What is a heat exchanger - Study guides, Class notes & Summaries
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4A Power Engineering - Unit 3 - Introduction to Power Engineering and its Governance in Canada Correct 100%
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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 ...
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Gas Technician G2 Exam Review (Latest 2024/ 2025) Questions and Verified Answers| 100% Correct| Grade A
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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...
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HVAC Oil Burner Test | 100% Correct Answers | Verified | Latest 2024 Version
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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...
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HVACR UNIT 55 QUESTIONS AND ANSWERS ALREADY PASSED
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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...
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MICR221 EXAM QUESTIONS WITH COMPLETE SOLUTIONS
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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...
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Esco Heat pump exam Questions and Verified Answers | Passed | A+
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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...
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NATE Gas Heat Exam Questions with 100% Correct Answers
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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...
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HVAC Unit 31 Gas Heat Questions and Answers 100% Solved
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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...
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NATE Gas Heating Exam Questions with 100% Correct Answers (A+ Paper)
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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 ...
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BECC MOD 6 QUESTIONS AND ANSWERS 100% PASS
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What type of pump uses the throwing force of a rapidly revolving impeller? 
CENTRIFUGAL 
Which pump uses a piston to move a fluid? reciprocating 
The indirect heat exchanger that uses one tube inside another tube is known as what type 
construction? DOUBLE TUBE 
Heat transfer from physical contact between two substances is known as CONDUCTION 
What is used to connect turbines and reduction gear while allowing slight misalignment? 
HIGH SPEED FLEXIBLE COUPLINGS 
The gear cut used to reduce axial ...
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