What is a heat exchanger - Study guides, Class notes & Summaries

why was the ASME formed? - ANSWER develop tech info, high standard of design and education, personal and professional development,ethical conduct, solutions for tech problems CSA B51 committee? - ANSWER provincial and territorial jurisdiction, boiler manufacturers, insurance companies what is the purpose of B52? - ANSWER provide safe design, construction, installation, operation, repair of refrigeration and air con. promote uniform requirements ASME 1 - ANSWER aspects of boiler design ...

Gas Technician G2 Exam Review (Latest 2024/ 2025) Questions and Verified Answers| 100% Correct| Grade A Q: A regulator is sized for the load it is to serve by: Answer: Checking the appliance rating place and selecting a regulator for that input range. Q: A propane vaporizer shall not raise the pressure in a tank in excess of: Answer: 215 PSIG Q: Which of the following best describes a bellows type meter? Answer: One which uses pressure differential across an...

An up flow furnace - 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. - 2 How much heat is produced when 2 gallons of No. 2 fuel oil is burned? - 280,000 What could be the cause of a high steak temperature - Too much air How would you prove a furnace was stopped up with soot in the heat exchanger - Draft gauge at the inspection door What is the function of a heat exchanger - To ex...

HVACR UNIT 55 QUESTIONS AND ANSWERS ALREADY PASSED A major difference between the operation of an oil furnace and a gas furnace is that: The oil must be atomized before ignition. An oil furnace heat exchanger is built: Like a drum. How are oil burner nozzles rated? Cone shape, spray angle, and GPH Modern residential oil furnaces sense the flames using: A cadmium sulfide cell. Sealed combustion oil furnaces use: High static oil burners. Select the functions that the primary co...

MICR221 EXAM QUESTIONS WITH COMPLETE SOLUTIONS Define death of microorganisms - Answer-Loss of ability to multiply under any known conditions Define sterilisation - Answer-Complete removal or destruction of all microorganisms from inanimate objects. Non-selective physical and chemical methods Define disinfection - Answer-Destruction or removal of microorganisms (but not bacterial endospores) on inanimate objects by physical or chemical methods Define antisepsis - Answer-Chemicals ap...

1. An air-to-air heat pump has many of the same components as an air conditioning system. The major difference is that a heat pump also has a (an); : C: reversing valve. 2. What is the difference between "demand defrost" and "timed defrost?" : D: demand defrost only happens when needed, and time defrost is on timed temperature 3. The thermostat that controls the auxiliary electric heat according to the outdoor temperature is called the; : C: outdoor ambient thermostat. 4. The out...

HVAC Unit 31 Gas Heat Questions and Answers 100% Solved Name the four main components of a gas fired heating system. ️️Manifold and controls Burners Heat exchanger Venting system Name the four types of furnace flow patterns. ️️Upflow Low-boy Downflow Horizontal Which type of furnace is usually found in basements that have low headroom? ️️Low-boy What is another name for a downflow furnace? ️️Counterflow Where do you usually find horizontal furnaces? ️️In crawl sp...

Furnace efficiency is Correct Answer the difference between the heat input and the actual heat output, expressed as a percentage Furnace efficiency is calculated by Correct Answer useful output divided by input Combustion efficiency is Correct Answer an index of the useful heat obtained from the gas being burned AFUE (Annual Fuel Utilization Efficiency) is Correct Answer a percentage of the annual average efficiency of a furnace as determined by laboratory tests All furnaces manufact...

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 ...

The use of furnace cement or other materials to seal a cracked heat exchanger or parts which provide closure shall be for _________ repairs only. correct answersTemporary 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: correct answers-Emptied of all liquid contents and sludge. -Cleaned and rendered free of ...