Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 54, Problem 6ASRQ
While discussing the future use of CO2 as a refrigerant: Technician A says that CO2 is nontoxic and presents little threat to the environment. Technician B says that only slight changes from conventional systems will be required because CO2 systems operate at low pressures and temperatures. Who is correct?
- Technician A only
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
While discussing the reaction by a refrigerant to heat: Technician A says that to absorb heat, the temperature and pressure of the refrigerant are kept low. Technician B says that to dissipate heat, the temperature and pressure are kept high. Who is correct?
principle of Inverter air conditioner and energy saving.
It can be reasonably assumed that a refrigeration system has an adequate refrigerant charge when all the following criteria are met , except for
1. bubbles in the sight glass
2. no bubble in the sight glass
3. proper head pressure
4. proper suction pressure
Chapter 54 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 54 - What is the amount of heat necessary to change the...Ch. 54 - What type of electromagnetic clutch is used in...Ch. 54 - Describe four ways in which the heater control...Ch. 54 - What is the purpose of the compressor clutch...Ch. 54 - What does change of state mean? And why is it...Ch. 54 - What state is the refrigerant in when it leaves...Ch. 54 - What causes condensed water to leak from the air...Ch. 54 - On which of the following laws of nature is the...Ch. 54 - Which of the following statements is true?...Ch. 54 - Which of the following statements is false? The...
Ch. 54 - Which of the following statements about PTC...Ch. 54 - Which of the following is electrically connected...Ch. 54 - Explain why a diode may be wired into the compres...Ch. 54 - Which of the following oils is used in an original...Ch. 54 - A heating system includes all of the following...Ch. 54 - Technician A says that a great amount of heat is...Ch. 54 - Technician A says that suction lines become very...Ch. 54 - While discussing the reasons the use of R-134a is...Ch. 54 - While discussing the reaction by a refrigerant to...Ch. 54 - While discussing solar sensors: Technician A says...Ch. 54 - While discussing the future use of CO2 as a...Ch. 54 - Technician A says that when the A7C system is off,...Ch. 54 - Technician A says that when the refrigerant is...Ch. 54 - A heater does not supply enough heat and the...Ch. 54 - While discussing relative humidity: Technician A...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Describe the difference between an azeotropic refrigerant blend and a near-azeotropic or zeotropic refrigerant blend.arrow_forwardAre federal excise taxes on reclaimed refrigerants the same as those for new refrigerants?arrow_forwardTechnician A says that when the A7C system is off, the refrigerant occupies the system as a liquid and its pressure is the same throughout the system. Technician B says that refrigerant is pumped out of the compressor as a high-pressure, high-temperature vapor and is sent to the condenser. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
- Define a zeotropic refrigerant blend, and give an example.arrow_forwardThe standard that a refrigerant must meet after it has been reclaimed and before it can be sold to another owner is A. ANSI 7000. B. ANSI 700. C. EPA 7000. D. AHRI 700.arrow_forwardWhat is the name of the conference that was held in Canada in 1987 to attempt to solve the problem of refrigerants released into the atmosphere?arrow_forward
- One ton of refrigeration is A. 1200 Btu. B. 12,000 Btu/h. C. 120,000 Btu. D. 120,000 Btu/h.arrow_forwardWhat causes fractionation in certain refrigerant blends?arrow_forwardWhich of the following statements is true? Refrigerant leaves the compressor as a high-pressure, high-temperature liquid. Refrigerant leaves the condenser as a low-pressure, low-temperature liquid. Refrigerant returns to the compressor as a low-pressure, high-temperature vapor. None of the above.arrow_forward
- While discussing the operation of air-conditioning systems: Technician A says that in order for the refrigerant to release heat, it must be at a low temperature and pressure. Technician B says that in order for the refrigerant to absorb heat, it must be at a high temperature and pressure. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhat is the main difference between a zeotropic and an azeotropic refrigerant blend?arrow_forwardTechnician A says that air in the system can cause excessive pressure within the system, restricting the refrigerants ability to change its state from gas to liquid within the refrigeration cycle. Technician B says that moisture can cause freeze-up at the cap tube or expansion valve, which restricts refrigerant flow or blocks it completely. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Automotive Technology: A Systems Approach (MindTa...Mechanical EngineeringISBN:9781133612315Author:Jack Erjavec, Rob ThompsonPublisher:Cengage LearningRefrigeration and Air Conditioning Technology (Mi...Mechanical EngineeringISBN:9781305578296Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill JohnsonPublisher:Cengage Learning
Automotive Technology: A Systems Approach (MindTa...
Mechanical Engineering
ISBN:9781133612315
Author:Jack Erjavec, Rob Thompson
Publisher:Cengage Learning
Refrigeration and Air Conditioning Technology (Mi...
Mechanical Engineering
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:Cengage Learning
First Law of Thermodynamics, Basic Introduction - Internal Energy, Heat and Work - Chemistry; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=NyOYW07-L5g;License: Standard youtube license