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What are the two dive flags - (answer)Recreational Diving and Alpha Flag
1982 - (answer)When did OSHA exempt scientific diving from commercial diving
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea
water is:
-A: 2 ata
-B:1 ata
-C: 4 ata
-D: 3 ata - (answer)A: 2 ata
What will the buoyancy of an object be (positive, neutral, or negative) if it
displaces an amount of water:
,a. more than its own weight?
b. less than its own weight?
c. equal to its own weight? - (answer)a. positive
b. negative
c. neutral
AAUS - (answer)American Academy of Underwater Sciences
Gauge pressure is defined as:
-A: Hydrostatic pressure minus 1 ata
-B: The pressure at the surface
-C: The depth reading on a gauge
-D: Absolute pressure minus 1 ata - (answer)D: Gauge pressure is defined as
Absolute pressure minus 1 ata
,What is purpose of first stage - (answer)to reduce cylinder pressure to immediate
pressure and keep that pressure as constant as possible
Define Scientific Diving - (answer)Diving performed solely as a necessary part of
a scientific, research, or educational activity by employees whose sole purpose for
diving is to perform scientific research tasks
When does squeeze in the ear occur - (answer)When the presure outside the ear is
greater than the pressure inside the ear
The first symptom of a sinus squeeze is usually:
-A: a dull pain deep within the head
-B: a sharp pain at the base of the neck
-C: a crushing pain high in the chest
-D: a sharp pain above the eyes - (answer)D: a sharp pain above the eyes
, What is the relationship between increasing and decreasing depth and water
pressure? - (answer)With increasing depth the water pressure increases.
With decreasing depth the water pressure decreases.
If you experience pain in the ear during descent:
-A: Stop the descent and ascend till the pain stops
-B: abort the dive
-C: place a finger in the ear canal and gently massage the ear until the pain ceases
-D: continue the descent while gently exhaling into the mask - (answer)A: Stop the
descent and ascend till the pain stops.
Body heat is lost at a rate of ___ than air. - (answer)25-30 times faster
What year was the petition by United Brotherhood Carpenters and Joiners of
America AFL-CIO with respect to diving operations filed? - (answer)1975