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To equalize my ears, I
blow gently against pinched nostrils.
I should equalize
early and often, before I feel discomfort.
If I can’t equalize, I should
stop descending, signal my buddy, ascend slightly and try again.
Continuing to descend without equalizing can cause injury (True/False)
True
While descending, to properly control my buoyancy, I should add air to my BCD
in small amounts frequently.
When there is a current during the dive on the bottom, the general rule is to swim
into the current.
The most important rule in scuba diving is to
breathe continuously and never hold my breath.
If I disregard the most important rule in scuba diving, I may suffer
serious lung overexpansion injuries.
My buddy and I are PADI Advanced Open Water Divers diving at 20 metres/66 feet. Assuming the same breathing rate, our air supply will last ____ as long as at the surface.
one-third
Underwater, I should breathe
slowly, deeply and continuously.
If I begin to breathe hard and feel like I can’t get enough air from my regulator, I should
stop, hold on to something and rest until normal breathing resumes.
Boats are supposed to stay about ________ from my dive flag if no other laws/regulations apply, but I shouldn’t assume boaters see or recognize my flag.
30 to 60 metres/100 to 200 feet
To reduce the risk of being hit by a boat because the driver can’t see us, we should avoid swimming just below the surface (True/False).
True
If the boat engine isn’t running, we can get near the propeller if necessary (True/False).
False.
If any aspect of a dive, including my assessment of the environment, causes me significant concern or anxiety, I should
not dive.
Ultimately, I am responsible for my own safety while diving and must make the final decision to dive (True/False).
True
An overhead environment is an environment in which I cannot swim straight up to the surface (True/False).
True
If I’m not warm enough during a dive, I should end the dive and use more exposure protection the next time in water the same temperature (True/False).
True
If I begin to shiver uncontrollably, I should
end the dive immediately, dry off and seek warmth.
The best way to get an exposure suit that fits properly, is comfortable and appropriate for the water where I’ll be diving, is to have a professional at my local PADI Resort or Dive Center help me (True/False).
True
When diving from a boat in a current, I may use a __________ line to reach the front of the boat.
swim
If I surface away from a boat in a moderate current, I should
swim across the current to the trail line.
If I get carried past the boat by a current and cannot reach the trail line, I should
establish buoyancy and signal the crew to pick me up.
When diving, I should have either a visual surface signaling device or an audible signaling device (True/False).
False
If I surface and the boat is not in sight, I should establish buoyancy, stay with my buddy and deploy my surface signaling devices (True/False).
True
A dive boat’s roll call or other accounting system is important for my safety, because it makes sure all divers are aboard before leaving the site (Tru/eFalse).
True
Dive computers provide no stop (no decompression) information based on
mathematical models that work for most people most of the time.
Failing to take my computer on every dive, sharing it, or turning it off between dives may increase
my risk of DCS.
What are the six guidelines for diving with your computer
- Stay well within your computer’s limits.
- Dive the plan.
- Follow the most conservative computer, yours or your buddy’s.
- Watch your SPG.
- Start at the deepest depth and progress shallower.
- Ascend slowly and make a safety stop.
As I descend, my computer shows a ______ no stop (no decompression) time. As I ascend, it shows a _______ no stop (no decompression) time.
shorter, longer
My no stop (no decompression) time for a repetitive dive is shorter because my computer is accounting for________.
residual nitrogen
According to the guidelines for diving with a computer, when making several dives, make the ________ dive first, with each dive progressively _______.
deepest, shallower