Hvacr electricity Study guides, Class notes & Summaries

____________________ means that a particular circuit or component has a complete path for current to follow. - AnswerContinuity A conductor is a material that does not take on electrons. - AnswerFalse A high pressure switch will most likely be located where in the refrigeration system? - AnswerDischarge Line A low pressure switch will most likely be located where in the refrigeration system? - AnswerDischarge Line A solenoid is not considered to be a load because it consumes very little e...

NCCER HVACR SECTION 3 ; BASIC ELECTRICITY TEST 2024...

What is electricity? - Flow of electrons between atoms in common wire material or load What is current flow? - Electrons flow What creates a magnetic field in a conductor? - Current flow What is voltage? - Electrical pressure that pushes current flow What is the difference between a conductor and an insulator? - A conductor allows current flow. What are the two common types of electricity? - Direct current and alternating current What is control voltage? - ...

ELECTRICITY FOR HVACR EXAM QUESTIONS AND ANSWERS #8

How much current is drawn by a 120V circuit containing a 1,500W load? Ans: 12.5A How much power is consumed by a 120V parallel circuit that contains a 100 load and an 80 load and draws 2.7A? Ans: 125W What characteristic do devices that use DC instead of AC power often have in common? Ans: They are battery-powered and mobile One milliamperes is equal to _____. Ans: 1/1,00 of an amp Current is measured in ______. Ans: Amperes If a load is supplied by 120V and draws 5A of current, how ...

Unit 1: Read This Unit First: What I Need to Know to Understand Electricity Unit 2: Ohms Law Unit 3: Safe Use of Electrical Instruments Unit 4: Electrical Fasteners Unit 5: Power Distribution Unit 6: National Electric Code Unit 7: Electrical Installation of HVAC Unit 8: Transformers Unit 9: Relays, Contactors and Motor Starters Unit 10: Capacitors Unit 11: Thermostats Unit 12: Pressure Switches Unit 13: Miscellaneous Electrical Components Unit 14: How Do Mo...

EPA SECTION 608 CORE (2021-2022 revision) A disposable cylinder should be reduced to what pressure before scrapping? a. 0 psig b. 20 psig c. 50 psig d. 80 psig A major system repair is being performed on a R-22 appliance. What CANNOT be done to recharge the appliance? a. Add R-22 after the repair is complete. b. Retrofit the unit to R-407C. c. Use recovered or recycled R-22 from the same owner. d. Top off the unit with R-410a. A refillable cylinder must not be filled above what ...

NATE Exam: Air Conditioning and Heat Pumps, questions with complete top solutions Which of the following factors affects a customer's level of comfort? a. Air movement b. Humidity c. Temperature d. All of the above d (All of the above: air movement, humidity, temperature) A cooling load calculation estimates the sensible heat gain of a structure. The maximum sensible capacity of a cooling-only system should be within ____% of this calculated value. a. ±10% b. +10% c. +15% ...

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. ...