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Oil Burners License Test: Comprehensive Preparation Guide, Exams of Oil Engineering

Southern Maine Community CollegeOil Engineering

This comprehensive document covers the essential topics and questions for the oil burners license test. It provides detailed explanations and verified answers to help candidates prepare for the latest 2024 version of the exam. A wide range of subjects, including the primary control function, power supply requirements, motor operations, material properties, combustion processes, safety regulations, piping configurations, ignition systems, and more. By studying this document, candidates can gain a thorough understanding of the key concepts and be well-equipped to pass the oil burners license test with confidence.

Typology: Exams

2023/2024

Available from 08/16/2024

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Oil Burners License Test | 100% Correct
Answers | Verified | Latest 2024 Version
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
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Download Oil Burners License Test: Comprehensive Preparation Guide and more Exams Oil Engineering in PDF only on Docsity!

Oil Burners License Test | 100% Correct

Answers | Verified | Latest 2024 Version

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 L 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, 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

If a high limit is installed to prevent high boiler water temperature what is the function of the low limit - ✔✔To maintain temperature for domestic hot water It is best to connect flue units as a one pipe system instead of a two pipe system because - ✔✔One pipe leads to longer filter life and eliminates leaking return lines The power venter shall be sized in accordance with - ✔✔Maximum input capacity of the appliance Two permanent openings are required for the air supply to a burner located in a confined space according to code. The opening shall be no less than ——— square inches per gallon capacity. - ✔✔ 100 A common cause of delayed ignition is a delayed oil solenoid valve - ✔✔True Of the percentages of CO2 listed which value would be closest to the value that you would expect to see on a boiler operating at 80% efficiency - ✔✔12% What is the purpose of the Hartford loop - ✔✔To prevent siphoning of the water in the boiler All primary control safety shutdowns are caused by no combustion - ✔✔False If a split phase burner motor does not operate after the primary control has been reset and the voltage to the motor is correct you should check the - ✔✔Capacitor Ultra low sulfur fuel has no benefit to a fuel oil system - ✔✔False If a cad cell is sensing light when there is a call for heat the primary control - ✔✔Will lockout on safety When is the automatic draft control not required - ✔✔When the equipment is so designed to control the draft

What is the best way to test an electronic igniter - ✔✔Use a transformer tester to make sure the secondary voltage output from the ignitor springs Pulsating oil pump pressure and a pulsating fire could be caused by - ✔✔Air leaks in suction line What is the best was to remove surface oil - ✔✔Skimming Dirt or lint build up in the bevel of the burner blades will - ✔✔Reduce the amount of combustion air To ensure the best mechanical seal throughout a fuel oil delivery system the following should be used - ✔✔Flared fittings and pipe dope Some radiators on a steam system do not heat up because - ✔✔The radiator vent is clogged What is the minimum size wire that can be used for the line voltage to an oil burner - ✔✔14 gauge The gallons per hour rating on an oil nozzle is based on pressure is - ✔✔100 psig A high limit device installed on a forced air furnace is controlled by - ✔✔Temperature On a residential hydronic heating system the devices used for water expansion is an - ✔✔Expansion tank Sulfric Acid in combustion gases can - ✔✔Create scale buildup in the heat exchanger How many BTUs are in one gallon of No.2 fuel oil - ✔✔140,000 BTUs It is common for the oil burner and blower to come on at the same time on a warm air system - ✔✔False