Automotive Technology: Principles, Diagnosis, and Service (5th Edition)
5th Edition
ISBN: 9780133994612
Author: James D. Halderman
Publisher: PEARSON
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Textbook Question
Chapter 20, Problem 1RQ
What types of coolant are used in vehicles?
Expert Solution & Answer
To determine
Write the types of coolants used in vehicles.
Explanation of Solution
Coolant:
Coolant is used to transfer heat from the engine to the radiator in the cooling system. It is also used to prevent corrosion or rusting of the engine and the cooling systems. It mainly prevents freezing during cold seasons.
Coolant is referred as a combination of water and antifreeze. Water has the ability to absorb more heat per gallon when compared to other liquid coolant. Most coolants are provided with corrosion and rust inhibitors to prevent metals in the cooling systems and engine.
The types of coolants that are used in vehicles are as follows:
- Organic acid technology (OAT).
- Inorganic acid technology (IAT).
- Hybrid organic acid technology (HOAT).
- Phosphate hybrid organic acid technology (PHOAT).
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Chapter 20 Solutions
Automotive Technology: Principles, Diagnosis, and Service (5th Edition)
Ch. 20 - What types of coolant are used in vehicles?Ch. 20 - Why is a 50/50 mixture of antifreeze and water...Ch. 20 - What are the differences among IAT, OAT, HOAT, and...Ch. 20 - What are some of the heavy metals that can be...Ch. 20 - What is the difference between galvanic activity...Ch. 20 - Coolant is water and ____________. a. methanol b....Ch. 20 - As the percentage of antifreeze in the coolant...Ch. 20 - Adding a chemical to make ethylene glycol coolant...Ch. 20 - Asian red coolant is what type? a. IAT b. OAT c....Ch. 20 - Prob. 5CQ
Ch. 20 - PHOAT coolant is what color? a. Dark green b. Red...Ch. 20 - DEX-COOL is ____________. a. propylene glycol b....Ch. 20 - Two technicians are discussing testing coolant for...Ch. 20 - Reusing old coolant is generally not approved by...Ch. 20 - A voltmeter was used to check the coolant and a...
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