Oil furnace Questions and Answers 100% Pass

Oil furnace Questions and Answers 100% Pass What is the heating value of a number 2heating oil? 140,000 BTU/gallon What is the common operating pressure of a high-pressure oil burner? 100psig What is the secondary voltage of the ignition transformer used on a high-pressure oil burner? 10,000 volts What is the purpose of an electrode in a high-pressure gas burner? It is used to carry the spark to the point of ignition What is the measurement of the spark gap on an electrode assembly? 1/8" The capacity of a high-pressure oil burner nozzle is rated in GPH ( gallons per hour ) What are the three different spray patterns that are used on a nozzle? Solid, semihollow, and hollow The spray angle of an oil nozzle ranges from 30° to 90° What type of motor is used on a residential high-pressure oil burner? Split phase What is the speed of the burner motor on a high-pressure gun burner? 1,725 or 3,450 rpm What is a common capacity of an indoor oil tank? 275 gallons What is the size of a fill pipe on an oil storage tank? 2" diameter What is the size of an air vent on an oil storage tank? 1 1/4" diameter What safety feature is used on an inside oil storage tank that will protect against a house fire? A fuse-type globe valve What effect, if any, would a decrease of primary air have on combustion? It would increase CO2 percentages What effect, if any, would an increase of primary air have on combustion? It would decrease CO2 percentages If an oil has high viscosity, It is a thicker oil under low temperatures. What type of a system uses a single-stage fuel oil pump? An above ground one-pipe system What type of a system uses a two-stage fuel oil pump? An underground two-pipe system When a cad-cell is located in the light, its resistance is Below 1,500 ohms of resistance When a cad-cell is located in the dark, its resistance is Above 100,000 ohms of resistance The orange wire on a cad-cell relay is used to Feed line voltage to the burner motor The number 3 terminal on the stack mount