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. - ANS 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 ...
SSI OPEN WATER DIVER COMPLETE EXAM PARCTICE TEST QUESTIONS AND ANSWERS 2023 NEW SOLUTION GUIDE 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. - ANS 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 - ANS 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 - ANS 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 EXAM c) Abort the dive d) Stop the descent and ascend until the pain stops. - ANS Stop the descent and ascend unt il 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 - ANS Not diving with a cold Ear squeeze can be prevented by: a) Rotating the ja w, swallowing or Valsalva b) All answers are correct c) Never diving with a cold d) Relaxing - ANS 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 - ANS Introduce ad ditional air into body air spaces in response to increasing external pressure Describing 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 EXAM d) The invention of the diving helmet in circa 1800 - ANS 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 exha lation without any pause between inhale and exhale b) Rapid inhalation and exhalation cycles c) Long slow inhalation and faster exhalation d) Short shallow breaths - ANS A deep balanced inhalation followed by a long balanced 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 - ANS The delivery system Assuming a consistent air consumption 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 - ANS 2 times An object immersed in water wi ll 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 - ANS equal to EXAM
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller BestKey. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.39. You're not tied to anything after your purchase.
