NAV3 QUIZ 2 (1373)

What is the primary purpose of dead reckoning in navigation?

• To determine position using external references

• To estimate the future position based on course and speed

• To adjust course based on environmental conditions

• To navigate using celestial bodies

Which of the following is not involved in calculating a dead reckoning position?

• Course

• Speed

• Time

• Wind direction

In dead reckoning, speed is typically measured in:

• Kilometers per hour

• Miles per hour

• Nautical miles per hour

• Feet per second

Which factor can significantly affect dead reckoning accuracy?

• Variation in fuel supply

• Environmental factors like wind and current

• Use of advanced GPS systems

• The size of the ship

When plotting a dead reckoning position on a chart, what is the most important factor?

• The size of the chart

• Accurate plotting tools

• The accuracy of speed measurements

• Position of celestial bodies

What is the estimated position (EP) in navigation?

• A dead reckoning position after adjusting for set and drift

• The final position at the end of a voyage

• A celestial fix of the ship's position

• A GPS-determined position

Set and drift refer to:

• The speed of the vessel over time

• The direction and speed of the current affecting the ship

• The position of stars relative to the ship

• The time elapsed between two fixes

Dead reckoning can be used as a backup when:

• GPS systems are unavailable

• The ship is within sight of land

• Celestial navigation is the primary method

• The vessel is in a harbor

The direction in which the current flows is known as:

• Drift

• Set

• Course

• Speed

To calculate the ship's dead reckoning position, which formula is typically used?

• Distance = Speed x Time

• Speed = Distance x Time

• Time = Distance / Speed

• Time = Speed x Distance