OIL FURNACE HEATING PRACTICE TESTS 100% ACCURATE.

. Question 1 points Fuel Pump fail to prime when Suction inlet vacuum is greater than _______ of vacuum 20 inches 30 inches 15 inches 25 inches - ANSWER15 inches Which of the following is used to ignite the fuel oil in the heating system: Step down transformer Step up transformer - ANSWERStep up transformer Air enters the heating system in following order: from combustion chamber, to turbulator, to draft tube from draft tube, to turbulator, to combustion chamber from turbulator, to turbulator, to combustion chamber - ANSWERfrom draft tube, to turbulator, to combustion chamber Rotary burners operate with high-pressure gravity False True - ANSWERFalse The spray angle of oil from burner nozzle will generally range from ______: 6