P-99 / Low Psi Oil Burner Operator Study Guide Rated A+

What device heats the oil further before it enters the burner for combustion? {Ans: Pre-heater.}A white, dazzling flame is an indication of ____. {Ans: Excess air.}What does the stack switch/primary control do? {Ans: Shut down the oil burner due to ignition failure or loss of flame in the combustion chamber.}Which valve stops oil flow so that cleaning and maintenance can be performed? {Ans: Shut-off valve.}Where in an oil pump discharge line shall a relief valve be installed? {Ans: Between the pump and first shut-off valve.}A dangerous condition occurs when oil pumped to the combustion chamber is not properly ____. {Ans: Atomized.}