At 0748, you change course to 160°T, speed...

Question 1 / 2707066636eea28f7522a1c51a8f4

Question 1 of 2707066636eea28f7522a1c51a8f4

At 0748, you change course to 160°T, speed 10 knots. At what time will you cross the 120-foot curve the first time?

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Question 1 of 27070

Q

At 0748, you change course to 160°T, speed 10 knots. At what time will you cross the 120-foot curve the first time?

🔍 Key Concepts

• Speed-Time-Distance relationship: how far you travel at 10 knots in a given number of minutes • Reading soundings/contours on the chart: how a 120-foot depth curve crosses your track line • Time of course change vs. ETA to a point: measuring time from 0748 to when your track meets the 120-foot curve

💭 Think About

• On your chart, where does your new course of 160°T first intersect the 120-foot depth curve after 0748? • Once you know the distance from the course-change point to that intersection, how many minutes does it take to travel that distance at 10 knots? • Which answer choice matches 0748 plus that running time most closely?

✅ Before You Answer

• Be sure you are using the first intersection of your 160°T track with the 120-foot curve, not any later crossing. • Convert distance to time correctly using Speed = Distance / Time and keep units consistent (nautical miles and hours/minutes). • Double-check that you are timing from 0748 (the course change time), not from any earlier or later fix.

Question 1 of 27070

Q

At 0748, you change course to 160°T, speed 10 knots. At what time will you cross the 120-foot curve the first time?

A

0808

B

0754

C

0804

D

0800

Question 1 / 2707066636eea28f7522a1c51a8f4

Question 1 of 2707066636eea28f7522a1c51a8f4

At 0748, you change course to 160°T, speed 10 knots. At what time will you cross the 120-foot curve the first time?

Back

Question 1 of 27070

Q

At 0748, you change course to 160°T, speed 10 knots. At what time will you cross the 120-foot curve the first time?

🔍 Key Concepts

• Speed-Time-Distance relationship: how far you travel at 10 knots in a given number of minutes • Reading soundings/contours on the chart: how a 120-foot depth curve crosses your track line • Time of course change vs. ETA to a point: measuring time from 0748 to when your track meets the 120-foot curve

💭 Think About

• On your chart, where does your new course of 160°T first intersect the 120-foot depth curve after 0748? • Once you know the distance from the course-change point to that intersection, how many minutes does it take to travel that distance at 10 knots? • Which answer choice matches 0748 plus that running time most closely?

✅ Before You Answer

• Be sure you are using the first intersection of your 160°T track with the 120-foot curve, not any later crossing. • Convert distance to time correctly using Speed = Distance / Time and keep units consistent (nautical miles and hours/minutes). • Double-check that you are timing from 0748 (the course change time), not from any earlier or later fix.