Oil burner test Exam Questions and Answers 100% Accurate

Number 2 oil has what btu's - ANSWER-140,000 Which fuel oil has the lowest viscosity - ANSWER-#1 Fuel oil is made up of mostly - ANSWER-Hydrogen/carbon Flash point of #2 fuel oil is - ANSWER-115 degrees Combustion triangle - ANSWER-oxygen, heat, fuel 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