Answers from questions from our Newsletter "Blowing Bubbles"
Select All That Apply
Correct Answers In Red
For the Open Water Diver:
1) An object is positively buoyant when:
a. It displaces a volume of water weighing less than its own weight.
b. It displaces a volume of water weighing more than its
own weight.
c. It displaces a volume of water weighing equal to its own weight.
2) You can prevent or control most dive problems underwater by:
a. Relaxing while you dive
b. Watching your air supply
c. Diving within your limitations
d. Maintaining a brisk pace
For the Advanced Open Water Diver:
3) How do you weight yourself for a deep dive?
a. the same as for a shallow dive in the same equipment
b. slightly heavy for an effortless descent
c. slightly underweight so you don’t have to ditch weights at the bottom
4) Patterns for underwater navigation include:
a. circle
b. rectangle/square
c. triangle
d. pentagon
e. out and back line
f. staircase
For the Rescue Diver:
5) You find the carotid pulse:
a. at the wrist
b. in the groove between the larynx and neck muscle
6) What are the four patterns that can be used when searching for a lost diver?
U-Pattern
Expanding Square
Circular
Surface Led
For all Divers:
7) After a dive you are in pressure group J. What will your new pressure group
be after a 32 minute surface interval?
Pressure Group E
8) Find the minimum surface interval. First dive is 60 feet/50 minutes. Second
is 50 feet/60 minutes.
1:26
9) Find the pressure group. First dive 50 feet/40 minutes. Surface interval 1
hour. Second dive 40 feet/60 minutes.
Pressure Group S
For the Nitrox Diver:
10) What is the adjusted no decompression limit for a second dive to 58 feet.
First dive with EANx32 for 30 minutes/65 feet and 1 hour surface interval.
72 Minutes
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since 4/19/01