ADAPTING TO THE UNDERWATER WORLD
What glass should be used in the construction of a face mask? -
ANSWER ✔✔- Tempered glass
What maintenance is required immediately after using diving
equipment? - ANSWER ✔✔- It should be washed in fresh water
What causes atmospheric pressure at sea level? - ANSWER
✔✔- The weight of (mass) of air which makes up the
atmosphere
What is atmospheric pressure in a) Bar and b) Kg/cm2? -
ANSWER ✔✔- 1 bar or 1 kilogram per square cm (1kg/cm2)
What is the absolute pressure in bar at 40m? - ANSWER ✔✔- 5
bar
What happens to a volume of gas in an inverted bucket when
taken from the surface to 10m? - ANSWER ✔✔- Its volumed is
halved
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