HVAC Oil burner Exam Questions and Answers (Graded A)

HVAC Oil burner Exam Questions and Answers (Graded A) An up flow furnace - Answer ️️ -Has the return air at the bottom Of the six regular grades of fuel oil,The grade most commonly used in residential and light commercial heating systems is No. - Answer ️️ -2 How much heat is produced when 2 gallons of No. 2 fuel oil is burned? - Answer ️️ -280,000 What could be the cause of a high steak temperature - Answer ️️ -Too much air How would you prove a furnace was stopped up with soot in the heat exchanger - Answer ️️ - Draft gauge at the inspection door What is the function of a heat exchanger - Answer ️️ -To exchange the heat from the combustion What is the function of the combustion chamber - Answer ️️ -Place to burn the fuel What is the purpose of the restrictor in the blast tube - Answer ️️ -To create air Velocity What is the difference between a hollow core and a solid core oil nozzle - Answer ️️ -Oil pattern What is the purpose of the tangential Slots in the nozzle - Answer ️️ -Push the oil in a swirling motion What must be done to oil to prepare it to burn - Answer ️️ -Atomization What would be the result of a solution where a customer reset the primary control many times before the service person arrived - Answer ️️ -too much oil in the combustion chamber, Irrupt What are the symptoms of an oil forced air furnace with a hole in the heat exchanger - Answer ️️ -Soot in the register and odors