PADI IDC Theory: Equipment

It's easier than you think

PADI IDC Theory: Equipment. PADI Course Director Steve Prior explains why it’s easier than you think!
Lots of Practice Questions, Videos and Presentations
The Online course makes sure that nothing is left out. 
Steve takes you through every subject in an easy to follow process. 
Lot’s of questions, quizzes, Mock Exams to check your progress. 

PADI IDC Theory: Equipment - Regulators

The Basics

PADI IDC and IE Exam regulator questions often focus on either the first stage or the second stage

How it works

First Stage
The job of the first stage is to bring the high cylinder pressure down to intermediate pressure, which is the pressure that’s in all of the hoses, apart from the high pressure hose that leads to your submersible pressure gauge. 
Second Stage
This the part that you breathe from. It’s job is to bring the intermediate pressure down to ambient pressure.

This might help

First Stage
Questions range from DIN valves to Environmental seals. There are also questions about the mechanism of the first stage that can confuse people, because sometimes, there’s a question about a diaphragm valve or a piston valve. These valves can only be found in the first stage, so be careful and not confuse a diaphragm valve with the large diaphragm in the second stage. 
Second Stage
There are various questions about the second stage, ranging from a split mouthpiece causing water to creep in, through to where the second stage of an alternate air source should be.  This brings me to the next area that sometimes causes confusion. The ONLY thing that’s important with alternate air source is that it’s in the triangle. It doesn’t matter what colour it is, nor which side it comes from.

 

Test yourself with these PADI Exam questions on Equipment

PADI IDC Theory: Equipment - Cylinders

These questions are from our online Preparation Course. Please don’t over complicate Equipment questions. It’s easier than you think. More information here: PADI IDC Theory Preparation Course  Or sign up for a course here: 

The Basics

Cylinders are different sizes and made of different materials. Steel or Aluminium. They need to be regularly tested according to local law. 

This might help

Steel cylinders
These cylinders require you to wear less weight that aluminium ones because they displace less water and feel “heavier” in the water. 
Steel cylinders that bear a + sign from the last test can be overfilled by 10 per. cent.
Aluminium cylinders
Of course aluminium cylinders require you to wear more weight when you’re diving than you would with a steel cylinder. 
Routine Tests
Local law requires cylinders to have a visual test and a hydrostatic test. Visual testing involves a technician  removing the first stage and checking the walls for signs of damage. Hydrostatic testing involves immersing the cylinder and pressurising it with water. Providing measurements are within standards, the cylinder is then stamped and can be used for another period of time. 

Test yourself with these PADI Exam questions on Equipment

These questions are from our online Preparation Course.  It’s easier than you think. More information here: PADI IDC Theory Preparation Course  Or sign up for the course with the link below. The cost is £125 for one year access. 

PADI IDC Theory Preparation Course

Videos and Presentations
The PADI IDC Theory Preparation course has a lot more videos, presentations and guidance to help you prepare. 
Keep it simple!
Despite the course being friendly and simple, there is nothing missing. PADI Dive Theory, and PADI Standards are all fully covered. You’ll find no nasty surprises on your PADI IDC. 
Over 700 Questions
After each lesson, there are quiz questions where you can test your knowledge. In addition there are 10 mock theory exams. All with the same format and content to the final PADI exams that you’ll find on your course. 
More information PADI IDC Theory Preparation Course  or Sign up for the Course PADI IDC Theory Preparation Course

PADI IDC Theory Preparation Course
PADI IDC Prep Equipment

These videos are from our online Preparation Course. Please don’t over complicate Physics. It’s easier than you think. More information here: PADI IDC Theory Preparation Course  Or sign up for a course here: 

PADI IDC Physics

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