SSI Open Water Diver Exam questions and answers
One atmosphere of pressure is defined as:
a) Each 34 feet of depth in freshwater
b) each 33 ft. of depth in saltwater
c) 1 ata
d) All answers are correct. - ANSWER ==d) All answers are correct
The absolute pressure expressed in...
SSI Open Water Diver Exam questions and answers One atmosphere of pressure is defined as: a) Each 34 feet of depth in freshwater b) each 33 ft. of depth in saltwater c) 1 ata d) All answers are correct. - ANSWER ==d) All answers are correct The absolute pressure expressed in terms of atmospheres absolute at 33 ft. in sea water is: a) 1 ata b) 3 ata c) 2 ata d) 4 ata - ANSWER ==c) 2 ata Underwater, the bending of light rays causes objects to appear to be: a) closer b) the same as the surface c) At an angle consistent with the bend of the light d) Farther away - ANSWER ==a) Closer If you experience pain in your ears during descent: a) Place a finger in the ear canal and gently massage the ear until the pain ceases. b) Continue the descent while gently exhaling into the mask c) Abort the dive d) Stop the descent and ascend until the pain stops. - ANSWER ==d) Stop the descent and ascend until the pain stops. Sinus squeeze can be prevented by: a) Not diving with a cold b) Wearing earplugs c) Tilting the divers head back and forth d) The Valsalva technique - ANSWER ==a) Not diving with a cold Ear squeeze can be prevented by: a) Rotating the jaw, swallowing or Valsalva b) All answers are correct c) Never diving with a cold d) Relaxing - ANSWER ==b) All answers are correct The purpose of equalization is to: a) Remove all fluids from body air spaces b) Introduce additional air into body air spaces in response to increasing external pressure c) Ensure the uneven application of pressure between the water and air space in the body d) Prevent water from entering air spaces in the body - ANSWER ==b) Introduce additional air into body air spaces in response to increasing external pressure Desc ribing diving with the acronym SCUBA came from what event? a) The development of air pumps in the 19th century b) The development of the demand regulator in 1943 c) Post -WWII equipment refinements d) The invention of the diving helmet in circa 1800 - ANSWER ==b) The development of the demand regulator in 1943 The most efficient breathing pattern for scuba diving is: a) A deep balanced inhalation followed by a long balanced exhalation without any pause between inhale and exhale b) Rapid inhalation and exhalation cycles c) Long slow inhalation and faster exhalation d) Short shallow breaths - ANSWER ==A deep balanced inhalation followed by a long balanced exhalation without any pause between inhale and exhale Which of the following Total Diving System subsystems best describes the SCUBA unit? a) The information system b) The snorkeling system c) The buoyancy system d) The delivery system - ANSWER ==d) The delivery system Assuming a consistent air consum ption rate, diving at a pressure of 4 ata will use __ as much air as diving at 2 ata. a) 4 times b) 8 times c) 5 times d) 2 times - ANSWER ==d) 2 times An object immersed in water will be buoyed upward by a force ______ the weight of the water it displaces. a) 2 times b) equal to c) greater than d) less than - ANSWER ==b) equal to
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