Exam (elaborations)
Oil burner test/162 Questions & Answers
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- Oil Burner Test/162 Questions & Answers
Oil burner test/162 Questions & Answers
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Oil burner test/162 Questions & AnswersWhat is the largest exposed tank allowed in a building without a permit - -
660 g
-What is tank approval - -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 - -True
-What is the largest amount of oil that can be stored with exposed tanks? - -
1320 g
-What is the closest distance a supply tank can be to the burner - -5 ft
-What is the gauge of a 275 g above ground tank - -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 - -True
-Vent pipe for a 500 g tank should be - -1 1/4"
-A supply tank may be supported by any ridge support. true or false - -False
-Stack switch relays can no longer be used in installations or replacement
because - -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 - -False
-On a warm air furnace, the blower comes off and on in short cycles because
- -The fan on/off differential is less than 40°F
-What could cause a steam boiler to flood - -Leaky tank less coil
-Having to put water in a steam boiler once or twice a week is caused by - -
Weak return line, radiator vents leaking, boiler sprung a leak
-Some radiators on a steam system do not heat up because - -The radiator
vents are clogged
-On a hot water boiler the pressure is 30psi and the relief valve is open
because - -Leaky tankless coil, bad pressure reducing valve, perforated
tankless bladder
, -Some forced hot-water radiators are not heating because - -Vent is
clogged, radiators are air bound, radiator valves clogged shut
-A cad-cell primary control can lock-out safety because - -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 - -The thermostat or thermostat wired are no good
-In-step means - -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 - -The reverse is open, circulator
motor burnt out, switching relay is faulty
-The burner operates but there is no combustion because - -There is too
much air
-On a replacement steam boiler installation, you should pipe full-size risers
to the header. True or false - -False
-What is the best way to remove surface oil? - -Skimming
-Where should the water like normally be in the sight glass when the boiler
is off - -Center of the sight glass
-What is the purpose of the automatic water feed on a steam boiler - -To
maintain a safe minimum water line
-What is the purpose of the hartford loop - -To prevent siphoning of the
boiler
-What is the normal cut in pressure of a residential steam boiler - -1/2 psi
-What is the purpose of an oil safety valve - -Prevents oil flow in the event
of a line rupture or excessive line inlet pressure
-What does the term "approved" mean - -Recognized by a nationally
recognized texting lab
-What is a safety control - -Any control used to prevent unsafe operation of
the uncontrolled equipment
-What is a draft booster - -Power operated fan installed in the chimney
connector to increase natural draft
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