Oil burner test Questions & Answers
On a warm air furnace, the blower comes off and on in short cycles because Correct Ans-
The fan on/off differential is less than 40°F
What could cause a steam boiler to flood Correct Ans-Leaky tank less coil
Having to put water in a steam boiler once or twice a week is caused by Correct Ans-Weak
return line, radiator vents leaking, boiler sprung a leak
Some radiators on a steam system do not heat up because Correct Ans-The radiator vents
are clogged
On a hot water boiler the pressure is 30psi and the relief valve is open because Correct
Ans-Leaky tankless coil, bad pressure reducing valve, perforated tankless bladder
Some forced hot-water radiators are not heating because Correct Ans-Vent is clogged,
radiators are air bound, radiator valves clogged shut
A cad-cell primary control can lock-out safety because Correct Ans-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
Ans-The thermostat or thermostat wired are no good
In-step means Correct Ans-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 Ans-The reverse is open, circulator motor burnt out,
switching relay is faulty
, Oil burner test Questions & Answers
The burner operates but there is no combustion because Correct Ans-There is too much air
On a replacement steam boiler installation, you should pipe full-size risers to the header. True
or false Correct Ans-False
What is the best way to remove surface oil? Correct Ans-Skimming
Where should the water like normally be in the sight glass when the boiler is off Correct
Ans-Center of the sight glass
What is the purpose of the automatic water feed on a steam boiler Correct Ans-To
maintain a safe minimum water line
What is the purpose of the hartford loop Correct Ans-To prevent siphoning of the boiler
What is the normal cut in pressure of a residential steam boiler Correct Ans-1/2 psi
What is the purpose of an oil safety valve Correct Ans-Prevents oil flow in the event of a
line rupture or excessive line inlet pressure
What does the term "approved" mean Correct Ans-Recognized by a nationally recognized
texting lab
What is a safety control Correct Ans-Any control used to prevent unsafe operation of the
uncontrolled equipment
What is a draft booster Correct Ans-Power operated fan installed in the chimney connector
to increase natural draft
, Oil burner test Questions & Answers
What is a "confined space?" Correct Ans-Any space who's volume is less than 50 cubic feet
per 1000 BTU's of all fuel burning equipment
What is "installation"? Correct Ans-Complete and ready for operation of any oil-burning
appliance
I hat is post purge control Correct Ans-A control that is designed to allow the power vent
or oil burner to operate after flame has been shut off
What is the "power venter" Correct Ans-An electrical device used to produce a negative
draft at the heating appliance
What is the largest exposed tank allowed in a building without a permit Correct Ans-660 g
What is tank approval Correct Ans-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 Ans-True
What is the largest amount of oil that can be stored with exposed tanks? Correct Ans-1320
g
What is the closest distance a supply tank can be to the burner Correct Ans-5 ft
What is the gauge of a 275 g above ground tank Correct Ans-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 Ans-True
On a warm air furnace, the blower comes off and on in short cycles because Correct Ans-
The fan on/off differential is less than 40°F
What could cause a steam boiler to flood Correct Ans-Leaky tank less coil
Having to put water in a steam boiler once or twice a week is caused by Correct Ans-Weak
return line, radiator vents leaking, boiler sprung a leak
Some radiators on a steam system do not heat up because Correct Ans-The radiator vents
are clogged
On a hot water boiler the pressure is 30psi and the relief valve is open because Correct
Ans-Leaky tankless coil, bad pressure reducing valve, perforated tankless bladder
Some forced hot-water radiators are not heating because Correct Ans-Vent is clogged,
radiators are air bound, radiator valves clogged shut
A cad-cell primary control can lock-out safety because Correct Ans-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
Ans-The thermostat or thermostat wired are no good
In-step means Correct Ans-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 Ans-The reverse is open, circulator motor burnt out,
switching relay is faulty
, Oil burner test Questions & Answers
The burner operates but there is no combustion because Correct Ans-There is too much air
On a replacement steam boiler installation, you should pipe full-size risers to the header. True
or false Correct Ans-False
What is the best way to remove surface oil? Correct Ans-Skimming
Where should the water like normally be in the sight glass when the boiler is off Correct
Ans-Center of the sight glass
What is the purpose of the automatic water feed on a steam boiler Correct Ans-To
maintain a safe minimum water line
What is the purpose of the hartford loop Correct Ans-To prevent siphoning of the boiler
What is the normal cut in pressure of a residential steam boiler Correct Ans-1/2 psi
What is the purpose of an oil safety valve Correct Ans-Prevents oil flow in the event of a
line rupture or excessive line inlet pressure
What does the term "approved" mean Correct Ans-Recognized by a nationally recognized
texting lab
What is a safety control Correct Ans-Any control used to prevent unsafe operation of the
uncontrolled equipment
What is a draft booster Correct Ans-Power operated fan installed in the chimney connector
to increase natural draft
, Oil burner test Questions & Answers
What is a "confined space?" Correct Ans-Any space who's volume is less than 50 cubic feet
per 1000 BTU's of all fuel burning equipment
What is "installation"? Correct Ans-Complete and ready for operation of any oil-burning
appliance
I hat is post purge control Correct Ans-A control that is designed to allow the power vent
or oil burner to operate after flame has been shut off
What is the "power venter" Correct Ans-An electrical device used to produce a negative
draft at the heating appliance
What is the largest exposed tank allowed in a building without a permit Correct Ans-660 g
What is tank approval Correct Ans-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 Ans-True
What is the largest amount of oil that can be stored with exposed tanks? Correct Ans-1320
g
What is the closest distance a supply tank can be to the burner Correct Ans-5 ft
What is the gauge of a 275 g above ground tank Correct Ans-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 Ans-True
