QUESTIONS WITH CORRECT SOLUTIONS!!
The cross connection between two supply tanks shall not exceed? correct answers 660
gallons
When is an automatic draft control not required? correct answers When the equipment is
designed to control the draft.
Combustion performance testing can indicate: correct answers 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: correct
answers Sufficient draft is available for safe operation of all connected equipment.
Delayed ignition can be caused by: correct answers Weak ignition transformer
You should replace the oil burner nozzle with: correct answers The manufacturers
recommended nozzle spray pattern and spray angle.
Viscosity problems can be corrected by: correct answers Decreasing the nozzle size and
increasing the pump pressure accordingly
The minimum operating pressure of an oil pump is: correct answers 100 PSI
If a stack relay fails you, must? correct answers Replace it with an approved type controller
Aquastats are normally found on what type of heating systems? correct answers Hydronic
Airstats are found on what type of heating systems? correct answers Forced warm air systems
Under sized returns on a warm air system can result in what? correct answers Short cycling of
the oil burner
Incorrect nozzle selection in regards to gallon per hour, can result in what problems in a
steam system? correct answers Some radiators not heating quickly enough
Low boiler water temperature in a hydronic hot water system may be caused by? correct
answers Undersized oil burner nozzles
Delayed opening oil valves are used to? correct answers Allow oil pump to come up to speed
If a steam boiler is to be installed with an automatic feeder it must also have: correct answers
A backflow prevention device
How can a damaged heat exchanger be detected on a forced warm air system? correct
answers With a smoke trace candle