# PADI IDC Revision - RDP

### Test yourself with these questions

PADI IDC Revision – RDP Here are some typical PADI IDC physics questions (and answers) for you to try. Videos to help if you get stuck!

Take your time – good luck!

### PADI IDC Revision - RDP - Background and use

Test yourself with these questions. If you get stuck, all is explained in the video below from the PADI IDC Theory Preparation Course

#### PADI IDC Exam Questions

###### You’ve made a single dive at an altitude of 450 metres/1500 feet. What is the minimum time you are recommended to wait before flying?

###### 12 hours

###### The US Navy tables use a ______ compartment to control the off-gassing during the surface interval, whereas the RDP uses a _____ compartment to calculate nitrogen elimination during the interval.

###### 120 minute / 60 minute

###### The special rule for multiple repetitive dives (WXYZ rule) was developed to:

###### account for extended no-decompression bottom times at shallower depths.

###### Dive tables and computers track the theoretical amount of ______ dissolved in body tissues during and between dives.

###### nitrogen

###### A diver has completed a wreck dive to 29 metres / 95 feet with 24 minutes of bottom time. The diver conducted an emergency decompression stop for eight minutes. The soonest the diver could dive again is at least ___ hours and the soonest they could fly home is at least _____ hours.

###### 6 hours / 18 hours

When should a recreational diver re-enter the water to decompress?

###### Never

How did you get on? Check out this video for lots more information

### PADI RDP revision - background and design of RDP

### PADI IDC Revision - RDP - how to use eRDPml online calculator

OK, now try these questions. These ones are so important.

Usually Physics exams have over more questions about the effects of pressure than any other subject.

Again, if you get stuck, there’s a great video from the Online PADI IDC Theory preparation course

#### PADI IDC Exam Questions

What is the no decompression limit for a dive to 28 metres / 95 feet?

###### Metric: 23 minutes

Imperial: 22 minutes

###### A buddy team is planning four dives over one day. the first will be a multilevel dive with three levels:

METRIC: 35, 24 and 10 metres.

IMPERIAL: 115, 80 and 33 feet.

If the divers plan to stay the maximum time allowed at each depth, what would their minimum surface interval be for the second dive? (You may ignore ascent times, but now required safety stop time.)

###### 3 hours

###### What is a diver’s pressure group after a dive to 15 metres/49 feet for 1 hour 10 minutes?

###### Metric: W

Imperial: V

###### If a diver surfaces from a dive with a pressure group of J, what is the pressure group after 35 minutes on the surface?

Pressure Group E

What is the minimum surface interval required to make a dive to 30 metres/100 feet for 20 minutes, followed by a 23 metre / 80 feet dive for 19 minutes?

Metric: 1 hour

Imperial: 1 hour 4 minutes

A diver completes a 20 minute dive to 30 metres/100 feet, and after waiting for 50 minutes on the surface makes a second dive to 20 metres/70 feet for 22 minutes. What is the divers pressure group after the second dive?

###### Metric: R

Imperial S

How did you get on?

There’s a lot more information about how to use the tables and eRDPml in this video here:

and more help on RDP here

### PADI RDP revision - how to use RDP and eRDPml

**These questions and videos are from our online Preparation Course. Please don’t over complicate RDP questions, they’re easier than you think. More information here: PADI IDC Theory Preparation Course Or sign up for an online course here, where you and I can work together to improve your knowledge **

Don’t worry if you got a bit confused with these questions. There’s a lot more information explained the Online PADI IDC Theory Preparation Course.

#### Questions on other subjects

#### More PADI IDC Revision - RDP

Of course, PADI IDC Exams have many more questions than are shown here.

Join our Online Course. I’ll work with you to cover every subject that you’re likely to come across during your courses.

I’ll show you ways to gain knowledge, pass exams and even teach the topics to other people.

## Join the IDC Theory Preparation course

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**These questions and videos are from our online Preparation Course. Please don’t over complicate the eRDPml. It’s easier than you think. More information here: PADI IDC Theory Preparation Course Or sign up for an online course here, where you and I can work together to improve your knowledge **

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