Massachusetts Oil Burner Certification Test || With 100% Accurate Solutions

Massachusetts Oil Burner Certification Test || With 100% Accurate Solutions Massachusetts Oil Burner Certification Test || With 100% Accurate Solutions A probe type low-water cut off for steam should be checked - ANSWER - Once a year The proper value for a resistor used to verify the F-F terminals of a Honeywell primary control should be - ANSWER - 1500 ohms Oil tanks can be produced as - ANSWER - Steel, fiberglass, epoxy coated steel Black colored residue on a combustion head tells you - ANSWER - All the above A white material in the flue pipe resembling beach sand is an indicator of - ANSWER - Unit that is under fired Flame quality has no effect on the cad cell - ANSWER - False A material that will easily allow electrons to pass is described as - ANSWER - Conductor The safety ground is required by UL to be colored - ANSWER - Green A solenoid valve operates on the following principle - ANSWER - Electromagnetism What type of meter requires a battery - ANSWER - Ohmmeter The purpose of a limit control is - ANSWER - Safety Switching relays for heating systems can be found in the following switching configurations - ANSWER - SP-ST, DP-ST, DP-DT. All the above Fuel oil contains approximately the following percentages of chemicals - ANSWER - 79% nitrogen and 21% oxygen Mechanical draft is described as - ANSWER - Forced draft As stack temperature goes down the ability of a chimney to produce thermal draft drops - ANSWER - True Oil burners can make CO even when no smoke is present - ANSWER - True The best way to detect CO is - ANSWER - Test for it A yellow spot on test paper may indicate CO - ANSWER - True Adequate breaching draft will always reduce the risk of CO in a structure - ANSWER - True The oil line should always be flushed from the tank all the way through the nozzle - ANSWER - True A fuel oil storage tank cannot be installed: