Journeyman Oil Exam Questions and Answers | Verified & Updated| 100% Correct

Journeyman Oil Exam Questions and Answers | Verified & Updated| 100% Correct The use of furnace cement or other materials to seal a cracked heat exchanger or parts which provide closure shall be for _________ repairs only. - Answer ️️ -Temporary repairs If a fuel storage tank is permanently removed from service for whatever reason, the tank and all the piping connected to it, including the outside fill and vent piping and any supply piping connected to the appliance, shall be: - Answer ️️ --Emptied of all liquid contents and sludge. -Cleaned and rendered free of combustible vapors. -Removed from premises or property. -Properly disposed of in accordance with all applicable local, state, and federal rules and regulations. What is an indicator that you may have a plugged fuel filter? - Answer ️️ --High vacuum on the oil line. -Tripped control. What is the normal fuel pressure delivered to the nozzle? - Answer ️️ --Older burners = 100psi -Newer burners= 140psi Oil lines need about ______ to ______ Hg of vacuum for each foot we lift of oil. _____ inch of vacuum for each 10 feet of horizontal run and ______ inch for a clean oil filter. - Answer ️️ - .75' to 1" Hg for each foot of lifted oil. 1" of vacuum for each 10 feet of horizontal run. 1/2" of vacuum for a clean oil filter. To calculate the vacuum, figure about ____ of vacuum for each foot of oil lift, _____ of vacuum for each _____ feet of horizontal run, and ______ for a clean oil filter. - Answer ️️ -1" inch 1" inch 10' feet 1/2" inch What is the calculated vacuum for a two stage pump operating with 7ft of lift and 30ft of horizontal offset? - Answer ️️ -10.5 Hg What is the radius of a pipe? - Answer ️️ -Half the diameter. What is the diameter of a pipe? - Answer ️️ -Distance across the the pipe. What is the circumference of a pipe? - Answer ️️ -Diameter x PI The technician may install the branch circuit overcurrent device, provided a space in the electrical panel is available. The technician may also install the associated low voltage wiring provided its power supply is fed from the heating branch circuit. True/False? - Answer ️️ -Ture Warm air ducts can have a heat loss as great as? - Answer ️️ -40% Direct vent heating units less than 50,000 BTU's may be vented _______ from a window. - Answer ️️ -9" inche