Oil furnace - Study guides, Class notes & Summaries

Oil furnaces questions and answers 100% pass What is the purpose of the primary controller in an oil furnace? The answer is IT CYCLES THE BURNER. The primary controller is an automatic safety device installed on every oil furnace to shut off the burner if the flame is out. Oil furnaces are like gas furnaces in all of the following respects except A) fan/limit switch. B) blast tube. C) heat exchanger. D) ducts, registers, and grilles. The answer is BLAST TUBE. The blast tube is...

Oil Furnace Heating Practice Tests Questions and Answers Already Passed 1. Question 1 points Fuel Pump fail to prime when Suction inlet vacuum is greater than _______ of vacuum 20 inches 30 inches 15 inches 25 inches 15 inches Which of the following is used to ignite the fuel oil in the heating system: Step down transformer Step up transformer Step up transformer Air enters the heating system in following order: from combustion chamber, to turbulator, to draft tube f...

Oil Furnace Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test

Oil Furnace Heating Practice Tests Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test

What is the BUT input rating of an oiled-fired furnace that uses an nozzle rated at .85 gph? correct answers119,000btu/h What are two problems that can cause an oil-fired gun burner to operate below 100 psig? correct answersa bad oil pump and a plugged in-line filter technician a says that the input voltage of an ignition transformer used on an gun-type oil burner is 208 volts, and the output voltage is 15,000 volts. technician b says that the input voltage of an ignition transformer us...

On a new oil furnace installation, the oil pump pressure is found to be 50 PSI. which of the following actions should be taken? a. Increase the pump pressure. b. Add a new fuel filter. c. Reduce the pump pressure. d. No action needed. correct answersA After installation and 20 min. of run time and oil furnace is found to have CO2 if 8%. which of the following could cause the low CO2 reading? a. Oil pump pressure of 100 psi. b. Misaligned cad cell. c. Excess primary air. d. Dirty c...

MN Boiler License Questions With Complete Solutions Graded A+ a question an answer what are the conditions necessary for good combustion? a) low sulfur content b) Thermal, thermocoupler, tubular c) turbulence, temperature, time 3T's c) turbulence, temperature, time 3T's why is secondary air necessary in hand fired boilers? a) Necessary to burn the combustible gases b) if primary air should fail c) used only if sulfur content is high a) Necessary to burn the combustible gases whe...

You come across an oil furnace that has a tripped primary control. You should A) reset the primary controller and attempt to fire the burner. B) not reset the primary control, and attempt to view the firepot for pooling oil. C) reset the primary control, but do not attempt to fire the burner. D) not reset the primary control, and attempt to view the heat exchanger for pooling oil. - ANSWER-The answer is NOT RESET THE PRIMARY CONTROL, AND ATTEMPT TO VIEW THE FIREPOT FOR POOLING OIL. ...

Oil Furnaces Questions with 100% Correct Answers | Latest Version 2024 | Expert Verified | Ace the Test

What is the heating value of number 2 heating oil? - ANSWER-140,000 Btu/gallon What is the common operating pressure of a high pressure oil boiler? - ANSWER-100 PSIG What is the secondary voltage of the ignition transformer used on a high pressure oil burner? - ANSWER-10,000 volts What is the purpose of an electrode in a high-pressure gun burner? - ANSWER-It is used to carry the spark to the point of ignition what is the measurement of the spark gap on an electrode assembly? - ANSWER...