I should not turn off a dive computer between dives, because

1. Why shouldn't you turn off a dive computer between dives?
2. When using the dive computer you should ascend go up no faster than?
3. What is the first step in setting up and using my dive computer?
4. Should you accidentally exceed your dive computers no decompression limit?
5. What causes narcosis?
6. How fast should you ascend when diving?
7. What is the no decompression limit or NDL?
8. What is a safety stop in diving?
9. What is the first thing I should do with an injured diver at the surface?
10. When planning a dive with a computer I use the plan?
11. When making a series of dives should you do your first?
12. Does scuba diving affect sperm?
13. Why does Scuba make you sleepy?
14. Can you scuba dive if you smoke?

Why shouldn't you turn off a dive computer between dives?

Don't turn your computer off between dives.

Most won't let you, but if you take out the battery or shut the computer down, it loses its memory of your previous dives and your residual nitrogen. You'll have to allow all residual nitrogen to leave your body before resuming use of the computer.

When using the dive computer you should ascend go up no faster than?

A diver should ascend most slowly from his safety stop to the surface, even more slowly than 30 feet per a minute. Nitrogen in a diver's body will expand most quickly during the final ascent, and allowing his body additional time to eliminate this nitrogen will further reduce the diver's risk of decompression sickness.

What is the first step in setting up and using my dive computer?

The first step in using your dive computer is ❑ setting the time and date. reading the manufacturer's instructions. calibrating it for enriched air nitrox. setting it for fresh or salt water.

Should you accidentally exceed your dive computers no decompression limit?

As a recreational diver, you should never plan to exceed, or even dive right up to, the no-decompression limits), but if you accidentally find yourself past your dive time or maximum depth and running to deco, it's good to know what to do.

What causes narcosis?

The cause of narcosis is related to the increased solubility of gases in body tissues, as a result of the elevated pressures at depth (Henry's law). Modern theories have suggested that inert gases dissolving in the lipid bilayer of cell membranes cause narcosis.

How fast should you ascend when diving?

You should never exceed an ascent rate of 10m/minute when diving shallower than about 30m. . An ascent rate of 5-6 metres per minute is recommended in the last 10m of ascent. Complete safety stops on all dives that exceed 10m depth. Safety stops assist with reduction of excess nitrogen, which reduces the risk of DCI.

What is the no decompression limit or NDL?

The no decompression limit (NDL) is the maximum allowable dive time that you can remain at a specific depth and ascend directly to the surface without requiring staged decompression stops on the way up. Remember the higher the partial pressure of nitrogen (ppN₂), the shorter the dive time (NDL).

What is a safety stop in diving?

Make a Safety Stop

Divers should make a safety stop at the end of every dive at a depth of 15 feet for three to five minutes. Safety stop diving gives your body extra time to release excess nitrogen that builds up in your system during the dive.

What is the first thing I should do with an injured diver at the surface?

What is the first thing you should do with an injured diver at the surface? Make the diver float, and check to see if the diver is breathing.

When planning a dive with a computer I use the plan?

Refer: Using Dive Computers and Tables I – Planning Dives with Your Computer. With most dive computers, you scroll depths in 3meters increments, displaying maximum time allowed per depth. Thus, you plan dives with your dive computer by activating it and scrolling the no stop limits.

When making a series of dives should you do your first?

For example, if you do a dive to 18 meters (60 feet), but spend most of the time at 12 meters (40 feet), you must consider the dive to be an 18 meter (60 foot) dive. Always make your deepest dive first when making a series of dives. Plan each of your repetitive dives to a shallower depth than your previous dive.

Does scuba diving affect sperm?

Abstract. Diving is associated with both acute and long-term effects in several organ systems. Reduced semen quality after extreme diving and a reduced proportion of males in the offspring of divers have previously been reported.

Why does Scuba make you sleepy?

A very significant factor in how tired you may feel after a dive is the water's cooling effect on your body. Water conducts heat from your body 20 times faster than air does. ... The cooler the water, the more energy you will use and likely the more tired you will feel afterward.

Can you scuba dive if you smoke?

What kinds of problems can I expect? A: The bottom line: Smoking and diving is a bad combination. Most of the risks associated with smoking and diving are related to long-term usage--the chronic lung disease that smoking produces over many years. The emphysema that is caused can produce air-filled dilations.