1 Automotive Lubrication System Questions and Answers 100 % Pass What does the term "friction" refer to in mechanical systems? ✔✔It describes the resistance encountered when two dry surfaces slide against each other. How can lubrication be defined in the con text of machinery? ✔✔Lubrication involves reducing friction by introducing a slick substance between moving surfaces. What are the main roles of engine oil? ✔✔Engine oil facilitates easy engine start -up, lubricates moving parts, safeguards against rust and corrosion, cleans engine components, cools the engine, seals in combustion pressure, prevents foam formation, and enhances fuel efficiency. What does an oil film do in an engine? ✔✔It creates a thin layer between metal surfaces to prevent direct metal -to-metal contact. What role does the Society of Automotive Engineers (SAE) play in relation to engine oils? 2 ✔✔SAE sets standards for oil viscosity ranges, such as SAE 5W -30. How is viscosity defined in terms of oil? ✔✔Viscosity measures the resistance of an oil to flow. What function does the American Petroleum Institute (API) serve? ✔✔API categorizes engine oils, with designations such as S for spark -ignition engines and C for compression -ignition engines. What is multi -viscosity oil, and why is it im portant? ✔✔Multi -viscosity oil maintains its flow properties across different temperatures, making it versatile for varying conditions. What does the viscosity index indicate? ✔✔The viscosity index assesses how much an oil's viscosity changes wi th temperature fluctuations. Describe how splash lubrication works.
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Automotive Lubrication System Questions and Answers 100% Pass
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Automotive Lubrication System Questions and Answers 100% Pass What does the term "friction" refer to in mechanical systems? It describes the resistance encountered when two dry surfaces slide against each other. How can lubrication be defined in the context of machinery? Lubrication involves reducing friction by introducing a slick substance between moving surfaces. What are the main roles of engine oil? Engine oil facilitates easy engine start-up, lubricates moving parts, safeguards against rust and corrosion, cleans engine components, cools the engine, seals in combustion pressure, prevents foam formation, and enhances fuel efficiency. What does an oil film do in an engine? It creates a thin layer between metal surfaces to prevent direct metal-to-metal contact. What role does the Society of Automotive Engineers (SAE) play in relation to engine oils? 2 SAE sets standards for oil viscosity ranges, such as SAE 5W-30. How is viscosity defined in terms of oil? Viscosity measures the resistance of an oil to flow. What function does the American Petroleum Institute (API) serve? API categorizes engine oils, with designations such as S for spark-ignition engines and C for compression-ignition engines. What is multi-viscosity oil, and why is it important? Multi-viscosity oil maintains its flow properties across different temperatures, making it versatile for varying conditions. What does the viscosity index indicate? The viscosity index assesses how much an oil's viscosity changes with temperature fluctuations. Describe how splash lubrication works. 3 In splash lubrication, oil is picked up by a rotating component and scattered onto various engine parts. What is Babbitt metal, and what is its purpose? Babbitt is an alloy made from tin, copper,
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