Guide with Complete Questions
and Answers
What is the voltage found at the TT terminals - ANSWER-24 volts
What are the 8 steps of a no heat call - ANSWER-1 talk to customer 2 check
tt.3 check to make sure an emergency switch is on 4check to make sure
there is oil in the tank 5 check to make sure the main power going to the unit
is on six check to make sure that tank shut off valve is open 7 know whether
the tank is located above or below the burner I know the type and style of
the system that is being used on a one or two pipe system
What is a cad cell - ANSWER-A device containing condominium sulfide used
to prove the flame in oil burner furnace
How much air is needed to burn a gallon of number 2 fuel oil and why. -
ANSWER-In 2015 most oil burners are set up to burn with approximately 50%
,excess air because it would be dangerous to set up a burner for exactly the
correct amount of air
What is the term InStep mean - ANSWER-The stack relay is operating
correctly
What is normal pump pressure - ANSWER-100 PSI
Explain interrupted ignition - ANSWER-the ignition Transformer drops out of
the circuit once a flame is established
What are the elements are found in fuel oil number 2 - ANSWER-Carbon
hydrogen oxygen and hydrocarbons
What is a BTU - ANSWER-A British thermal unit is the amount of heat needed
to raise one pound of water 1 degree Fahrenheit
How many BTUs are in one gallon number 2 fuel oil - ANSWER-140,000 BTUs
How is combustion achieved - ANSWER-Atomization, air, ignition.
, What is primary air and secondary air - ANSWER-Primary air, air that is
introduced to a furnace burner before the combustion process has taken
place. secondary air, air that is introduced to the furnace after combustion
has taken place and that supports combustion
How should an oil tank be supported - ANSWER-It shall be secured attached
to a non-combustible supports
What is the wire gauge use an oil burner circuits - ANSWER-14 gauge 15 amp
fuse
How is an oil burner wired - ANSWER-Shall be wired on its own circuit. All
protective control and emergency devices shall be series connected in the
grounded line conductors. all the electrical wiring shall be in accordance with
527 CMR 12.00 Massachusetts electrical code
What size vent pipe is required with a 2 inch fill pipe - ANSWER-A fill pipe
shall not be greater than the vent pipe. The minimum the fill pipe in the state
of Massachusetts is one and one quarter inch.