If your vessel burns 8 tons of fuel per hour...

Question 1 / 205eccef9dbacbc34ba4d45ddd

Question 1 of 205eccef9dbacbc34ba4d45ddd

If your vessel burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 20 knots?

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Question 1 of 20

5eccef9dbacbc34ba4d45ddd

If your vessel burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 20 knots?

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🔍 Key Concepts

• Relationship between speed and fuel consumption for displacement vessels (fuel use ~ speed³) • How to set up a proportion using the cube of the speed ratio • Checking if the final fuel rate seems reasonable compared to the original 8 tons/hour

💭 Think About

• What happens to fuel consumption when speed increases from 15 to 20 knots—does it rise in a straight line, or faster than that? • How can you use the ratio (20/15) and a power (like squaring or cubing) to estimate the new fuel burn? • After you compute the new rate, is it just a little more than 8 tons/hour, or significantly more? What makes sense physically?

✅ Before You Answer

• Be sure you are using knots as speed consistently in your ratio (20/15). • Confirm that you apply the speed ratio to the power commonly used for fuel vs. speed on displacement hulls (not just first power). • Compare your final answer with 8 tons/hour and ask: Is this increase in fuel use plausible for a relatively small increase in speed?

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Question 1 of 20

If your vessel burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 20 knots?

11.7 tons

10.7 tons

19.0 tons

14.2 tons

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Question 1 / 205eccef9dbacbc34ba4d45ddd

Question 1 of 205eccef9dbacbc34ba4d45ddd

If your vessel burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 20 knots?

Back

Question 1 of 20

5eccef9dbacbc34ba4d45ddd

If your vessel burns 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 20 knots?

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