Oil Burner License Exam Newest Exam | Questions And Correct Answers | Already Graded A+ | Verified Answers | Just Released

Oil Burner License Exam Newest Exam | Questions And Correct Answers |
Already Graded A+ | Verified Answers | Just Released

Oil lines that are buried in concrete should: - (CORRECT ANSWER)Be sleeved in non-metallic
pipe



We install oil safety valves and oil pressure reducing valves to: - (CORRECT ANSWER)Reduce
the head pressure at the pump and prevent the tank from siphoning in the event of a suction line
leak



One advantage of a two stage fuel unit on a one pipe system application is: - (CORRECT
ANSWER)There are no advantages



If the vacuum gauge reading is substantially above the calculated reading with the burner
running, the cause could be: - (CORRECT ANSWER)Restriction in supply line



Pulsating oil pump pressure and a pulsating fire could be caused by: - (CORRECT
ANSWER)Air leaks in the suction line



The flow rate stamped on the nozzle is based on what pressure? - (CORRECT ANSWER)100
PSI



Increasing the fuel pump pressure will: - (CORRECT ANSWER)Increase the flow rate



One gallon of #2 oil contains approximately: - (CORRECT ANSWER)140,000 BTU's



Dirt or lint build-up in the bevel of the burner fan blades will: - (CORRECT ANSWER)Reduce
the amount of combustion air



To change the air ratio for different firing rates with an adjustable head burner, you: -
(CORRECT ANSWER)Adjust the position of the drawer assembly in the air tube




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,One advantage of high static pressure burners is: - (CORRECT ANSWER)They enable boiler
and furnace manufacturers to design more efficient heat exchangers



The key final adjustment for most oil burners is: - (CORRECT ANSWER)Combustion air



All petroleum products are chemical compounds of: - (CORRECT ANSWER)Carbon and
hydrogen



To ensure clean, uncontaminated fuel reaches the oil burner: - (CORRECT ANSWER)- Install
tanks properly

- Regularly inspect them and fix minor defects before they lead to major problems

- Install a quality oil filter



Water in oil tanks come from: - (CORRECT ANSWER)- Condensation

- On outside tanks-broken tank gauges, loose or missing fill and vent caps

- Failing to drain water from a tank before installation



When installing a tank be sure: - (CORRECT ANSWER)- The fill and vent lines are pitched
downwards towards the tank

- To install a vent alarm and a tank gauge

- To install an oil filter and a fusible valve where required



Oil lines buried in concrete should be: - (CORRECT ANSWER)Sleeved in plastic or PVC pipe
with no fittings below the floor



The purpose of fuel units (oil pumps) is: - (CORRECT ANSWER)- Lift oil from the tank to the
burner

- Prevent contaminants that passed the external oil filter from clogging the nozzle


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, - Deliver oil at a constant and regulated pressure to the nozzle



True or False:

When replacing the nozzle to increase the spray pattern the electrodes must be adjusted -
(CORRECT ANSWER)False



The fusible link melts at what temperature? - (CORRECT ANSWER)165



When checking for fuel line leaks: - (CORRECT ANSWER)Vacuum check first



True or False:

When the thermostat calls for heat, the burner and blower start at the same time? - (CORRECT
ANSWER)False



Boiler water limit control indicates? - (CORRECT ANSWER)Pressure and Temperature



A siphon is used to prevent _________ from entering the control? - (CORRECT
ANSWER)Steam



The flow of natural chimney draft is caused by? - (CORRECT ANSWER)Negative pressure



True or False:

Power venters should be installed closest to the exterior wall? - (CORRECT ANSWER)True



Unconfined space - (CORRECT ANSWER)Total BTU's Div 1000 x 50




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