Oil burner test UPDATED ACTUAL Exam Questions and CORRECT Answers
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Course
Oil burner
Institution
Oil Burner
Oil burner test UPDATED ACTUAL Exam
Questions and CORRECT Answers
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...
Oil burner test UPDATED ACTUAL Exam
Questions and CORRECT Answers
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
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