PADI PADI Dive Planning & Dive Tables 2

Question 1

According to the PADI RDP, what happens if a diver exceeds the no-decompression limit (NDL)?

Accepted Answer

The dive becomes a decompression dive requiring a mandatory stop

Answer

Exceeding the NDL turns the dive into a decompression dive, requiring a mandatory decompression stop that recreational divers are not trained for.

Question 2

In PADI multi-level dive planning, why is it important to start at the deepest depth?

Accepted Answer

Deeper depths consume the NDL faster, so planning deep-to-shallow is safest

Answer

Starting at the deepest point and ascending gradually is the safest profile because it minimizes nitrogen absorption by moving to shallower depths over time.

Question 3

What does 'actual bottom time' refer to when using the PADI RDP?

Accepted Answer

Total elapsed time from descent to beginning the ascent

Answer

Actual bottom time is the total time from the start of descent until the diver begins the final ascent.

Question 4

When using the PADI RDP for a repetitive dive, what is Total Bottom Time (TBT)?

Accepted Answer

Residual Nitrogen Time plus Actual Bottom Time

Answer

Total Bottom Time equals Residual Nitrogen Time (RNT) added to the Actual Bottom Time (ABT) of the repetitive dive.

Question 5

Which condition would cause a diver to automatically start at pressure group Z on the RDP?

Accepted Answer

No conditions — Z is the maximum limit and requires a long surface interval

Answer

Pressure group Z represents the maximum residual nitrogen level; a diver reaching this group must wait until they drop to a lower group before diving again.

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

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

PADI PADI Dive Planning & Dive Tables 2