General Skills and Environment Flashcards
Your Skills as a Diver III
When making a Controlled Emergency Swimming Ascent (CESA) the diver should __________________________ to avoid a lung-expansion injury.
a) exhale forcefully
b) exhale lightly
c) exhale - making a continuous “ah” sound
d) “blow and go”
c) exhale - making a continuous “ah” sound
Your Skills as a Diver III
When making a Controlled Emergency Swimming Ascent, the diver should do which of the following in terms of his equipment?
a) Ditch his weight belt and remove his regulator mouthpiece.
b) Ditch his weight belt but retain his regulator mouthpiece.
c) Keep all equipment in place and retain his regulator.
d) Remove or retain what ever makes the ascent the easiest.
c) Keep all equipment in place and retain his regulator.
Your Skills as a Diver III
When making a Controlled Emergency Swimming Ascent, what should the diver do regarding his ascent rate?
a) Ascend at whatever rate is comfortable.
b) Because this is an emergency, ascend as fast as possible.
c) Ascend no faster than his slowest air bubbles.
d) Maintain a normal ascent rate (not in excess of 18 metres/60 feet per minute).
d) Maintain a normal ascent rate (not in excess of 18 metres/60 feet per minute).
Your Skills as a Diver II
Divers should always wear an amount of weight equal to 10% of their body weight plus 1 kilogram/3 pounds.
True
False
False
Your Skills as a Diver II
When conducting a buoyancy check at the surface, you should (choose all that apply)
a) fully inflate your BCD while breathing from your regulator.
b) relax, holding a normal breath in.
c) add or subtract weight until you float at eye level.
d) sink slowly when you exhale.
b) relax, holding a normal breath in.
c) add or subtract weight until you float at eye level.
d) sink slowly when you exhale.
Your Skills as a Diver I
A clenched fist brought toward the chest is a signal for:
a) “I am out of air”
b) “I am out of air and want to buddy breathe”
c) “I am low on air”
d) “I am low on air and want to use your alternate air source”
c) “I am low on air”
Your Skills as a Diver I
Your buddy gives you a “cut throat” sign followed by pointing to his mouth. What action should you take in this circumstance?
a) Immediately begin buddy breathing.
b) Immediately provide your alternate air source to him.
c) Check his SPG, then begin buddy breathing. If he experiences problems, then provide your alternate air source.
d) Check the depth — if it is 12 metres/40 feet or less, signal him to make an emergency swimming ascent.
b) Immediately provide your alternate air source to him.
Your Skills as a Diver I
You suddenly run out of air at 18 metres/60 feet. You notice your buddy is approximately 6 metres/20 feet away and not paying attention to you. What action should you take in this circumstance?
a) Swim to your buddy, get his attention and signal that you are out of air.
b) Swim to your buddy and immediately locate and secure his alternate air source, then signal you are out of air.
c) Make a Controlled Emergency Swimming Ascent.
d) Make a Buoyant Emergency Swimming Ascent.
b) Swim to your buddy and immediately locate and secure his alternate air source, then signal you are out of air.
Search and Recovery Diving
What factors determine the type of pattern to be used when conducting an underwater search? (choose all that apply)
a) Environmental conditions
b) Size of the object
c) Salt water versus fresh water
d) Surface support
a) Environmental conditions
b) Size of the object
Search and Recovery Diving
When working close to a shoreline, what naturally occurring phenomena can be used as aids to navigation? (choose all that apply)
a) Kelp forests
b) Sand ripples
c) Changes in water depth
d) Rock piles
b) Sand ripples
c) Changes in water depth
Underwater Navigation
Kick cycles and arm spans are methods of measuring distance underwater that do not require the use of a calibrated device.
True
False
True
Underwater Navigation
Which of these methods is most accurate for measuring distance underwater?
a) Kick cycles
b) Gas use
c) Arm spans
d) Time
c) Arm spans
Search and Recovery Diving
A diver is wearing a BCD with 18 kilograms/40 pounds of lift. He finds an anchor, but is unable to lift it unless he completely fills his BCD. What should the diver do in this circumstance?
a) Cautiously ascend holding the anchor with his BCD fully inflated.
b) Have his buddy put some air in his own vest and ascend with the anchor as a team – each with their vests partially inflated.
c) Leave the anchor on the bottom and return later with a lift bag.
d) Cautiously ascend with the anchor using the buoyancy of his BCD but with his buddy holding on to him in case of a problem.
c) Leave the anchor on the bottom and return later with a lift bag.
Night Diving
When night diving, ideally each diver should have which of these lights? (choose all that apply)
a) Camera strobe light
b) Chemical or marker light
c) Back up light
d) Primary light
b) Chemical or marker light
c) Back up light
d) Primary light
Night Diving
Although each diver should have a primary light, only one of the two buddies need to have the required backup lights when night diving.
True
False
False
