Automotive Technology: A Systems Approach - With Manual and Access
6th Edition
ISBN: 9781305513235
Author: ERJAVEC
Publisher: Cengage
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Textbook Question
Chapter 28, Problem 11RQ
How does SCR lower the 
content in a diesel’s exhaust?
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Chapter 28 Solutions
Automotive Technology: A Systems Approach - With Manual and Access
Ch. 28 - Pump gasoline may contain a small amount of...Ch. 28 - True or False? The diesel fuels antiknock quality...Ch. 28 - What percentage of ethanol does E85 contain?Ch. 28 - List five advantages the use of piezoelectric...Ch. 28 - What does the Reid vapor pressure (RVP) test...Ch. 28 - List three alternative fuels for an internal...Ch. 28 - Why is the sulfur content in gasoline limited?Ch. 28 - Prob. 8RQCh. 28 - What is particulate matter and when is it...Ch. 28 - What are oxygenates and why are they added to...
Ch. 28 - How does SCR lower the content in a diesels...Ch. 28 - True or False? Piezoelectric materials can emit a...Ch. 28 - Name three driveability factors that are affected...Ch. 28 - Which of the following statements about hydrogen...Ch. 28 - Which of the following chemicals is commonly added...Ch. 28 - Technician A says that the use of methanol in...Ch. 28 - Technician A says that reformulated gasoline...Ch. 28 - Technician A says that dedicated vehicles are...Ch. 28 - Technician A says white smoke in the exhaust of a...Ch. 28 - Technician A says piezo material is a type of...Ch. 28 - Prob. 6ASRQCh. 28 - While discussing chemicals that are currently...Ch. 28 - While discussing common rail fuel injection...Ch. 28 - Technician A says diesel engines consume less fuel...Ch. 28 - While discussing the reasons why the use of E85...
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- Why do the EGR systems on many late-model diesel vehicles include an EGR cooler?arrow_forwardWhat are three possible problems that can allow fuel pressure to rapidly bleed down once the engine is shut off?arrow_forwardTechnician A says diesel engines can be used in a hybrid powertrain . Technician B says a gaso line engine is normally used in hybrid power train . Who is correct ?arrow_forward
- Q/ What is specific fuel consumption of an engine?arrow_forward2- Explain the differences and similarities between the engine temperature sensitivity and the incoming air temperature, and how do they affect the balance of the injected fuel volume determined by the electronic control unit?arrow_forwardExplain fuel quantity measurement and control methods of ECU in diesel enginesarrow_forward
- True or False? The diesel fuel’s antiknock quality ismeasured by the cetane ratingarrow_forwardTechnician A says that only offshore engines are permitted to use port-helix metering fuel systems on EPA MY 2010 compliant and later engines. Technician B says that port-helix metering injection pumps can be used on current diesel engines when the peak power rating is less than 70 BHP (52 kW). Who is correct?arrow_forwarddefine Thermal efficiency in the context of an ICE hybrid enginearrow_forward
- Definition of exhaust and general information ? how to make the exhaust ? what is the function of exhaust ?arrow_forward1-What is specific fuel consumption of an engine? 2-Why does BSFC decrease with load? 3-What happens when petrol is used in diesel engine? Which engine is more efficient? 4-Which engine produces the most torque (diesel or petrol)? Differentiate SFC and TFCarrow_forwardWhile discussing electric exhaust gas recirculation (EEGR) systems: Technician A says that some are air cooled. Technician B says that some are cooled by engine coolant. Who is correct? a. Technician A only b. Technician B only c. Both A and B d. Neither A nor Barrow_forward
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