SSI SCUBA Open Water Diving Certification
UPDATED ACTUAL Exam Questions and
CORRECT Answers
The purpose of equalization is to - CORRECT ANSWER - Introduce additional air into
body air spaces in response to increasing external pressure
Body heat is lost ________ than in air - CORRECT ANSWER - 25 to 30 times faster
The absolute pressure expressed in terms of atmospheres absolute at 99 feet in salt water -
CORRECT ANSWER - 4 ata
One atmosphere of pressure is defined as - CORRECT ANSWER - - Each 34 feet of depth
in freshwater
- 1 ata
- Each 33 feet of depth in sea water
Describing diving with the acronym SCUBA came from what event? - CORRECT
ANSWER - The development of the demand regulator in 1943
Sinus squeeze can be prevented by - CORRECT ANSWER - Not diving with a cold
The greatest relative pressure change in sea water takes place between ___ and ___ feet -
CORRECT ANSWER - 0 and 33
Underwater, the bending of light rays causes objects to appear to be: - CORRECT
ANSWER - closer
Ear squeeze can be prevented by: - CORRECT ANSWER - - Relaxing
, - Never diving with a cold
- Rotating the jaw, swallowing, or Valsalva
Earplugs... - CORRECT ANSWER - should never been worn while diving
If you experience pain in your ears during descent: - CORRECT ANSWER - Stop the
descent and ascend until the pain stops
Which of the statements concerning sound transmission underwater is correct? - CORRECT
ANSWER - - Divers find it difficult to locate the direction of a sound producing source
- Sound will travel farther underwater than in air
- Sound travels four times faster underwater than in air
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is -
CORRECT ANSWER - 2 ata
If a flexible air-filled container has a volume of 40 cu ft on the surface, what would the volume
be at 99 feet in sea water? - CORRECT ANSWER - 10 cu ft
Gauge pressure is defined as: - CORRECT ANSWER - Absolute pressure minus one
The condition in which certain colors are diminished as depth increases is called: - CORRECT
ANSWER - Absorption
your Delivery system should be serviced and preformance checked: - CORRECT
ANSWER - every year
The purpose of a BC is to: - CORRECT ANSWER - Control ascent and descent rates,
maintain neutral buoyancy during the dive, provide surface flotation
UPDATED ACTUAL Exam Questions and
CORRECT Answers
The purpose of equalization is to - CORRECT ANSWER - Introduce additional air into
body air spaces in response to increasing external pressure
Body heat is lost ________ than in air - CORRECT ANSWER - 25 to 30 times faster
The absolute pressure expressed in terms of atmospheres absolute at 99 feet in salt water -
CORRECT ANSWER - 4 ata
One atmosphere of pressure is defined as - CORRECT ANSWER - - Each 34 feet of depth
in freshwater
- 1 ata
- Each 33 feet of depth in sea water
Describing diving with the acronym SCUBA came from what event? - CORRECT
ANSWER - The development of the demand regulator in 1943
Sinus squeeze can be prevented by - CORRECT ANSWER - Not diving with a cold
The greatest relative pressure change in sea water takes place between ___ and ___ feet -
CORRECT ANSWER - 0 and 33
Underwater, the bending of light rays causes objects to appear to be: - CORRECT
ANSWER - closer
Ear squeeze can be prevented by: - CORRECT ANSWER - - Relaxing
, - Never diving with a cold
- Rotating the jaw, swallowing, or Valsalva
Earplugs... - CORRECT ANSWER - should never been worn while diving
If you experience pain in your ears during descent: - CORRECT ANSWER - Stop the
descent and ascend until the pain stops
Which of the statements concerning sound transmission underwater is correct? - CORRECT
ANSWER - - Divers find it difficult to locate the direction of a sound producing source
- Sound will travel farther underwater than in air
- Sound travels four times faster underwater than in air
The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is -
CORRECT ANSWER - 2 ata
If a flexible air-filled container has a volume of 40 cu ft on the surface, what would the volume
be at 99 feet in sea water? - CORRECT ANSWER - 10 cu ft
Gauge pressure is defined as: - CORRECT ANSWER - Absolute pressure minus one
The condition in which certain colors are diminished as depth increases is called: - CORRECT
ANSWER - Absorption
your Delivery system should be serviced and preformance checked: - CORRECT
ANSWER - every year
The purpose of a BC is to: - CORRECT ANSWER - Control ascent and descent rates,
maintain neutral buoyancy during the dive, provide surface flotation
