Exam (elaborations)
Oil Burners license test|71 Questions and answers 2024
Oil Burners license test|71 Questions and answers 2024
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Oil Burners license test|71 Questionsand answers 2024
The main function of the primary control is: - -Locking out on safety in the
event of flame failure
-Power must be provided to an electric blower control board on terminals: -
-L1 and L2
-Once a PSC motor starts - -The centrifugal switch turns off the electricity to
the capacitor and the start windings
-Materials who's electrons are so loosely bound that they can be persuaded
to move with very little pressure allowing electricity to flow are called - -
Conductors
-Oil burners can make CO even when no smoke is present - -True
-Corrosion in the flu pipe may occur if - -Flue gas temperature is below the
dewpoint and sulfur oxide's combine with water
-To avoid condensing and the flu pipe and oil fired appliance should have a
minimum growth stock temperature of - -350°F
-All persons assisting and working under the supervision of a person holding
a certificate as an oil burner technician must hold current apprentice
certificates issued by Department of fire services - -True
-What size pipe is used to cross connect tank outlets piping - -1/2 inch
-Fuel return piping from an appliance shall - -Enter the top of the tank
-Delayed ignition may be caused by - -Unvented pressure regulator
-Installation of oil safety valves and oil pressure reducing valve - -Reduces
the chance of a return line leak
-What is an installation - -Complete and ready for operation of any oil
burning appliance
-Energizing the ignition circuit during the entire burn cycle reduces - -
Ignition component life
, -Fuel can be transferred from a tank to an appliance by pressurizing the
tank - -False
-What device must be equipped with an air proving switch - -Both, draft
inducers and power-venters
-What is a safety control - -Any control used to prevent unsafe operation of
the controlled equipment
-A non-resident steam or hot water boiler having a minimum safety relief
valve capacity over 200,000 BTU/hr requires certificate of inspection from
the department of fire services - -Prior to the initial firing, every 3 years after
-What is the closest distance a supply tank can be to the burner - -5 feet
-Doing a combustion pretest on and oil burning appliance will not tell you
anything this is why they generally are performed - -False
-What is the minimum oil supply line size for a residential system - -3/8 inch
-A cad cell primary control can lock out safety because - -All of the above-
dirty, faulty, not sensing flame
-As heating oil gets colder it's viscosity thickens: - -Increase
-The purpose of the oil burner nozzle is to: - -Atomize, pattern and meter
the oil
-The primary control must be capable of - -All of the above
-A decrease in CO2 with an increase in excess air will give a drop in stack
temperature - -True
-Minimum net stack temperature of above 350°F must be maintained - -To
avoid condensation and maintain draft
-The primary control must be capable of reacting to - -The presence or
absence of flame
-The two principal combustible elements in number two fuel oil are nitrogen
and carbon - -False
-If a stack type controller fails you must - -Replace it with an approved type
controller
-When wiring multiple circulators they should be wired in - -Parallel
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