SSI OPEN WATER EXAM PRACTICE
QUESTIONS AND ANSWER S
Question 1: 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
Question 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
CORRECT ANSWER: A
Question 3: The condition in which certain colors are
diminished as depth increases is called:
-A: Refraction
-B: Turbidity
-C: Diffusion
-D: Absorption
CORRECT ANSWER: D
Question 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
CORRECT ANSWER: C
Question 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
CORRECT ANSWER: D
Question 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
CORRECT ANSWER: D
Question 7: The event that led to the use of the acronym
SCUBA to describe diving was:
Development of what and when?