Hvacr unit - Study guides, Class notes & Summaries

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...

HVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% Correct A solution used as a secondary refrigerant in chillers consisting of water and a chemical which lowers the water's freezing point is called: - ANSWER - Brine. Air-conditioning tube-and-fin coils are commonly a...

HVACR UNIT 32 QUESTIONS WITH CORRECT ANSWERS!!

A properly placed ladder should have film footing, and the top of the ladder should be - At least three feet above the roof A refrigerant container should never be heated or stored in temperatures above: - 125°F. A simple tool that technicians can use to check for energized circuits is a: - Noncontact voltage detector A typical household outlet has a breaker that will shut off power if 15 amps of current is exceeded. But it only takes how many amps to cause your heart to stop beating. - b...

HVACR UNIT 2 STUDY GUIDE WITH COMPLETE SOLUTIONSHVACR UNIT 2 STUDY GUIDE WITH COMPLETE SOLUTIONSHVACR UNIT 2 STUDY GUIDE WITH COMPLETE SOLUTIONSHVACR UNIT 2 STUDY GUIDE WITH COMPLETE SOLUTIONS 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 - ANSWER - Refrigerant handling and refrigerant management Codes are different than industry standards because codes...

A grain is a small measurement of weight that is used to measure water vapor in the air. How many grains are equal to one pound? - 7,000 Area measurements are used to measure: - The size of a floor in a room. For which of the following measurements is area used? - Surfaces How many grains are in a pound? - 7,000 How many ounces equal one pound? - 16 If you have a system with a 4 gallon per minute (gpm) flow rate, how many gallons will be delivered in one hour? - 240 gallons If you need t...

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