Questions And 100% Verified Answers |
Latest 2025/ 2026 Update | Graded A+
The term gradient can be described as: - CORRECT ANSWER-The
difference between the internal partial pressure and the external partial
pressure of a gas
Which of the following overexpansion injuries can be characterized by
chest pain, breathing difficulties, weakness, and cyanosis (blueness) of
the lips and nail beds:
-A: bends
-B: Subcutaneous emphysema
-C: Mediastinal emphysema and Pneumothorax
-D: Rupture of the eardrum - CORRECT ANSWER-C
In air at 1 ata, the partial pressure of nitrogen is___, oxygen is_____.
,-A: .21/.79 ata
-B: 1.5/.8 ata
-C: .79/.21 ata
-D: .8/.4 ata - CORRECT ANSWER-C
Gas can enter the bloodstream and cause serious damage to the lungs
or even death by:
-A: ascending to fast
-B: holding your breath underwater
-C: diving with respiratory congestion
-D: all answers are correct - CORRECT ANSWER-D
The term No-decompression Limit is defined as:
Maximum time at _____ without having to perform a ______
decompression stop during the _____ - CORRECT ANSWER-depth,
mandatory, ascent
, To use a compass to navigate to a sighted object:
Point the compass toward the object, rotate the ____ until the ____
marks are over the magnetic needle, and follow the ____ line. -
CORRECT ANSWER-bezel, witness, lubber
A dive computer keeps track of a diver's nitrogen absorption levels so
that the diver can:
-A: Avoid an Arterial gas Embolism
-B: Stay within the no decompression limits on each dive
-C: dive deeper than 100 feet
-D: Make decompression dives - CORRECT ANSWER-B
You should perform a safety stop at 15 feet for 3 to 5 minutes on every
dive.
True
False - CORRECT ANSWER-True