Automotive Technology: A Systems Approach (MindTap Course List)
6th Edition
ISBN: 9781133612315
Author: Jack Erjavec, Rob Thompson
Publisher: Cengage Learning
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Chapter 28, Problem 8RQ
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Whether the given statement is True or false.
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an engine is being discussed for lean running condition. technician A checks for air leak in the intake. Technician B checks for alcohol in the fuel. who is correct?
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Chapter 28 Solutions
Automotive Technology: A Systems Approach (MindTap Course List)
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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- When should the ATF level be checked on most vehicles? a. When the engine is cool b. When the engine is at operating temperature and the engine is off c. When the engine is at operating temperature and the engine is on d. It does not matterarrow_forwardWhich of the following are not typically found in the block of a modern engine? a. Pistons b. Crankshaft c. Valves d. Oil pumparrow_forwardTrue or False? Engine misfires can cause a catalytic converter to overheat.arrow_forward
- Technician A says that black exhaust smoke is an indication of a too-rich air-fuel mixture. Technician B says that white smoke (steam) is an indication of coolant being burned in the engine.arrow_forwardTrue or False? The first step in removing an engine is usually the removal of the intake and exhaust manifolds.arrow_forwardWhich of the following is not an effective way to determine if an engine has an internal coolant leak? Performing a pressure test on the system Visually inspecting the exhaust, coolant, and engine oil Using a dye penetrant and black light Using a combustion leak testerarrow_forward
- True or False? On todays vehicles, an electric fuel pump runs only when the engine is running.arrow_forwardTechnician A says diesel engines consume less fuel per mile than a gasoline engine of the same size. Technician B says diesel engines provide more torque than a gasoline engine of the same size. Who is correct? a. Technician A b. Technician B c. Both A and B d. Neither A nor Barrow_forwardWhich of the following is not accomplished by the fuel and air system of a gasoline engine? Stores the fuel for later use Collects and cleans the outside air Delivers fuel to a device that will control the amount of fuel going to the engine Keeps the fuel and air ratio constant regardless of the conditions under which the engine is operatingarrow_forward
- Carbon deposits on the intake valve or seat may cause the valve not to close properly. Tech a says that the flywheel will be harder to spin when starting the engine. Tech b says that the engine will loose power. Who is correct?arrow_forward1 Before conducting a __________ test, disable the ignition and the __________ injection system. Most manufacturers recommend that the engine be __________ when testing.arrow_forwardWhich of the following statements about carbondioxide is not true?a. CO2 levels are highest when the air-fuel ratiois slightly leaner than stoichiometric.b. The production of CO2 is directly related tothe amount of fuel consumed; therefore,more fuel-efficient engines produce less CO2c. To reduce CO2 levels in the exhaust, engineers are working hard to decrease fuel consumption to keep CO2low.d. The concern for CO2 emissions is one of theprimary reasons for the delayed use of alternative fuels for automobiles.arrow_forward
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