Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Textbook Question
Chapter 33, Problem 8RQ
HC emissions may come from the tailpipe or sources.
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Chapter 33 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
Ch. 33 - Explain why a small PCV valve opening is adequate...Ch. 33 - At what temperature do nitrogen atoms combine with...Ch. 33 - Describe the operation of a digital EGR valve.Ch. 33 - Name the three types of emissions being controlled...Ch. 33 - The PCV system prevents from escaping to the...Ch. 33 - In a negative backpressure EGR valve, if the...Ch. 33 - Describe how a selective catalytic reduction...Ch. 33 - HC emissions may come from the tailpipe or...Ch. 33 - What types of catalyst are typically used to...Ch. 33 - Why is a PCV system critical to an engines...
Ch. 33 - Which of the following systems is designed to...Ch. 33 - What is a catalyst?Ch. 33 - Rather then rely on the AIR system for extra...Ch. 33 - Which of the following statements about carbon...Ch. 33 - Why do the EGR systems on many late-model diesel...Ch. 33 - While discussing PCV valve operation: Technician A...Ch. 33 - While discussing EGR systems with a differential...Ch. 33 - While discussing evaporative (EVAP) systems:...Ch. 33 - Technician A says that an EGR valve that is stuck...Ch. 33 - While discussing SCR systems: Technician A says...Ch. 33 - While discussing automotive emissions: Technician...Ch. 33 - Technician A says that during oxidation, as NOx...Ch. 33 - While discussing PCV systems without a PCV valve:...Ch. 33 - While diagnosing the cause of high HC and O2...Ch. 33 - While discussing electric exhaust gas...
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- Why is the sulfur content in gasoline limited?arrow_forwardWhat are three possible problems that can allow fuel pressure to rapidly bleed down once the engine is shut off?arrow_forwardIf a fuel system loses pressure immediately after the ignition is turned off, the possible problems are all of the following except. a. a leaking injector b. restricted fuel lines c. leaking connectors or hoses d. a faulty pressure regulatorarrow_forward
- List at least five safety precautions that should be adhered to when working with fuel systems.arrow_forwardWhile diagnosing a PCV problem: Technician A says that a stuck open PCV valve will cause a richer than normal air-fuel mixture. Technician B says that oil in the air cleaner assembly can be caused by worn piston rings. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forwardDescribe carbon monoxide (CO) emissions in relation to air-fuel ratio.arrow_forward
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