SSI Open Water Diver Final Exam - Questions With Complete Solutions

SSI Open Water Diver Final Exam - Questions
With Complete Solutions
Which of the statements concerning sound transmission underwater
is incorrect?

-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 Correct
Answer - C

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 Correct Answer - A

The condition in which certain colors are diminished as depth
increases is called:

-A: Refraction
-B: Turbidity
-C: Diffusion
-D: Absorption Correct Answer - D

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 Correct Answer - C

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 Correct Answer - D

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 Correct Answer - D

The event that led to the use of the acronym SCUBA to describe
diving was:

Development of what and when? Correct Answer - Demand
regulator in 1943

Ear squeeze can be prevented by

-A: Relaxing
-B: All answers are correct
-C: Never diving with a cold
-D: rotating the jaw, swallowing or Valsalva Correct Answer - B

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