Oil Burner's Test Questions 1-200
with Correct Answers
In an electric circuit for the wattage to remain the same if the voltage drops,
the amperage must - ANSWER-Increase
Atomizing type burners were designed to burn which type of fuel - ANSWER-
Type 2 fuel oil
Pour point problems with outside above ground fuel tanks can be partially
relieved by - ANSWER-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 - ANSWER-In the furnace room
with 5' of heating unit.
The primary purpose of a fuel pump on a high-pressure burner is to -
ANSWER-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 - ANSWER-Plugged fuel filter, Kinked oil
supply line, Check valve sticking
With most new flame retention burners, the motor speed is - ANSWER-3450
To check for proper nozzle line cut-off, the pressure gauge is installed in the -
ANSWER-Nozzle Port
Fuel units are generally set at the factory at - ANSWER-100psi
The oil burner nozzle in a high-pressure burner performs the following
functions - ANSWER-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 -
ANSWER-•Tangential slots
. Swirl chamber
Orifice
,Cold oil or high viscosity problems may be eliminated by - ANSWER-
•Increasing pump pressure and reducing nozzle size
• Installing a nozzle line pre-heater
The most common type of burner design in use today is the - ANSWER-High
pressure atomizing
Poor draft due to a faulty chimney may be improved by installing a good -
ANSWER-•Draft inducer
The pressure differential produced by chimneys is best measured with a
draft gauge in - ANSWER-Inches of water column
The following conditions or elements affect choosing the correct nozzle spray
pattern - ANSWER-•Air-oil mixing design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size? - ANSWER-Fuel Pump
Pressure
, To burn one pound of fuel oil, it takes how many pounds of air? - ANSWER-
•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) - ANSWER-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) -
ANSWER-•Between 80 to 100 square inches
The most important draft measurement to be taken on any oil-fired unit is -
ANSWER-The draft at the breech
The draft over the fire
The proper location to install a draft inducer is - ANSWER-•In the flue pipe
between the draft regulator and the chimney
with Correct Answers
In an electric circuit for the wattage to remain the same if the voltage drops,
the amperage must - ANSWER-Increase
Atomizing type burners were designed to burn which type of fuel - ANSWER-
Type 2 fuel oil
Pour point problems with outside above ground fuel tanks can be partially
relieved by - ANSWER-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 - ANSWER-In the furnace room
with 5' of heating unit.
The primary purpose of a fuel pump on a high-pressure burner is to -
ANSWER-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 - ANSWER-Plugged fuel filter, Kinked oil
supply line, Check valve sticking
With most new flame retention burners, the motor speed is - ANSWER-3450
To check for proper nozzle line cut-off, the pressure gauge is installed in the -
ANSWER-Nozzle Port
Fuel units are generally set at the factory at - ANSWER-100psi
The oil burner nozzle in a high-pressure burner performs the following
functions - ANSWER-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 -
ANSWER-•Tangential slots
. Swirl chamber
Orifice
,Cold oil or high viscosity problems may be eliminated by - ANSWER-
•Increasing pump pressure and reducing nozzle size
• Installing a nozzle line pre-heater
The most common type of burner design in use today is the - ANSWER-High
pressure atomizing
Poor draft due to a faulty chimney may be improved by installing a good -
ANSWER-•Draft inducer
The pressure differential produced by chimneys is best measured with a
draft gauge in - ANSWER-Inches of water column
The following conditions or elements affect choosing the correct nozzle spray
pattern - ANSWER-•Air-oil mixing design of burner
•. Shape of the chamber
Which condition affects nozzle spray droplet size? - ANSWER-Fuel Pump
Pressure
, To burn one pound of fuel oil, it takes how many pounds of air? - ANSWER-
•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) - ANSWER-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) -
ANSWER-•Between 80 to 100 square inches
The most important draft measurement to be taken on any oil-fired unit is -
ANSWER-The draft at the breech
The draft over the fire
The proper location to install a draft inducer is - ANSWER-•In the flue pipe
between the draft regulator and the chimney
