OIL BURNER TEST EXAM WITH CORRECT ANSWERS
GRADED A+ #15
What is the largest exposed tank allowed in a building without a permit - correct answer
660 g
What is tank approval - correct answer UL 80 UL 142
A supply tank shall be securely supported by ridged, non-combustible supports to
prevent settling, sliding or lifting. True or false - correct answer True
What is the largest amount of oil that can be stored with exposed tanks? - correct
answer 1320 g
What is the closest distance a supply tank can be to the burner - correct answer 5 ft
What is the gauge of a 275 g above ground tank - correct answer 12 gauge
The maximum amount of fuel may be delivered without a permit to store in effect
provided that application has been made in accordance with code. True or false -
correct answer True
Vent pipe for a 500 g tank should be - correct answer 1 1/4"
A supply tank may be supported by any ridge support. True or false - correct answer
False
Stack switch relays can no longer be used in installations or replacement because -
correct answer Their lock-out time is no longer the code requirement
An oil safety valve should be used when burner pump is lifting oil. True or false - correct
answer False
On a warm air furnace, the blower comes off and on in short cycles because - correct
answer The fan on/off differential is less than 40°F
What could cause a steam boiler to flood - correct answer Leaky tank less coil
Having to put water in a steam boiler once or twice a week is caused by - correct
answer Weak return line, radiator vents leaking, boiler sprung a leak
Some radiators on a steam system do not heat up because - correct answer The
radiator vents are clogged
On a hot water boiler the pressure is 30psi and the relief valve is open because - correct
answer Leaky tankless coil, bad pressure reducing valve, perforated tankless bladder
, Some forced hot-water radiators are not heating because - correct answer Vent is
clogged, radiators are air bound, radiator valves clogged shut
A cad-cell primary control can lock-out safety because - correct answer Cad-cell is dirty,
Cad-cell is faulty, The cad-cell is not sensing flame
On a no heat call, a cad-cell primary control fired when TT is jumped out because -
correct answer The thermostat or thermostat wired are no good
In-step means - correct answer The primary control start circuit is closed
On a no heat call on a hot water system, the oil burner is off on high-limit, but the
circulator is not running because - correct answer The reverse is open, circulator motor
burnt out, switching relay is faulty
The burner operates but there is no combustion because - correct answer There is too
much air
On a replacement steam boiler installation, you should pipe full-size risers to the
header. True or false - correct answer False
What is the best way to remove surface oil? - correct answer Skimming
Where should the water like normally be in the sight glass when the boiler is off - correct
answer Center of the sight glass
What is the purpose of the automatic water feed on a steam boiler - correct answer To
maintain a safe minimum water line
What is the purpose of the hartford loop - correct answer To prevent siphoning of the
boiler
What is the normal cut in pressure of a residential steam boiler - correct answer 1/2 psi
What is the purpose of an oil safety valve - correct answer Prevents oil flow in the event
of a line rupture or excessive line inlet pressure
What does the term "approved" mean - correct answer Recognized by a nationally
recognized texting lab
What is a safety control - correct answer Any control used to prevent unsafe operation
of the uncontrolled equipment
What is a draft booster - correct answer Power operated fan installed in the chimney
connector to increase natural draft
GRADED A+ #15
What is the largest exposed tank allowed in a building without a permit - correct answer
660 g
What is tank approval - correct answer UL 80 UL 142
A supply tank shall be securely supported by ridged, non-combustible supports to
prevent settling, sliding or lifting. True or false - correct answer True
What is the largest amount of oil that can be stored with exposed tanks? - correct
answer 1320 g
What is the closest distance a supply tank can be to the burner - correct answer 5 ft
What is the gauge of a 275 g above ground tank - correct answer 12 gauge
The maximum amount of fuel may be delivered without a permit to store in effect
provided that application has been made in accordance with code. True or false -
correct answer True
Vent pipe for a 500 g tank should be - correct answer 1 1/4"
A supply tank may be supported by any ridge support. True or false - correct answer
False
Stack switch relays can no longer be used in installations or replacement because -
correct answer Their lock-out time is no longer the code requirement
An oil safety valve should be used when burner pump is lifting oil. True or false - correct
answer False
On a warm air furnace, the blower comes off and on in short cycles because - correct
answer The fan on/off differential is less than 40°F
What could cause a steam boiler to flood - correct answer Leaky tank less coil
Having to put water in a steam boiler once or twice a week is caused by - correct
answer Weak return line, radiator vents leaking, boiler sprung a leak
Some radiators on a steam system do not heat up because - correct answer The
radiator vents are clogged
On a hot water boiler the pressure is 30psi and the relief valve is open because - correct
answer Leaky tankless coil, bad pressure reducing valve, perforated tankless bladder
, Some forced hot-water radiators are not heating because - correct answer Vent is
clogged, radiators are air bound, radiator valves clogged shut
A cad-cell primary control can lock-out safety because - correct answer Cad-cell is dirty,
Cad-cell is faulty, The cad-cell is not sensing flame
On a no heat call, a cad-cell primary control fired when TT is jumped out because -
correct answer The thermostat or thermostat wired are no good
In-step means - correct answer The primary control start circuit is closed
On a no heat call on a hot water system, the oil burner is off on high-limit, but the
circulator is not running because - correct answer The reverse is open, circulator motor
burnt out, switching relay is faulty
The burner operates but there is no combustion because - correct answer There is too
much air
On a replacement steam boiler installation, you should pipe full-size risers to the
header. True or false - correct answer False
What is the best way to remove surface oil? - correct answer Skimming
Where should the water like normally be in the sight glass when the boiler is off - correct
answer Center of the sight glass
What is the purpose of the automatic water feed on a steam boiler - correct answer To
maintain a safe minimum water line
What is the purpose of the hartford loop - correct answer To prevent siphoning of the
boiler
What is the normal cut in pressure of a residential steam boiler - correct answer 1/2 psi
What is the purpose of an oil safety valve - correct answer Prevents oil flow in the event
of a line rupture or excessive line inlet pressure
What does the term "approved" mean - correct answer Recognized by a nationally
recognized texting lab
What is a safety control - correct answer Any control used to prevent unsafe operation
of the uncontrolled equipment
What is a draft booster - correct answer Power operated fan installed in the chimney
connector to increase natural draft
