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Nora Test Questions And Answers With Verified Solutions Already Passed!!!
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Nora Test Questions And Answers With Verified Solutions Already Passed!!!
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Nora Test Questions And Answers WithVerified Solutions Already Passed!!!
The key final adjustment for most oil burners is - ANSWER✔✔combustion air
The high static air pressure created by todays oil burner - ANSWER✔✔Enable
boiler and furnaces to have tighter more efficient heat
Dirt or lint build-up in the bevel of the burner fan blades will? -
ANSWER✔✔Reduce the amount of combustion air
How do high pressure atomizing oil burners light oil on fire? - ANSWER✔✔They
pressurize the oil to turn it from a liquid to droplets, mix them with air, then heat
the droplets until they vaporize then ignite
To change the air ratio for different firing rates with an adjustable head burner
you? - ANSWER✔✔Adjust the position of the drawer assembly in the Air tube
When burned one gallon of #2 oil releases approximately? - ANSWER✔✔140,000
BTU's
The pour point of #2 oil is? - ANSWER✔✔The lowest temperature at which oil
will flow
Sulfuric acid in combustion gasses can? - ANSWER✔✔Create scale buildup in the
heat exchanger
, Flash point of a fuel is an indication of? - ANSWER✔✔The lowest temperature at
which it will flash but not continue to burn
As heating oil gets colder its viscosity (thickness)? - ANSWER✔✔increases
A tank without a vent alarm - ANSWER✔✔Should not be filled
What is the most common source of water in oil tanks? -
ANSWER✔✔condensation
The home for bacterial growth and sludge in the bottom of the oil tank is? -
ANSWER✔✔water
Pumping the old oil from a tank being replaced into the new tank? -
ANSWER✔✔Is ok as long as you do not pump the last 50 gallons from the tank
bottom
Fuel units (oil pumps) perform the following function? - ANSWER✔✔Move oil
from the tank to the burner and deliver it at a constant regulated pressure to the
nozzle
The best way to clear a clogged oil line is to? - ANSWER✔✔Use a hand pump to
suck the blockage out
If the oil level in the tank is 4 foot below and 10 feet away from the fuel unit and
the filter is new the approximate vacuum should be? - ANSWER✔✔5 to 6 inches
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