ESWS Navigation – Enlisted Surface Warfare Specialist Study Guide &
Qualification Prep
What is the LOP? - correct answer ✔✔Line of Position
How many LOPs constitute a fix? - correct answer ✔✔Two
What flag do you fly as you come alongside a ship during an UNREP? - correct answer
✔✔Romeo
What navigation weather equipment measures air temperature?
Where is it? - correct answer ✔✔Psychrometer
Port bridge wing
What navigation equipment is used to see bearings on visual navigation aids? - correct answer
✔✔Telescopic alidade or bearing circle, pelorus
When you see a navigation aid on the horizon, you should inform the navigation team, and have
them do what? - correct answer ✔✔Compare it to the chart
If a contact has constant bearing and the range is decreasing... - correct answer ✔✔A risk of
collision exists!
What navigation equipment is used by the conn to see left or right bearing drift? - correct
answer ✔✔Bearing circle or telescopic adilade
, What navigation system is used at the chart table to plot LOP's and fix the ships position? -
correct answer ✔✔VMS - Voyage Management System
What does ECDS-N stand for? - correct answer ✔✔Electronic Chart Display System - Navy
What is the definition of a chart? - correct answer ✔✔A nautical map drawn to accurate scale,
to depict navigation and topographical aids of an area of interest)
What four types of navigation are used? - correct answer ✔✔1. GPS
2. Visual
3. Radar
4. Celestial
What book is used to determine sunrise, sunset, moonrise and moonset?
What is the computer's name? - correct answer ✔✔Nautical almanac
Stella
What flag is used inport for divers? - correct answer ✔✔Code Alpha
What flag is flow for HERO condition? - correct answer ✔✔Lima
What flag is flown for personnel aloft? - correct answer ✔✔Kilo
What flag is flown if a vessel comes alongside to moor? - correct answer ✔✔India
Qualification Prep
What is the LOP? - correct answer ✔✔Line of Position
How many LOPs constitute a fix? - correct answer ✔✔Two
What flag do you fly as you come alongside a ship during an UNREP? - correct answer
✔✔Romeo
What navigation weather equipment measures air temperature?
Where is it? - correct answer ✔✔Psychrometer
Port bridge wing
What navigation equipment is used to see bearings on visual navigation aids? - correct answer
✔✔Telescopic alidade or bearing circle, pelorus
When you see a navigation aid on the horizon, you should inform the navigation team, and have
them do what? - correct answer ✔✔Compare it to the chart
If a contact has constant bearing and the range is decreasing... - correct answer ✔✔A risk of
collision exists!
What navigation equipment is used by the conn to see left or right bearing drift? - correct
answer ✔✔Bearing circle or telescopic adilade
, What navigation system is used at the chart table to plot LOP's and fix the ships position? -
correct answer ✔✔VMS - Voyage Management System
What does ECDS-N stand for? - correct answer ✔✔Electronic Chart Display System - Navy
What is the definition of a chart? - correct answer ✔✔A nautical map drawn to accurate scale,
to depict navigation and topographical aids of an area of interest)
What four types of navigation are used? - correct answer ✔✔1. GPS
2. Visual
3. Radar
4. Celestial
What book is used to determine sunrise, sunset, moonrise and moonset?
What is the computer's name? - correct answer ✔✔Nautical almanac
Stella
What flag is used inport for divers? - correct answer ✔✔Code Alpha
What flag is flow for HERO condition? - correct answer ✔✔Lima
What flag is flown for personnel aloft? - correct answer ✔✔Kilo
What flag is flown if a vessel comes alongside to moor? - correct answer ✔✔India
