Hvacr - Study guides, Class notes & Summaries

HVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% CorrectHVACR UNIT 16 Exam| 61 Questions and Answers 100% Correct A solution used as a secondary refrigerant in chillers consisting of water and a chemical which lowers the water's freezing point is called: - ANSWER - Brine. Air-conditioning tube-and-fin coils are commonly a...

A metering device provides a small opening, or orifice, through - which only a certain amount of refrigerant flows into the evaporator. A metering orifice is installed between the - condenser and evaporator and provides the pressure drop between the high side and low side of the system. Add refrigerant - to go down in superheat All refrigeration units have some effect on both - latent and sensible heat, assuming the evaporator is below dew point. ambient temperature - The temperature of t...

A technician uses an ohmmeter to check resistance and for a complete path in the electrical circuit, also known as: - Continuity. A wattmeter is connected to a circuit with 120 V, 10 A, and a power factor of 91.7%. Its reading is: - 1,100 W. An ohmmeter is set on continuity and beeps when the leads are connected to a circuit. This indicates that: - The circuit path is complete. Before attempting to use an electric meter to measure the circuits on a system, the technician should: - Underst...

Basic HVACR 100 Final Exam

A properly placed ladder should have film footing, and the top of the ladder should be - At least three feet above the roof A refrigerant container should never be heated or stored in temperatures above: - 125°F. A simple tool that technicians can use to check for energized circuits is a: - Noncontact voltage detector A typical household outlet has a breaker that will shut off power if 15 amps of current is exceeded. But it only takes how many amps to cause your heart to stop beating. - b...

A restriction in the liquid line after the receiver(or condenser) will cause low or high subcool? - Normal actually since refrigerant not used in the evaporator is stored in the receiver. A restriction in the liquid line after the receiver(or condenser), the condensing temperature will be... - Low due to little heat from evaporator A restriction in the liquid line after the receiver(or condenser), the evaporating temperature will be... - Low A restriction in the liquid line after the recei...

HVACR UNIT 17 EXAM WITH ALL QUESTIONS AND ANSWERS...

HVACR Journeyman Practice Exam Quizzes & Ans!!

HVACR UNIT 16 EXAM LATEST UPDATE...

All NATE specialties are offered at two levels. They are: - Installation and Service 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, cleanliness of work equipment (All of the above) 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 regard...