Which statement correctly expresses D = S × T for distance in nautical miles, speed in knots, and time in hours?

Master the Navigation, Seamanship, and Shiphandling (NSS) – Officer of the Deck (OOD) Phase 2 Exam with engaging flashcards and multiple choice questions, complete with hints and explanations. Prepare comprehensively for your test!

Multiple Choice

Which statement correctly expresses D = S × T for distance in nautical miles, speed in knots, and time in hours?

Explanation:
Distance in nautical miles comes from multiplying speed in knots by time in hours. Since one knot is one nautical mile per hour, D = S × T with D in nautical miles, S in knots, and T in hours makes sense. If time were given in minutes, convert to hours first (T_hours = T_minutes / 60). The other statements aren’t expressing the required form in consistent units: using minutes would give nautical mile–minutes, using kilometers mixes units, and stating speed as D ÷ T expresses S, not D, even though it's mathematically related.

Distance in nautical miles comes from multiplying speed in knots by time in hours. Since one knot is one nautical mile per hour, D = S × T with D in nautical miles, S in knots, and T in hours makes sense. If time were given in minutes, convert to hours first (T_hours = T_minutes / 60). The other statements aren’t expressing the required form in consistent units: using minutes would give nautical mile–minutes, using kilometers mixes units, and stating speed as D ÷ T expresses S, not D, even though it's mathematically related.

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