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 7CQ
Two technicians are discussing testing coolant for proper pH. Technician A says that coolant has a pH above 7 when new and becomes lower with use in an engine. Technician B says that OAT and HOAT coolants have a lower pH when new compared to the od green IAT coolant. Which technician is correct?
- a. Technician A only
- b. Technician B only
- c. Both Technicians A and B
- d. Neither Technician A nor B
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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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