lesson 2


1. The test of cylinder consists of checking inside and outside for corrosion and pressure resistance test using pressure of ________ higher than in normal use

A floating buoy marks the presence of divers underwater. In some countries dive law requires ______________ flag known as an “A FLAG”

3. The regulator enables the diver to breathe underwater. This part the equipment allows _________________.
4. The “Octopus” It is fixed to _____________________ of the first stage through a hose than the normal one.
5. The pressure gauge shows the level of pressure in the ____________
6. The BCD is used to_____________________
7. Knifes must be used ________________________.

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