16" thick will increase fuel consumption by (Fuel consumption
increase by 2 % for each 1/32 of soot)
, 8%
When sizing a combustion chamber for a firing rate of 1.00 gph you should
provide a minimum floor space of (•20 square inches per 0.25 of GPH)
•Between 80 to 100 square inches
The most common type of burner design in use today is the
High pressure atomizing
Poor draft due to a faulty chimney may be improved by installing a good
•Draft inducer
The pressure differential produced by chimneys is best measured with a draft
gauge in
Inches of water column
The most important draft measurement to be taken on any oil-fired unit is
The draft at the breech
The draft over the fire
The proper location to install a draft inducer is
•In the flue pipe between the draft regulator and the chimney
Using combustion test instruments to measure the composition and temperature
of the flue gas as they leave the heating unit will indicate the
Steady state efficiency
The holes that are provided in the flue pipe for combustion testing must be
•Between the heating unit and the draft regulator
When using a pump type smoke tester, ten full strokes are necessary to
•Draw the proper amount of flue gas past the paper
The fluid in a CO2 tester is good for about how many tests?
For about 400 tests
When applying current through a conductor that is wound in coil, the magnetic
lines of force created are used in
•Solenoid valve
. Relay
.Electric Motor
If in an average 15-amp residential heating circuit, the fuse occasionally blows,
you should
Install a 15-amp breaker
To determine the "electrical potential" available at any given point in a circuit you
should use a:
Voltmeter
Oil burner ignition systems normally operate at what primary voltage
120 volts
Oil burner ignition transformers operate at what secondary voltage range
10,000 to 14,000
In which type of system does the ignition transformer stay on for the full time the
burner is running?
•Intermittent
•b. Constant
A typical ignition transformer is of what type?
step up
Score A+
In an electric circuit for the wattage to remain the same if the voltage drops, the
amperage must
Increase
Atomizing type burners were designed to burn which type of fuel
Type 2 fuel oil
Pour point problems with outside above ground fuel tanks can be partially
relieved by
Reducing the pour point of No. 2 fuel oil by blending it with No. 1 fuel oil.
A fuel oil storage tank cannot be installed
In the furnace room with 5' of heating unit.
The primary purpose of a fuel pump on a high-pressure burner is to
Deliver oil at a constant and regulated pressure to the nozzle
If the vacuum reading is substantially above the calculated reading, (with the
burner running) the cause may be
Plugged fuel filter, Kinked oil supply line, Check valve sticking
With most new flame retention burners, the motor speed is
3450
To check for proper nozzle line cut-off, the pressure gauge is installed in the
Nozzle Port
Fuel units are generally set at the factory at
100psi
The oil burner nozzle in a high-pressure burner performs the following functions
Atomizes the oil
Provides a pattern of oil spray
Delivers a fixed amount of oil
The nozzle flow rate, spray angle and pattern are directly related to
•Tangential slots
. Swirl chamber
Orifice
Cold oil or high viscosity problems may be eliminated by
•Increasing pump pressure and reducing nozzle size
• Installing a nozzle line pre-heater
The following conditions or elements affect choosing the correct nozzle spray
pattern
•Air-oil mixing design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size?
Fuel Pump Pressure
To burn one pound of fuel oil, it takes how many pounds of air?
•14.4 lbs.
A layer of soot 1/16" thick will increase fuel consumption by (Fuel consumption
increase by 2 % for each 1/32 of soot)
, 8%
When sizing a combustion chamber for a firing rate of 1.00 gph you should
provide a minimum floor space of (•20 square inches per 0.25 of GPH)
•Between 80 to 100 square inches
The most common type of burner design in use today is the
High pressure atomizing
Poor draft due to a faulty chimney may be improved by installing a good
•Draft inducer
The pressure differential produced by chimneys is best measured with a draft
gauge in
Inches of water column
The most important draft measurement to be taken on any oil-fired unit is
The draft at the breech
The draft over the fire
The proper location to install a draft inducer is
•In the flue pipe between the draft regulator and the chimney
Using combustion test instruments to measure the composition and temperature
of the flue gas as they leave the heating unit will indicate the
Steady state efficiency
The holes that are provided in the flue pipe for combustion testing must be
•Between the heating unit and the draft regulator
When using a pump type smoke tester, ten full strokes are necessary to
•Draw the proper amount of flue gas past the paper
The fluid in a CO2 tester is good for about how many tests?
For about 400 tests
When applying current through a conductor that is wound in coil, the magnetic
lines of force created are used in
•Solenoid valve
. Relay
.Electric Motor
If in an average 15-amp residential heating circuit, the fuse occasionally blows,
you should
Install a 15-amp breaker
To determine the "electrical potential" available at any given point in a circuit you
should use a:
Voltmeter
Oil burner ignition systems normally operate at what primary voltage
120 volts
Oil burner ignition transformers operate at what secondary voltage range
10,000 to 14,000
In which type of system does the ignition transformer stay on for the full time the
burner is running?
•Intermittent
•b. Constant
A typical ignition transformer is of what type?
step up
