Questions and Answers (Already
Graded A)
The cross connection between two supply tanks shall not exceed? - ANSWER-
660 gallons
When is an automatic draft control not required? - ANSWER-When the
equipment is designed to control the draft.
Combustion performance testing can indicate: - ANSWER-Improper air oil
mixture, too much combustion air, and low pump pressure.
If a second oil-burning appliance is installed in a single chimney, you must
insure: - ANSWER-Sufficient draft is available for safe operation of all
connected equipment.
Delayed ignition can be caused by: - ANSWER-Weak ignition transformer
, You should replace the oil burner nozzle with: - ANSWER-The manufacturers
recommended nozzle spray pattern and spray angle.
Viscosity problems can be corrected by: - ANSWER-Decreasing the nozzle
size and increasing the pump pressure accordingly
The minimum operating pressure of an oil pump is: - ANSWER-100 PSI
If a stack relay fails you, must? - ANSWER-Replace it with an approved type
controller
Aquastats are normally found on what type of heating systems? - ANSWER-
Hydronic
On a triple acting aquastat a minimum of 20 degrees is recommend between
the high and low limit, this will prevent? - ANSWER-The boiler going off on
high limit before reaching the minimum circulator temperature