Hvacr 100 - Study guides, Class notes & Summaries

HVACR Journeyman Practice Exam with Answers A+ Graded In a (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: - CORRECT ANSWER-Operate at High Efficiency. What is one of the main reasons that reciprocating compressors are not 100% efficient? - CORRECT ANSWER-Clearance Volume A dirty evaporator and return air filters subsequently causes low evaporator pressures which will cause - CORRECT ANSWER-High Compression Rati...

using an ohmmeter, there is 120 VAC between high speed and ground wires, this indicates : open if temperature rise is too high... : increase fan speed how many of the 3 OSHA conditions defining confined spaces must be met : all 3 what causes the temperature limit safety switch to shut off the burner : fan motor failure flashback indicates : the gas is flowing slower than the speed at which burn is occurring what type of connector is used to control noise in ductwork 2 | P a g e : v...

HVACR Practice Test Accurate 100%(RATED A+)What is the symbol for impedance? a. R b. I c. Z d. P - ANSWER z The safety ground conductor for A/C circuit is usually color coded ________. a. red b. green c. black d. white - ANSWER Green Resistance is _______. a. amperage b. electrical pressure c. opposition to current flow d. voltage applied to the circuit - ANSWER opposition to current flow How many watts of power are used by a heater operating at 480 volts and drawing 5 amps?...

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,...

NATE Exam: Core Essentials | 121 Questions with 100% Correct Answers 2024 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 ...

NATE CORE complete latest exam 100% guaranteed pass When explaining to a customer that you have topped off the system charge, which of the following terms is most appropriate? - answer 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. - answer The ability to utilize all types of communication skills is _____ to the HVACR technician - answer Lis...

HVACR Journeyman Practice Exam with Answers A+ Graded In a (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: - CORRECT ANSWER-Operate at High Efficiency. What is one of the main reasons that reciprocating compressors are not 100% efficient? - CORRECT ANSWER-Clearance Volume A dirty evaporator and return air filters subsequently causes low evaporator pressures which will cause - CORRECT ANSWER-High Compression Rati...

In a (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: - ANSWER Operate at High Efficiency. What is one of the main reasons that reciprocating compressors are not 100% efficient? - ANSWER Clearance Volume A dirty evaporator and return air filters subsequently causes low evaporator pressures which will cause - ANSWER High Compression Ratios The automatic expansion valve (AEV) maintains a constant ______ in the evapor...

NATE Core Exam Practice Questions and Answers 100% Pass Ch. 1-1 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) very important Ch. 1-2 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. a) clear b) complete c) concise d) all ...

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...