In order to keep excess oil from the intake...

Question 1 / 270705eccefa1bacbc34ba4d4754f

Question 1 of 270705eccefa1bacbc34ba4d4754f

In order to keep excess oil from the intake ports in two-stroke/cycle diesel engines, __________.

Question 1 of 27070

In order to keep excess oil from the intake ports in two-stroke/cycle diesel engines, __________.

🔍 Key Concepts

• Function of oil control (oil scraper) rings on diesel pistons • How oil is returned to the crankcase and kept off the cylinder ports in two-stroke engines • Relationship between piston position, ports, and ring grooves in a uniflow or loop-scavenged two-stroke diesel

💭 Think About

• Think about where the intake/scavenge ports are located in the cylinder and what parts of the piston move past them. • Which ring position (high, middle, or low on the piston) will be most effective at scraping excess oil down before it can reach the ports? • Which option focuses on location of oil rings rather than ring material or ring width?

✅ Before You Answer

• Identify which choice deals specifically with oil ring location rather than ring type or material. • Visualize the relative height of the ports versus the piston skirt and pin — where must the oil ring sit to intercept oil before it reaches the ports? • Ask: which configuration best helps scrape oil down and away from the port openings during the stroke?

Question 1 of 27070

In order to keep excess oil from the intake ports in two-stroke/cycle diesel engines, __________.

wide compression rings are used

oil rings are located above the piston pin

dense chromium plating is used on all piston rings

oil rings are located near the bottom of the piston skirt

Question 1 / 270705eccefa1bacbc34ba4d4754f

Question 1 of 270705eccefa1bacbc34ba4d4754f

In order to keep excess oil from the intake ports in two-stroke/cycle diesel engines, __________.

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Question 1 of 27070

In order to keep excess oil from the intake ports in two-stroke/cycle diesel engines, __________.