In comparison to exhaust valves, intake...

Question 1 / 205eccefa1bacbc34ba4d4767b

Question 1 of 205eccefa1bacbc34ba4d4767b

In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low-alloy steels because __________.

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Question 1 of 20

5eccefa1bacbc34ba4d4767b

In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low-alloy steels because __________.

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🔍 Key Concepts

• differences in temperature and corrosion between intake and exhaust gas flows in a diesel engine • material selection for valve faces and seats under high heat and chemical attack • why low-alloy steel can be acceptable in cooler, less aggressive environments

💭 Think About

• Which valve (intake or exhaust) is exposed to the hottest, most chemically aggressive gases in the cylinder? • What is the main reason you might choose a more expensive, heat- and corrosion-resistant alloy for a component? • Looking at the answer choices, which ones talk about mechanical geometry or flow volume, and which ones talk about the gas environment and corrosion?

✅ Before You Answer

• Identify which side (intake vs exhaust) sees hot combustion and exhaust gases and which side only sees fresh air (or air-fuel mixture). • Ask yourself if self-centering or flow volume directly justify using a cheaper material like low-alloy steel. • Focus on the choice that links material selection to the absence or presence of hot, corrosive exhaust gases.

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Question 1 of 20

In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low-alloy steels because __________.

the beveled edges of the intake valves provide for self-centering during seating

intake valves utilize stellite-coated valve seat inserts which reduce wear

the effective volume of air passing through intake valves is less than the effective volume of air passing through exhaust valves

intake valves are not affected by the corrosive action of exhaust gases

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Question 1 / 205eccefa1bacbc34ba4d4767b

Question 1 of 205eccefa1bacbc34ba4d4767b

In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low-alloy steels because __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d4767b

In comparison to exhaust valves, intake valves of diesel engines may be fabricated from low-alloy steels because __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed