Estimated position, running fix and position fix

It is the maximum fixing interval between two fixes.

• Fix

• Position Fixing Interval

• Running Fix

• One Hour

What is the primary and secondary method of position fixing at open sea?

• Primary: GPS Fix

  Secondary: Celestial Fix

• Primary: Celestial Fix

  Secondary: GPS Fix

• Primary: Radar Fix

  Secondary: GPS Fix

• Primary: Visual Fix

  Secondary: GPS Fix

If there is a Radar conspicuous object, the primary method of fixing position is Radar Fix. What is secondary method?

• Visual

• Celestial

• GPS

• Echo sounder

If there are visible object or reference around the vicinity the primary method of fixing position is Visual. What is the secondary method?

• Radar fix

• GPS fix

• Celestial

• ECDIS

The most accurate method of fixing position is?

• Radar

• GPS

• Celestial

• Visual

It is the length or measurement travelled from one place to another.

• Speed

• Time

• Distance

• Knots

It is a DR position corrected for the effects of leeway, steering error, and current

• Estimated position

• Running Fix

• LOP

• Set & Drift

Advancing an earlier LOP to combine it with a current LOP.

• Estimated Position

• Transfer Fix

• Running Fix

• DR Fix

What is the minimum Line of Position needed in order to plot a Fix?

• Three

• One

• Two

• Four

        What is the main reason why we have to determine the Position Fixing Interval?

• To determine the exact or actual position at all times

• To avoid vessel running into danger during the interval between fixes

• To comply with the agreed passage plan

• To keep the course line at all times and avoid being off track