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What does excessive readings in the vacuum gauge
indicate? - ANSWER -
Obstruction in the the suction line, strainer
must be cleaned
What temperature do preheaters further heat the oil to? -
ANSWER -160-180
degrees
When will the main fuel valve shut down the burner? - ANSWER
-When there's
a failure of ignition or
combustion
What is the purpose of the oil return line? - ANSWER -To
circulate oil that hasn't
been atomized back into
storage
, When is the back pressure relief valve necessary? -
ANSWER -When the
pressure in the burner is
too great
What is normal pressure during combustion of no. 6 oil? -
ANSWER -30-50 psi
What is combustion and what is the result? - ANSWER -The
chemical union of oxygen in the air and combustible elements
in oil (hydrogen and carbon). The result is heat energy.
What percent of oil is carbon? - ANSWER -85%
What percent of oil is hydrogen? - ANSWER -14%
Can oil burn? Why or why not? - ANSWER -No it is a liquid
fuel and must be
changed into a gas or vapor
to burn
What process must take place before oil is burned?
- ANSWER -
Vaporization/Atomization
At what pressure is the oil and air mixture delivered to the
nozzle? - ANSWER -