Scuba Diving Underwater Navigation

Question 1

What is the most basic tool used for underwater navigation?

Accepted Answer

Underwater compass

Answer

An underwater compass is the fundamental tool for directional navigation, allowing divers to maintain a heading without visual surface references.

Question 2

What is the reciprocal bearing of 90 degrees?

Accepted Answer

270 degrees

Answer

A reciprocal bearing is exactly 180 degrees opposite — the reciprocal of 90° (East) is 270° (West), used to navigate back the way you came.

Question 3

What is the 'natural navigation' technique in scuba diving?

Accepted Answer

Using underwater landmarks, surge patterns, and sunlight direction to navigate

Answer

Natural navigation uses environmental cues such as coral formations, sand ripples, water current direction, and light patterns to determine position and heading.

Question 4

What does the term 'kick cycle' refer to in underwater navigation?

Accepted Answer

A unit used to estimate distance traveled underwater

Answer

A kick cycle is one complete flutter or frog kick used to estimate horizontal distance covered, helping divers gauge how far they have traveled.

Question 5

When navigating a square pattern underwater, what degree turn is made at each corner?

Accepted Answer

90 degrees

Answer

A square navigation pattern requires a 90-degree turn at each corner to create four equal sides, returning the diver to the starting point.

Scuba Diving Practice Test

Scuba Diving Practice Test

Scuba Diving Underwater Navigation