Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN: 9781305578296
Author: John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher: Cengage Learning
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Textbook Question
Chapter 29, Problem 13RQ
A T XV system responds to an overcharge of refrigerant by
A. low suction pressure.
B. high head pressure.
C. a flooded compressor.
D. both A and B
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Students have asked these similar questions
Which is not a pressure or force acting on a TXV diaphragm?A. Head pressureB. Evaporator pressureC. Spring pressureD. Bulb pressure
When a refrigeration system's suction line is noticeably cold instead of just being cool , it probably contains refrigerant .
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When there is an excess
potential energy during the
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Chapter 29 Solutions
Refrigeration and Air Conditioning Technology (MindTap Course List)
Ch. 29 - What is the first thing a technician should know...Ch. 29 - What is the coil-to-air temperature relationship...Ch. 29 - When food dehydration is not a factor, the...Ch. 29 - Prob. 4RQCh. 29 - Why is minimum dehydration not used on every job?Ch. 29 - What is the coil-to-air temperature relationship...Ch. 29 - At what evaporator temperature does an ice maker...Ch. 29 - What is the evaporator coil-to-air relationship...Ch. 29 - What is meant by the term approach when dealing...Ch. 29 - How can an evaporator be tested for efficiency?
Ch. 29 - How can a condenser be tested for efficiency?Ch. 29 - How can a hermetic compressor be tested for...Ch. 29 - A T XV system responds to an overcharge of...Ch. 29 - An automatic expansion valve system responds to an...Ch. 29 - A capillary tube system responds to an overcharge...Ch. 29 - Prob. 16RQCh. 29 - Prob. 17RQCh. 29 - Capillary tube
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- An automatic expansion valve system responds to an overcharge of refrigerant by A. low suction pressure. B. high head pressure. C. a flooded compressor. D. both B and Carrow_forwardQuality means _________ when referring to a refrigerant.arrow_forwardA capillary tube system responds to an overcharge of refrigerant by A. high suction pressure. B. high head pressure. C. a flooded compressor. D. all of the abovearrow_forward
- Choose correct answer: An air compressor forms a _______________ A. isolated system B. combined open and isolated system C. closed system D. open systemarrow_forwardWhat kind of circuit balancing valve is used in the hot and chilled water piping? a. balancing globe valve b. shut-off balancing valve c. pressure balancing valve d. pressure by-pass valvearrow_forwardA one-way valve that lets air into the reservoir of a compressor, but does not let it out, is a Select one: O a. Receiver valve O b. Control valve O . Check valve O d. Three-way valvearrow_forward
- Variable refrigerant flow (VRF) systems modulate the volume of refrigerant that is pumped through the system. This allows? A. Lower operation cost B. Better operating efficiencies C. Matching system capacity to the load D. All the abovearrow_forwardA pump forms a ___________system A. isolated B. closed C. both open and isolated D. openarrow_forward17. Which of the following relief valves is designed to vent refrigerant under excessive pressure and then close when the system pressure has been lowered? A. Fusible plug. B. Manifold valve. ytor C. Rupture disc. D. Spring-loaded relief valve. e quicaarrow_forward
- Which of the following compressor, increases pressure by reducing the volume a. Axial compressor O b. Centrifugal compressor Oc Dynamic compressor. O d. Reciprocating compressorarrow_forwardThe approach temperature for the evaporator isA. the difference between the suction and head pressuresconverted to temperature.B. the difference between the refrigerant boiling temperatureand the suction-line temperature.C. the difference between the refrigerant boiling temperatureand the inlet water temperature.D. the difference between the refrigerant boiling temperatureand the leaving-water temperature.arrow_forwardFor a hydraulic power unit, this part protects the pump from taking in any harmful particles that may be in the reservoir a. liquid level gauge b. filler/breather c. pressure gauge d. suction strainerarrow_forward
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