What does afue stand for Study guides, Class notes & Summaries

NATE Gas Heating Exam with Complete Solutions 100% Verified Graded A+ In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. a. gas valve b. heat exchanger c. inducer fan d. plenum box - Correct Answer b (heat exchanger) What type of furnace moves warm air through the conditioned space without a fan? a. Gravity b. Horizontal c. Lowboy d. Upflow - Correct Answer a (Gravity) Furnace heat exchangers generally are made of ______. ...

b (heat exchanger) - Answer In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. a. gas valve b. heat exchanger c. inducer fan d. plenum box a (Gravity) - Answer What type of furnace moves warm air through the conditioned space without a fan? a. Gravity b. Horizontal c. Lowboy d. Upflow d (steel) - Answer Furnace heat exchangers generally are made of ______. a. ceramic b. copper c. plastic d. steel b (Annual Fuel...

B (heat exchanger) Correct Answer In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. A. Gas valve B. Heat exchanger C. Inducer fan D. Plenum box A (Gravity) Correct Answer What type of furnace moves warm air through the conditioned space without a fan? A. Gravity B. Horizontal C. Lowboy D. Upflow D (steel) Correct Answer Furnace heat exchangers generally are made of ______. A. Ceramic B. Copper C. Plastic D. Steel B ...

Massachusetts Oil Burner License Exam - Questions and Answers Which substance offers the most resistance to the flow of electricity? Carbon What must be done to a draft gauge before use? Zero out the scale Which of the following is considered the better chimney? Cement block with a tile liner Air is composed of oxygen and nitrogen in what percentages? 21 and 79 Before installing a new nozzle the service technician should: Flush out the nozzle line and adapter Pulsating oil pump pressure is cau...

What are the 4 modes for heat transfer and example? - 1) radiation: radiator 2) conduction: heated floor, pot on stove 3) convection: forced air system 4) evaporation: AC running at house and come in from the beach sweating (idk what that means ) What are different types of heating systems? - (radiant) pros: easy to zone, min distribution loss, lack of convected heat loss cons: no duct work (need for AC system), recovers slowly pros and cons of the different heating systems? - What is t...

What are the 4 modes for heat transfer and example? 1) radiation: radiator 2) conduction: heated floor, pot on stove 3) convection: forced air system 4) evaporation: AC running at house and come in from the beach sweating (idk what that means ) What are different types of heating systems? (radiant) pros: easy to zone, min distribution loss, lack of convected heat loss cons: no duct work (need for AC system), recovers slowly pros and cons of the different heating systems?...