The relative air pressure in the inlet...

Question 1 / 205eccefa2bacbc34ba4d47a9d

Question 1 of 205eccefa2bacbc34ba4d47a9d

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually __________.

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Question 1 of 20

5eccefa2bacbc34ba4d47a9d

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually __________.

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🔍 Key Concepts

• Turbocharger flow path: exhaust gases drive the turbine, which drives the compressor to raise intake (inlet manifold) pressure • Pressure relationship between exhaust manifold (driving side) and air inlet manifold (driven/compressed side) in normal operation • Effect of engine speed and load on both exhaust and inlet manifold pressures

💭 Think About

• Think about what must be true for exhaust gas to keep flowing through the turbine and turning it – how does turbine inlet pressure compare with compressor outlet pressure? • Consider normal loaded operation of a turbocharged engine: is exhaust pressure usually higher, lower, or about the same as the boosted inlet air pressure? • For an engine slowing down, does turbo speed (and therefore boost pressure) increase or decrease compared to higher load/speed conditions?

✅ Before You Answer

• Make sure you compare average exhaust manifold pressure (before the turbine) with inlet manifold air pressure (after the compressor) at similar load conditions • Check whether pressure at the turbine wheel is the same as at the impeller (compressor wheel), or if one must be higher to drive the other • Verify whether reduced engine speed normally increases or decreases turbocharger boost pressure in basic diesel engine operation

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Question 1 of 20

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually __________.

greater than the average exhaust manifold pressure

less than the average exhaust manifold pressure

greater at the turbine wheel than at the impeller

greater at reduced engine speed

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Question 1 / 205eccefa2bacbc34ba4d47a9d

Question 1 of 205eccefa2bacbc34ba4d47a9d

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually __________.

Back

Question 1 of 20

5eccefa2bacbc34ba4d47a9d

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually __________.

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