Thermostatic - Study guides, Class notes & Summaries

HVAC (EPA Certification Exam Section 608) Questions With Verified Solutions | ALREADY PASSED | LATEST REVISED UPDATE What does a metering device do? - ANSWER The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. What is absorbed in the evaporator? - ANSWER Heat is absorbed in the evaporator. What happens in the evaporator? - ANSWER Heat is absorbed in the evaporator and causes the refrigerant to boil from liquid to vapor. At...

FDNY Fire Life & Safety Director Test #321 Complete Questions And Answers 2023 A fire pump is usually connected to the ________ for most of its water supply source. Public water main Fire escapes/external stairs are considered to be a __________ means of egress from a building. secondary A thermostatic detector is sensitive to which of the following: Heat The person responsible by law for complying with the Fire Safety Laws is the: The Building Owner Your Fire Alarm Control Panel s...

HVAC CONTRACTOR EXAM 2024 WITH 100% ACCURATE SOLUTIONS An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter - correct answer voltmeter This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and control superheat A. automatic expansion valve B. thermostatic expansion valve C. low side float D. schraeder valve - correct answer thermostat...

A CCOT system has a high high side. Technician A says to suspect the thermostatic expansion valve. Technician B says this system contains an orifice tube. Who is correct? - ANSWER-TECH B is correct. A clogged orifice tube will result in high high side pressure. It can become clogged with contaminants, debris from a damaged compressor, or a broken desiccant bag releasing desiccant into the refrigerant. A vehicle's air conditioning performance is reduced at low speeds and stop lights, but cool...

What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? - Correct answer-November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? - Correct answer-Recover all refrigerants. The objective of the Clean Air Act is to protect what? - Correct answer-The earth's stratosphere. HFC's - Correct answer-HydroFlouroCarbon's CFC's - Correct answer-ChloroFluoroCarbon's ODP - Correct answer-Ozone Depletion Potential Which in...

HVAC CONTRACTOR EXAM QUESTIONS AND ANSWERS ALREADY PASSED An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter voltmeter This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and control superheat A. automatic expansion valve B. thermostatic expansion valve C. low side float D. schraeder valve thermostatic expansion valve when...

NATE AC Service Certification/ 99 Questions with Certified Solutions. Terms like: An air conditioner refrigerant circuit should be evacuated to a minimum of: A. 0 microns. B. 200 microns. C. 500 microns. D. 1200 microns. - Answer: C. 500 microns. Which of the following substances could create an extremely dangerous condition if used to check refrigeration system for leaks? A. R-22 B. Nitrogen C. Oxygen D. Carbon Dioxide - Answer: D. Carbon Dioxide The subcooling method for ...

An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter : voltmeter This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and control superheat A. automatic expansion valve B. thermostatic expansion valve C. low side float D. schraeder valve : thermostatic expansion valve 2 | P a g e when installing a reversing valve on a heat pump, how man...

Nate Electrical Exam With 100% Correct Answers 2024 What electro-mechanical control would you use on a cap tube or automatic expansion valve system to maintain the space temperature? - Correct Answer-C: A thermostatic control

An instrument that measures potential differences between 2 points in an electrical circuit is called? A. potentiometer B. thermistor C. ohmeter D. voltmeter - ans-voltmeter This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and control superheat A. automatic expansion valve B. thermostatic expansion valve C. low side float D. schraeder valve - ans-thermostatic expansion valve when installing a reversing valve on a heat pump, ho...