oil burner license exam and practice exam newest a
Geschreven voor
OIL BURNER LICENSE
Alle documenten voor dit vak (174)
Verkoper
Volgen
phinta004
Ontvangen beoordelingen
Voorbeeld van de inhoud
OIL BURNER LICENSE EXAM AND PRACTICE
EXAM NEWEST ACTUAL EXAM COMPLETE 250
QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) |ALREADY GRADED A+
What is the first thing a tech should do when arriving at a no combustion call? -
ANSWER Ask how many times the customer reset the unit.
What is the best long term solution for preventing a clogged nozzle? - ANSWER -
Remove any underground storage tanks.
-Install a quality oil filter.
-Cut the suction line 10" above the tank outlet to prevent sludge.
Hot water and steam valves are interchangeable. - ANSWER False
When in the presence of a flame, a cad cell normally reads.. - ANSWER 300-1000
ohms
If a pump is used to bring oil to a level higher than the tank, an oil safety valve is
required. - ANSWER True
On a call where a hydronic heat system is putting out too much heat on the stack, the
issue may be.. - ANSWER -Too much draft.
-Not enough combustion air in the equipment room.
-Air leakage into chamber.
A high CO2 reading is caused by.. - ANSWER Incomplete combustion
An often overlooked cause of a high CO2 reading is.. - ANSWER Not enough
combustion air in the equipment room.
When multiple pumps are wired together in a heating system, they should be wired in.. -
ANSWER parallel
In a series circuit.. - ANSWER Current has one path.
When 2 burners are connected to the same chimney.. - ANSWER Sufficient draft must
be obtained to operate both units.
The ignition transformer is located.. - ANSWER In the primary control.
,When safeties are wired in series one safety will affect the operation of the others. -
ANSWER True
A stack switch is no longer allowed to be installed or replaced because.. - ANSWER It's
safety cutout time is higher than what is now required.
What is a power venter and what does it do? - ANSWER An electrical device that sends
fluid gases into the chimney connector.
A burner in a confined space using 1 GPH of #2 fuel oil requires what size permanent
opening for combustion air? - ANSWER 140"
The difference between an adjustable flame retention burner and a fixed flame retention
burner is? - ANSWER Air inlets can be adjusted
Ignitor position can be adjusted
Fuel can be adjusted
Oil tank design, construction, installation and testing shall be in accordance with.. -
ANSWER 527 CMR 9.0
Heat is a form of.. - ANSWER Energy
If a burner is operational but the circulator pump isn't running.. - ANSWER The pump
relay is not working correctly
A method of dealing with low viscosity/cold temps with #2 oil? - ANSWER Increase
pump pressure/ decrease nozzle size
What is needed at the outlet of an oil tank? - ANSWER Thermal safety valve
Where do you obtain an installation permit for oil burners? - ANSWER Fire Dept
How many Btu's approximately in 1 gal of #2 fuel oil? - ANSWER 140,000 btu's
Solid state ignition is superior to spark because - ANSWER It is not affected by reduced
voltage
What is an installation? - ANSWER The complete setting in place, ready for operation,
of an oil burner appliance together with its accessories and equipment.
How far must a power vent terminate from an opening or window? - ANSWER 4'
A pump in a one pipe system that is full of air can be self purged. - ANSWER False
, List the minimum size of an oil supply line. - ANSWER 3/8"
A material with electrons so loose it allows voltage to pass with little or no resistance.. -
ANSWER Is a conductor
If a high limit goes off, what does a low water switch do? - ANSWER Maintains water
temperature
What is flashpoint an indicator of? - ANSWER Minimum temperature oil will ignite but
not continue to burn.
What travels on the inside of the wire? - ANSWER Volts
What does readily accessible mean pertaining to oil burning equipment? - ANSWER
Capable of being reached easily and quickly for operation, maintenance or inspection.
What is the minimum vent pipe on an oil tank? - ANSWER 1 1/4"
What causes corrosion on a flue pipe? - ANSWER When the flue pipe is operating
below the dew point temperature.
What are the methods to prevent oil waxing? - ANSWER Put additives in the fuel.
Add an oil line heater.
Cut with #1 fuel or kerosene.
What is the maximum tank size allowed inside unenclosed? - ANSWER 660 gal
What is the purpose of a delayed oil valve? - ANSWER Allows time for the oil pump to
get up to speed.
Delays oil flow to the nozzle.
On a call where a hydronic heat system is putting out too much heat, the issue could
be? - ANSWER A shorted out thermostat.
When measuring a cad cell with the burner running and the ff terminals jumped out,
what should the cad cell reading be? - ANSWER 1600 ohms
What are the possible causes of soot at or near the power venter? - ANSWER
Incomplete combustion
What is a possible side effect of air in a nozzle line? - ANSWER Soot
What is the cause if the cad cell is tripped on safety? - ANSWER Dirty cad cell
Voordelen van het kopen van samenvattingen bij Stuvia op een rij:
Verzekerd van kwaliteit door reviews
Stuvia-klanten hebben meer dan 700.000 samenvattingen beoordeeld. Zo weet je zeker dat je de beste documenten koopt!
Snel en makkelijk kopen
Je betaalt supersnel en eenmalig met iDeal, creditcard of Stuvia-tegoed voor de samenvatting. Zonder lidmaatschap.
Focus op de essentie
Samenvattingen worden geschreven voor en door anderen. Daarom zijn de samenvattingen altijd betrouwbaar en actueel. Zo kom je snel tot de kern!
Veelgestelde vragen
Wat krijg ik als ik dit document koop?
Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.
Tevredenheidsgarantie: hoe werkt dat?
Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.
Van wie koop ik deze samenvatting?
Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper phinta004. Stuvia faciliteert de betaling aan de verkoper.
Zit ik meteen vast aan een abonnement?
Nee, je koopt alleen deze samenvatting voor €17,79. Je zit daarna nergens aan vast.
