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 7RQ
Describe how a selective catalytic reduction system works.
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Students have asked these similar questions
10) Which one of the following statements is incorrect about a catalytic converter?
O It is not very efficient at lower temperatures.
O Its NOx conversion efficiency is highest for very lean mixtures.
O Its CO conversion efficiency is high for lean mixtures.
O Lead reduces its effectiveness.
11) Which one of the following is true about a particulate trap?
O It is predominantly used in Sl engines.
O It does not offer a restriction to exhaust flow.
O It requires periodic regeneration.
O It is predominantly used to reduce NOx emissions.
What the differences between from the following:
-Natural and refinery gas
-Thermal and catalytic reforming
3 Ways to extract diesel from a mixture and its step by step process
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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- What types of catalyst are typically used to reduce NOx and to oxidize HC and CO?arrow_forwardIncomplete combustion is permitted because a significant amount of heat is still generated. true of falsearrow_forwardthe goverment mandated warranty that specifically covers the catalytic converter and engine control module is thearrow_forward
- In a catalytic converter in an automobile, the reaction of carbon monoxide with oxygen produces __________. carbon dioxide methane nitrogen oxide carbon and more oxygen waterarrow_forward1: List the safety mechanisms that contrast medium injection devices are equipped with. 2: What are the five factor that affect injector flow rate?arrow_forwardUse Table 31-7 to determine which oxygen fuel-gas mixture produces the highest total heat.arrow_forward
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