Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
6th Edition
ISBN: 9780135257272
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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(30 pts) Problem 1
A thin uniform rod of mass m and length 2r rests in a smooth hemispherical bowl of radius r. A
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4
is applied to the rod. Assume that the bowl is fixed and its rim is in the
horizontal plane.
HINT: It will help you to find the length l of that portion of the rod that remains outside the
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M
2r
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c) Derive an equation for the variation in the position of the center of mass (i.e., Sŕƒ)
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e) In the case of an applied moment (i.e., M
=
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4
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Chapter 20 Solutions
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
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 - 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 - What percentage of coolant is water? a. 80% b. 50%...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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