Chart Navigation & Plotting · Speed-Time-Distance — Time to Run
How long will it take to run 27 NM at a speed of 18 knots?
- A1 hour 30 minutes✓ Correct
- B1 hour 15 minutes
- C2 hours 00 minutes
- D0 hours 27 minutes
Explanation
Time = distance ÷ speed = 27 NM ÷ 18 kt = 1.5 hours = 1 hour 30 minutes.
Authority: Bowditch (Pub. No. 9), Speed-Time-Distance
Practice the full Chart Navigation & Plotting bank
Free spaced-repetition quizzing across 2190 USCG exam questions — it schedules your reviews so the ones you miss come back until they stick.
Related Chart Navigation & Plotting questions
- Speed-Time-Distance — Time to Run
At 10 knots, the time to run 25 nautical miles is:
- Speed-Time-Distance — Time to Run
How long will it take to run 24 nautical miles at a speed of 16 knots?
- Chart Basics
On a Mercator chart, one nautical mile is measured using the:
- Chart Basics
The principal advantage of the Mercator projection for navigation is that:
- Chart Basics
Charted depths (soundings) on a U.S. chart are referenced to which tidal datum?
- Chart Basics
Vertical clearances of bridges and overhead cables on a U.S. chart are normally referenced to: