Hvacr unit 6 - Study guides, Class notes & Summaries

HVACR UNIT 65 EXAM WITH ALL QUESTIONS AND ANSWERS...

HVACR UNIT 66 TEST 2024...

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...

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...

NATE Air Conditioning and Heat Pump Exam Questions and Answers Updated (GRADED A+) The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating load. - ANSWER- +25% The combined output of a heatpump and its auxiliary heat should not exceed the calculated heat loss of a home by more than ____%. - ANSWER-15% What amount of auxiliary electronic heat is needed when the output of a heat pump on a design d...

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...

Which of the following factors affects a customers level of comfort? All of the above A cooling load calculation estimates the sensible heat gain of the structure. The cooling-only system should be within _____% of this calculated value. +15% The maximum sensible cooling capacity of a heat pump should be within ______% of the calculated sensible heat gain of a structure with a large heating load. +25% The combined output of a heatpump and its auxiliary heat should not exc...

An ----- should be taken and ----- if a system has a major component failure. - Answer oil sample analyzed (evacuation) The system vacuum gauge should be connected ----- from the vacuum pump. - Answer far as possible To receive any certification, which section must be passed? - Answer Section A (core) Always review the -----, when working with any solvents, chemicals, or refrigerants - Answer material safety data sheets Cylinders should be transported in an ----- position - Answer u...

NATE Exam: Core Essentials, questions and answers. Verified d (very important) The ability to utilize all types of communication skills is ____ to the HVACR technician. a. not as important as "hands-on" technical skills b. somewhat important c. unimportant d. very important d (all of the above: clear, complete, concise) It is important to be ____ in filling out service orders so that office staff, other technicians, and customers will know what work you completed on the job. ...