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Kami Export - annotated-Engine%20Fundamentals

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School
University High School, Tucson**We aren't endorsed by this school
Course
AUTO 101
Subject
Mechanical Engineering
Date
Jan 13, 2025
Pages
6
Uploaded by ChiefLeopardMaster967
Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website.49Name _______________________________________________________________Date _______________________ Period ______________Chapter ReviewOBJECTIVE:After studying this chapter, you will be able to explain the basic operation and construction of a typical automotive engine.1. _____ The _____ is the hollow area between the top of the piston and the bottom of the cylinder head.A. valve chamberB. combustion chamberC. portD. cavity2. _____ Piston _____ is the distance the piston slides up or down from top dead center to bottom dead center.A. strokeB. boreC. compressionD. rod length3. _____ True or False?The crankshaft must rotate four complete revolutions to complete the four-stroke cycle.4. _____ The engine _____ forms the main body of the engine.A. headB. top endC. blockD. bottom end5. _____ The _____ are large, round holes machined through the block from top to bottom.A. portsB. cylindersC. castingsD. forgings6. _____ True or False?The crankshaft changes the up-and-down motion of the pistons into a rotating motion.7. _____ Engine main bearings are inserts that fit between the block main bore and the crankshaft _____.E. main journalsF. sprocket or gearG. counterweightsH. rear flange8. _____ A main _____ limits the distance the crankshaft can slide forward or rearward in the block.A. clutch bearingB. roller bearingC. needle bearingD. thrust bearing9. _____ All of the following are functions of an engine flywheel except_____.A. connects the engine to the transmission or transaxleB. smooths engine operationC. controls engine idle speedD. provides a large ring gear to start the engineEngine FundamentalsCHAPTER 11
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Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website.50 Modern Automotive Technology Workbook10. _____ The connecting rod transfers piston _____ and combustion pressure to the crankshaft _____.A. inertia, rod journalsB. movement, rod journalsC. movement, main journalsD. heat, main journals11._____ What is the term for the small space between the rod bearing and the crankshaft journal?A. Rod bearing clearance.B. Rod bearing tolerance.C. Main bearing clearance.D. Main bearing tolerance.12. _____ Piston _____ must keep combustion pressure from entering the crankcase and must also keep _____ out ofthe combustion chamber.A. heads, oilB. pins, waterC. rings, oilD. skirts, air13.Identify the parts of the engine piston in the following illustration.14. _____ _____ are small pockets formed in the cylinder heads.A. Combustion chambersB. Intake and exhaust portsC. Piston ring groovesD. Valve guides15. _____ True or False?The intake ports route air or air and fuel into the combustion chambers.16. _____ Which of the following engine parts usually rides on the cam lobes and transfers motion to the rest of thevalve train?A. Valve guide.B. Cam follower or valve lifter.C. Valve seal.D. Valve spring assembly.A.__________________________B.__________________________C.__________________________D.__________________________ABCDGoodheart-Willcox Publisher
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Chapter 11 Engine Fundamentals 51Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website.Name _______________________________________________________________17. _____ True or False?An automotive engine’s exhaust valves are usually larger than the intake valves.18. _____ Keeper grooves, or lock grooves, are machined into the top of the valve _____.A. faceB. lobeC. stemD. ring19. _____ Which of the following parts is a thin metal or plastic cover that is secured over the top of the cylinder head?A. Exhaust manifold.B. Valve cover.C. Intake manifold.D. Front cover.20. _____ A _____ is needed to turn the camshaft at one-half engine speed.A. camshaft driveB. camshaft lobeC. camshaft journalD. crank damperCritical Thinking1. Why is an automotive engine called a power plant?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2. How does an engine convert fuel into a useful form of energy?______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3. Name the four strokes of the four-stroke cycle used in an automotive engine._________________________________________________________________________________________________________________4. Define deck surfacewith regard to an automotive engine.___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________5. What is the function of the crankshaft flange?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website.52 Modern Automotive Technology Workbook6. Describe the purpose of an engine piston.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________7. Name the two types of piston rings and explain the function of each._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________8. What is the engine top end?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________9. What components normally make up an engine valve train?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________10. State the basic function of the engine valve train.___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________11. Where is an engine camshaft normally located?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________12. Explain the function of valve seals._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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Chapter 11 Engine Fundamentals 53Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website.Name _______________________________________________________________13. Explain the function of an engine exhaust manifold.____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________14. What parts are attached to the engine front end?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________15. Explain the purpose of an automotive engine’s crank damper.___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website.54 Modern Automotive Technology WorkbookNotes_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
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