PADI IDC Theory Review - (General Skills & Environment) || with A+ Guaranteed Solutions.
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PADI IDC Theory
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PADI IDC Theory
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" correct answers c. exhale, making a continuous ah sound.
When making a Con...
PADI IDC Theory Review - (General Skills & Environment)
|| with A+ Guaranteed Solutions.
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" correct answers c. exhale, making a continuous ah sound.
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. correct answers c. Keep all
equipment in place and retain his regulator.
True or False
Divers should always wear an amount of weight equal to 10% of their body weight plus 3lbs.
correct answers False, There are numerous rules divers have tried to apply in order to estimate
the amount of weight that should be worn. Nothing is set in stone.
What technique can a diver use to quickly determine proper weighting while still at the surface?
correct answers Eye level normal breath, exhale and you sink.
A clenched fist brought toward the chest is a signal for:
a. I am out of air
b. I am out of air and wat to buddy breath
c.I am low on air
I am low on air and wat to use your alternate air source. correct answers c. I am low on air.
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 40 feet or less, signal him to make an emergency swimming ascent.
correct answers b. Immediately provide your alternate air source to him.
you suddenly run out of air at 60ft. you notice your buddy is approximately 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. correct answers b.Swim to your buddy and
immediately locate and secure his alternate air source, then singal you are out of air.
List 2 factors that determine the type of pattern to be used when conducting an underwater
search. correct answers The environmental conditions present and the size of the object. to be
located.
When working close to a shoreline, what 2 naturally occurring phenomena can be used as aids to
navigation? correct answers Ripples and water depth.
List 2 methods of measuring distance underwater that do not require the use of a calibrated
device. correct answers Kick cycles and arm spans
Which of these methods is most accurate? correct answers Arm Spans
A diver is wearing a BCD with 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. correct answers c. Leave the anchor on the bottom an return later.
When night diving, one of the most important contingencies you must plan for is "what happens
if my light goes out" how should divers plan for this situation? correct answers It is
recommended that divers enter the water for a night dive with three essential parts to their
underwater lighting system. a. A primary light. Should be 6v and light up with wide angle of
coverage. 2. A backup light. This should be small, but easily accessible and have sufficient
lighting capability to serve as a primary light. 3 A chemical glow light.
True or False
Although each diver should have a primary light, only one of the two buddies need to have the
required backup lights when night diving. correct answers False
No matter how well you plan a dive, buddy team separation can always occur.
Most dive tables, including the Recreational Dive Planner, were not designed for use above an
altitude of ______________ft. correct answers 1000 ft.
Special procedures are required when diving at an altitude because:
a. the percentage of nitrogen is increased.
b. the percentage of nitrogen is decreased since the ambient pressure is reduced.
c. the partial pressure of nitrogen is increased.
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