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NATE/ICE Test Questions and Answers (Latest Update 2023), Exams of Nursing

A list of questions and answers related to refrigeration and air conditioning systems. It covers topics such as heat transfer, refrigerant types, compressor types, and condenser types. The document also includes formulas for converting Celsius to Fahrenheit and vice versa. The questions and answers are useful for those preparing for the NATE/ICE certification exam or for those studying refrigeration and air conditioning systems.

Typology: Exams

2022/2023

Available from 05/26/2023

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Download NATE/ICE Test Questions and Answers (Latest Update 2023) and more Exams Nursing in PDF only on Docsity! NATE/ICE Test Questions and Answers (Latest Update 2023) formula to convert Celsius to Fahrenheit - correct answer ✅F = (1.8 x C) + 32 formula to convert Fahrenheit to Celsius - correct answer ✅C = .56 (F - 32) specific heat - correct answer ✅the amount of heat required to raise 1 lb of a substance 1 degree Fahrenheit sensible heat - correct answer ✅Is the heat that came be measured or sensed by a thermometer latent heat - correct answer ✅hidden heat that changes the state of a substance Btu - correct answer ✅The amount of heat requires to raise one pound of water one-degree Fahrenheit The amount of heat that it takes to change 1 lb of 212 degrees Fahrenheit water to 1 lb of 212 steam is - correct answer ✅970 Btu NATE/ICE Test Questions and Answers (Latest Update 2023) that amount of heat requires to change 1 lb of 32 degrees Fahrenheit ice to 1 lb of 32 water is - correct answer ✅144 Btu conduction - correct answer ✅Is the transfer of heat from one molecule to another convection - correct answer ✅The transfer of heat from one place to another by fluid radiation - correct answer ✅The transfer of heat from a heat source to a solid object through space one ton of refrigerant is equivalent to _____ But per hour - correct answer ✅12,000 when a substances changes from liquid to gas is - correct answer ✅latent heat of vaporization NATE/ICE Test Questions and Answers (Latest Update 2023) _____ occurs when a zeotropic or a ternary refrigerant is added to a system as a gas - correct answer ✅fractionation mineral oils are often referred to as _____ oils - correct answer ✅petroleum mineral oils are most commonly used with - correct answer ✅CFC refrigerants synthetic oils are _____ chemicals produced to function as lubricants - correct answer ✅man-made synthetic lubricants absorbs more _____ than a mineral oil - correct answer ✅moisture polyol ester lubercants should be stored in their own container because _____ can permeate through certain materials - correct answer ✅maisture polyol ester oils is the only lubricant suitable to use with _____ - correct answer ✅R-134A NATE/ICE Test Questions and Answers (Latest Update 2023) _____ oil is a synthetic oil made by mixing benzene and propylene - correct answer ✅Alkylbenzene alkylbenzene oil is commonly used with _____ refrigerant and can be used with CFC refrigerants - correct answer ✅HCFC floc point - correct answer ✅Is the temperature at which oil starts to produce a waxy substance pour point - correct answer ✅Is the ability of oil to flow with refrigerants at a very low temperatures miscibility - correct answer ✅Is the ability of a fluid to readily mix with another fluid hygroscopic oil had a _____ ability to absorb moisture - correct answer ✅high NATE/ICE Test Questions and Answers (Latest Update 2023) if moisture levels seen more than _____ ppm in an air conditioning or refrigeration system, corrosion will result. - correct answer ✅100 reciprocating compressors use _____ to compress the refrigerant gas - correct answer ✅pistons positive displacement compressors: - correct answer ✅* reciprocating * rotary * screw * scroll nonpositive displacement compressors: - correct answer ✅centrifugal screw compressors are used one large _____ systems - correct answer ✅tonnage scroll compressors are _____% higher in efficiency than reciprocating types - correct answer ✅10 NATE/ICE Test Questions and Answers (Latest Update 2023) The condenser - correct answer ✅de-superheats and schools the refrigerant a water regulating valve controlles the water through the water cooled _____ - correct answer ✅condenser a water regulating valve can be located at the _____ or _____ of a water cooled condenser - correct answer ✅* inlet * outlet 3 most common water cooled condenser are: - correct answer ✅* tube- within-a-tube * shell-and-coil * shell-and-tube The _____ type water cooled condenser uses the inner tube for refrigerant and the outer tube for water - correct answer ✅tube-within-a-tube NATE/ICE Test Questions and Answers (Latest Update 2023) The _____ type water cooled condenser has the refrigerant in a shell. the water flows through the coil and the tube located inside the shell - correct answer ✅shell-and-coil The _____ is the end cap of a shell-and-tube condenser - correct answer ✅water box a _____ condenser can be cleaned manually by removing the water box - correct answer ✅shell-and-tube