MA Oil Burners State Licensing Test || Questions & Solutions (Graded A+)

MA Oil Burners State Licensing Test || Questions & Solutions (Graded A+) MA Oil Burners State Licensing Test || Questions & Solutions (Graded A+) when is a combustion efficiency test required by law - ANSWER - after installations and alterations what control shuts off the oil burner in the event of excessive heat temperature in the appliance - ANSWER - the high limit name three functions of an oil pump - ANSWER - pick up, pressurize, and strain oil how is oil flow adjusted in a rotary burner - ANSWER - by the constant level valve how is safety timing checked on a stack switch - ANSWER - remove the stack switch from its holder or disconnect Terminal 3, fire the control and time it's lockout what is safety lockout timing firing under 3 GPH - ANSWER - 45 seconds how should a stack control be mounted according to code - ANSWER - not rigidly mounted why should stack switch not be rigidly mounted - ANSWER - so it can be easily removed for cleaning and inspection, without disturbing any wiring what safety devices are found on a gravity burner - ANSWER - a constant level valve, and a solenoid valve when is a tank vent pipe required - ANSWER - on all tanks what must be done after an installation has been completed - ANSWER - a certificate of completion must be submitted where are certificates of completion submitted - ANSWER - local fire department what is the time limit for submitting a certificate of completion - ANSWER - 72 hours, excluding weekends and holidays what is on a certificate of completion - ANSWER - Name of burner Approval number issued by Marshall Grade of fuel oil used Size of tank in gallons Any special requirements that pertain to the installation Assurance of compliance with regulations Assurance that proper maintenance instructions have been left with the owner or occupant Name and address of the owner or occupant of the premises where the installation or alteration was made Results of combustion efficiency test and nozzle size how should an oil tank be supported - ANSWER - Ridgid non-combustible supports to prevent settling, sliding, or lifting what is the wire gauge used on oil burner circuits