P99 LOW PRESSURE BOILERS CORE MANUAL UPDATED
EXAM QUESTIONS AND ANSWERS GRADED A+
✔✔The stack switch is the - ✔✔Primary control
✔✔The aquastat - ✔✔Operates the oil burner for domestic hot water needs
✔✔The photoelectric cell is a - ✔✔Flame detection control
✔✔The vaporstat is - ✔✔A low pressure; pressure control mounted on the fan housing
and will shut down the burner if no air for combustion exists
✔✔The main fuel valve - ✔✔A valve that will open or close the line leading to the
automizer of the fuel burner
✔✔The oil preheater - ✔✔Raises the temperature of the oil for easier pumping and
atomization
✔✔ The fill line in an oil burner system is a line used to - ✔✔Fill the storage tank with oil
✔✔The aquastat is located - ✔✔Below the water line
✔✔The oil storage tank - ✔✔Provides the supply of oil for combustion in the oil burner
✔✔The temperature in the storage tank for # 6 oil is - ✔✔100 and 130 degrees
Fahrenheit
✔✔A suction cup - ✔✔Circulates the oil throughout the system
✔✔The oil strainer removes the contaminants - ✔✔From the oil before the oil reaches
the burner
✔✔The vacuum gauge is a device that - ✔✔Measures the pressure below atmospheric
pressure
✔✔Excessive vacuum readings indicate that there - ✔✔Is an obstruction in the suction
line (such as a dirty oil strainer)
✔✔Preheaters are used to heat the oil - ✔✔Before the oil enters the burner for
combustion
✔✔The oil is heated between - ✔✔160 and 180 Fahrenheit
✔✔The normal normal oil pressure for no. 6 oil burner is - ✔✔Between 30 and 50 psi
EXAM QUESTIONS AND ANSWERS GRADED A+
✔✔The stack switch is the - ✔✔Primary control
✔✔The aquastat - ✔✔Operates the oil burner for domestic hot water needs
✔✔The photoelectric cell is a - ✔✔Flame detection control
✔✔The vaporstat is - ✔✔A low pressure; pressure control mounted on the fan housing
and will shut down the burner if no air for combustion exists
✔✔The main fuel valve - ✔✔A valve that will open or close the line leading to the
automizer of the fuel burner
✔✔The oil preheater - ✔✔Raises the temperature of the oil for easier pumping and
atomization
✔✔ The fill line in an oil burner system is a line used to - ✔✔Fill the storage tank with oil
✔✔The aquastat is located - ✔✔Below the water line
✔✔The oil storage tank - ✔✔Provides the supply of oil for combustion in the oil burner
✔✔The temperature in the storage tank for # 6 oil is - ✔✔100 and 130 degrees
Fahrenheit
✔✔A suction cup - ✔✔Circulates the oil throughout the system
✔✔The oil strainer removes the contaminants - ✔✔From the oil before the oil reaches
the burner
✔✔The vacuum gauge is a device that - ✔✔Measures the pressure below atmospheric
pressure
✔✔Excessive vacuum readings indicate that there - ✔✔Is an obstruction in the suction
line (such as a dirty oil strainer)
✔✔Preheaters are used to heat the oil - ✔✔Before the oil enters the burner for
combustion
✔✔The oil is heated between - ✔✔160 and 180 Fahrenheit
✔✔The normal normal oil pressure for no. 6 oil burner is - ✔✔Between 30 and 50 psi
