Grapevine Scuba

TEST YOUR KNOWLEDGE
Instructions: Select the radio button next to the answer of your choice. If you make a mistake you can change it at any time before hitting the submit button. When you hit the submit button your quiz will be graded. The text boxes next to the questions will indicate if you answered incorrectly.

1. The NAUI Advanced Diver Course consists of at least 5 openwater dives.

A. True
B. False

2. Green discoloration on the first stage of a scuba regulator indicates:

A. Corrosion from a steel cylinder
B. Carbon graphite dust from the scuba air compressor
C. Air from an improperly maintained compressor
D. Water has most likely entered the first stage

3. Two benefits derived from using an electronic dive computer are:

A. Unlimited dive time and water temperature display.
B. They always prevent DCS and sound off when ascent rate is exceeded.
C. Unreliable time and depth information.
D. Acurate monitoring of ascent rate and, if executing a multi-level diving profile, avoidance of the maximum time/depth penelty.

4. The horizontal boundary between waters of differing salinity is defined as:

A. a thermocline
B. a halocline
C. a thermal zone
D. a reverse thermocline

5. A dive team wants to recover (lift) a 380 pound (dry weight) anchor from the bottom of the ocean. The anchor displaces 3 cubic feet of sea water. The bottom composition is flat and firm. How many lift bags, rated for 50 pounds of lift each, will it take to recover (lift) the anchor?

A. 3 bags
B. 4 bags
C. 5 bags
D. 6 bags

6. If a diver has a Surface Air Consumption rate of 30 psig per minute with an 80 cubic foot/3000 psig cylinder, the same cylinder will last approximately ______ minutes at a depth of 90 feet of sea water if the diver begins his/her ascent with 1000 psig remaining as a a safety measure?

A. 20
B. 22
C. 18
D. 15

7. If the elimination of gas is not fast enough to match a diver's ascent, the excessive supersaturation of gas in tissues may cause gas to come out of solution in the form of bubbles. This malady is called Arterial Gas Embolism.

A. True
B. False

8. Emergency treatment in the field for arterial gas embolism and decompression sickness includes:

A. Having the victim relax, discuss the incident with the victim's buddy, give the victim plenty of alcoholic fluids.
B. Having the victim breathe 100% oxygen, treat for psychological problems, initiate transport to a hospital.
C. Applying cold packs to the victim's chest and head, treat for shock, administer 100% oxygen.
D. Having the victim breathe 100% oxygen, maintain basic life support, treat for shock, initiate transport to a hospital with a hyperbaric chamber.

9. Which type of ascent should be used if a diver believes that he or she is incapable of swimming to the surface?

A. Emergency Swimming Ascent
B. Negative Ascent
C. Emergency Buoyant Ascent
D. Streamlined Ascent

10. A dive team conducting a night dive should have a total of how many lights (minimum) between them?

A. 2
B. 6
C. 5
D. 4

Make sure you have answered all of the questions then click on "Submit".