Solutions New Update || Graded A+
how should an oil tank be supported - Answer - ✔ Ridgid non-combustible supports to
prevent settling, sliding, or lifting
what is the wire gauge used on oil burner circuits - Answer - ✔ 14 gauge minimum
how is an oil burner wired - Answer - ✔ oil burners are wired intermittent or interrupted
what does intermittent or interrupted mean - Answer - ✔ intermittent - Transformer stays
on throughout the burner firing cycle
interrupted - Transformer drops out after flame established
who approves oil burners in Mass - Answer - ✔ the fire marshal
what does the term Marshall mean - Answer - ✔ State Fire Marshal
what size vent pipe is required with a 2-inch fill pipe - Answer - ✔ 2 inch minimum
what are the elements found in fuel oil - Answer - ✔ 85% carbon
15% hydrogen
what is fuel oil - Answer - ✔ a hydrocarbon
how must fuel oil be prepared for combustion - Answer - ✔ it must be atomized or
vaporized, and mixed with air
What is a BTU (British Thermal Unit)? - Answer - ✔ the amount of heat necessary to
raise 1 lb of water, 1° Fahrenheit
how many BTUs are there in a gallon of number 2 fuel - Answer - ✔ 140000
what determines the GPH of a nozzle - Answer - ✔ the orifice
what is a degree day - Answer - ✔ 65 degrees Fahrenheit minus the daily average
temperature
can materials other than steel be used in fuel oil tanks - Answer - ✔ yes, is approved
, what does the word approved mean - Answer - ✔ accepted by the Marshall, or by a
laboratory, which is by the Marshall
when is a combustion efficiency test required by law - Answer - ✔ after installations and
alterations
what control shuts off the oil burner in the event of excessive heat temperature in the
appliance - Answer - ✔ the high limit
name three functions of an oil pump - Answer - ✔ pick up, pressurize, and strain oil
how is oil flow adjusted in a rotary burner - Answer - ✔ by the constant level valve
how is safety timing checked on a stack switch - Answer - ✔ remove the stack switch
from its holder or disconnect Terminal 3, fire the control and time it's lockout
what is safety lockout timing firing under 3 GPH - Answer - ✔ 45 seconds
how should a stack control be mounted according to code - Answer - ✔ not rigidly
mounted
why should stack switch not be rigidly mounted - Answer - ✔ so it can be easily
removed for cleaning and inspection, without disturbing any wiring
what safety devices are found on a gravity burner - Answer - ✔ a constant level valve,
and a solenoid valve
when is a tank vent pipe required - Answer - ✔ on all tanks
what must be done after an installation has been completed - Answer - ✔ a certificate of
completion must be submitted
where are certificates of completion submitted - Answer - ✔ local fire department
what is the time limit for submitting a certificate of completion - Answer - ✔ 72 hours,
excluding weekends and holidays
what is on a certificate of completion - Answer - ✔ Name of burner
Approval number issued by Marshall
Grade of fuel oil used
Size of tank in gallons
Any special requirements that pertain to the installation
Assurance of compliance with regulations