Hvacr unit Study guides, Class notes & Summaries

HVACR UNIT 55 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ A major difference between the operation of an oil furnace and a gas furnace is that: Correct answer: The oil must be atomized before ignition. An oil furnace heat exchanger is built: Correct answer: Like a drum. How are oil burner nozzles rated? Correct answer: Cone shape, spray angle, and GPH Modern residential oil furnaces sense the flames using: Correct answer: A cadmium sulfide cell. Sealed combust...

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HVACR Unit 76 - Commercial Air-Conditioning Systems Questions With Complete Solutions

HVACR UNIT 12 Final Exam 2023/2024. A compressor that squeezes gas between the piston and a valve plate at the top of the cylinder is called a: - ANSWER Reciprocating compressor. A compressor that squeezes gas between two rotating screws shaped like augers is called a: - ANSWER Screw compressor. A compressor that uses a high-speed impeller to throw the refrigerant outwards is called a: - ANSWER Centrifugal compressor. A compressor that uses a roller that rotates in an orbital motion...

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HVACR UNIT 2 STUDY GUIDE, Questions & Answers. 100% Accurate. Verified. Every HVACR technician must become certified under the EPA Section 608 regulations. This certification is to ensure the technician understands and complies with the regulations regarding - -Refrigerant handling and refrigerant management Codes are different than industry standards because codes are - -Required by Law Customers often judge the ability of an HVACR technician by - -His Apperance, Neatness of vehicle,...

In HVACR terms, what is a feature? - correct answer A special characteristic of a product. In HVACR terms, what is a benefit? - correct answer The value the customer receives from using the feature What type of temperature is often used by customers when discussing human comfort? - correct answer Dry bulb What is an honest person? - correct answer A person who is free from fraud or deception, credible, and is marked with integrity. An honest person is fair in their dealings with other p...