Question

which of the following is not a basic lookout search?

a) surface
b) horizon
c) low sky
d) high sky

Explanation:

Identify standard lookout search sectors

Standard naval lookout procedures define three basic types of searches:

1. Surface search (from the ship's side to the horizon)
2. Sky search, which is divided into:

• Low sky (horizon to \(20^\circ\) above the horizon)
• High sky (\(20^\circ\) above the horizon to the zenith)

Determine the incorrect option

The term "Horizon" is a boundary line used to divide the surface and sky sectors, but it is not classified as a distinct, standalone basic lookout search.

Answer:

• A) Surface
• B) Horizon (Correct answer)
• C) Low sky
• D) High sky