PADI Underwater Navigation & Skills 2

Question 1

When using a compass underwater, what does 'reciprocal heading' mean?

Accepted Answer

The heading directly opposite your current bearing (180° away)

Answer

A reciprocal heading is exactly 180° opposite your outbound bearing, used to return to your starting point.

Question 2

You're navigating a square pattern and need to make four 90-degree turns. After your first right turn, which direction should your second turn be?

Accepted Answer

Right again

Answer

A square pattern requires four consecutive 90-degree turns in the same direction (all right or all left) to complete the square.

Question 3

What is the primary limitation of a magnetic compass when diving near certain underwater structures?

Accepted Answer

Metal objects and iron-rich rock can cause magnetic deviation

Answer

Ferrous metal structures such as shipwrecks or iron-rich volcanic rock can deflect a compass needle, causing inaccurate readings.

Question 4

During an underwater navigation exercise, your kick cycle count suggests you've traveled 30 meters, but your compass shows you've been swimming with current assistance. What should you do?

Accepted Answer

Adjust your estimated distance to account for the current's added push

Answer

Current assistance means you cover more distance per kick cycle, so your actual distance traveled is greater than the kick-count alone suggests.

Question 5

Which natural navigation cue is MOST reliable for maintaining a consistent heading in open water with good visibility?

Accepted Answer

Sun position and shadow patterns on the bottom

Answer

Sun angle and shadow patterns on the sandy bottom provide a consistent, broad reference for maintaining direction in clear, shallow water.

(PADI) Certified Professional Association of Diving Instructors Diver Practice Test

(PADI) Certified Professional Association of Diving Instructors Diver Practice Test

PADI Underwater Navigation & Skills 2