Oil burner test Exam Questions & Answers 100% Correct

vent pipes must be atleast ______ feet above or _______ feet below any window or door. they must also be _____ get away from property line to prevent sewer gas from drifting to neighbors house - ANSWER-3 feet above or 5 feet below door or window. 3 feet from property line To make combustion efficiency test, a whole must be made - ANSWER-In the flue pipe before the draft control What three colors does the NEC allowed to be used for ground wire? - ANSWER-Green, bare of green with yellow stripe Is zero smoke and low CO2 or high 02 reading at the flue pipe and over the fire is an indication of what - ANSWER-Too much air A fan attached to the flu pipe at the exit terminal from the building, to pull the products of combustion out of the heating unit - ANSWER-Power venting Static pressure created by the burner fan, pushes the combustion gases through the heat exchanger and out of the building - ANSWER-Direct venting Expansion tanks are needed, and what type of system - ANSWER-Hot water A direct vented boiler is a positive pressure system, and no chimney is needed - ANSWER-True What are nozzles rated at? - ANSWER-Nozzles are rated in gallons per hour at 100 pounds pressure Zone control valves are controlled by - ANSWER-Thermostats When a nozzle breaks fuel down into tiny droplets to create enough service area for oxygen to better surround droplets - ANSWER-Atomizing