SSI Open Water Diver Final Exam
Complete Questions and Guide Answers
100% Verified Graded A+
1. Which of the statements concerning sound transmission underwater is incor- rect?
-A: Sound will travel farther underwater then in air
-B: Divers find it difficult to locate the direction of a sound producing source
-C: Divers find it easy to talk to each other directly through water
-D: Sound travels four times faster underwater than in air:
Answer: C
2. 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
3. The condition in which certain colors are diminished as depth increases is called:
-A: Refraction
-B: Turbidity
-C: Diffusion
-D: Absorption:
Answer: D
4. Earplugs:
-A: Aid equalization of the middle of the ear
-B: Protect against cold
-C: Should never be worn while diving
-D: Protect ears from squeeze:
Answer: C
5. 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
6. Sinus squeeze can be prevented by:
-A: Valsalva technique
-B: Wearing earplugs
-C: Tilting the divers head back and forth
-D: Not diving with a cold:
Answer: D
7. The event that led to the use of the acronym SCUBA to describe diving was:
Development of what and when?:
Answer: Demand regulator in 1943
8. Ear squeeze can be prevented by
Complete Questions and Guide Answers
100% Verified Graded A+
1. Which of the statements concerning sound transmission underwater is incor- rect?
-A: Sound will travel farther underwater then in air
-B: Divers find it difficult to locate the direction of a sound producing source
-C: Divers find it easy to talk to each other directly through water
-D: Sound travels four times faster underwater than in air:
Answer: C
2. 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
3. The condition in which certain colors are diminished as depth increases is called:
-A: Refraction
-B: Turbidity
-C: Diffusion
-D: Absorption:
Answer: D
4. Earplugs:
-A: Aid equalization of the middle of the ear
-B: Protect against cold
-C: Should never be worn while diving
-D: Protect ears from squeeze:
Answer: C
5. 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
6. Sinus squeeze can be prevented by:
-A: Valsalva technique
-B: Wearing earplugs
-C: Tilting the divers head back and forth
-D: Not diving with a cold:
Answer: D
7. The event that led to the use of the acronym SCUBA to describe diving was:
Development of what and when?:
Answer: Demand regulator in 1943
8. Ear squeeze can be prevented by
