Which is the major disadvantage of a...

Question 1 / 2066636eec28f7522a1c51c6aa

Question 1 of 2066636eec28f7522a1c51c6aa

Which is the major disadvantage of a low-speed diesel as compared to a steam main-propulsion system?

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Question 1 of 20

66636eec28f7522a1c51c6aa

Which is the major disadvantage of a low-speed diesel as compared to a steam main-propulsion system?

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🔍 Key Concepts

• Characteristics of low-speed diesel main propulsion (direct drive, rpm limits) • How minimum engine rpm affects a ship’s minimum safe speed • Typical advantages of low-speed diesels vs steam (fuel economy, efficiency, weight)

💭 Think About

• First, ask yourself: in normal practice, are low-speed diesels usually praised for good fuel economy or criticized for poor fuel economy? How does that affect choice D? • Think about which option describes something that is inherent to a low-speed diesel design (especially direct-drive to the propeller) rather than something that depends on added equipment like gearing or CPPs. • Consider how a direct-coupled low-speed diesel affects your ability to reduce ship’s speed in bad weather, congested waters, or while maneuvering. Which option fits that limitation best?

✅ Before You Answer

• Check which of the four choices contradicts what you know are common advantages of low-speed diesels (like high efficiency and relatively low fuel consumption). • Verify which items (controllable pitch propellers, reduction gears) are not typically required with a low-speed, direct-drive installation. • Focus on the choice that deals with a built-in operating limitation of low-speed diesels that would directly affect how slow the ship itself can safely go.

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Question 1 of 20

Which is the major disadvantage of a low-speed diesel as compared to a steam main-propulsion system?

The minimum speed for the engines that limits the minimum speed of the vessel

The low efficiency of the system when a controllable pitch propeller is used

The extra weight required for the diesel reduction gearing

The higher fuel consumption per SHP

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Question 1 / 2066636eec28f7522a1c51c6aa

Question 1 of 2066636eec28f7522a1c51c6aa

Which is the major disadvantage of a low-speed diesel as compared to a steam main-propulsion system?

Back

Question 1 of 20

66636eec28f7522a1c51c6aa

Which is the major disadvantage of a low-speed diesel as compared to a steam main-propulsion system?

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