Underwater - Study guides, Class notes & Summaries

SSI Open Water Exam With Correct Solutions 2024 Which of the statements concerning sound transmission underwater is incorrect? -Sound will travel farther underwater then in air -Divers find it difficult to locate the direction of a sound producing source -Divers find it easy to talk to each other directly through water -Sound travels four times faster underwater than in air - correct answer.-Divers find it easy to talk to each other directly through water The absolu...

SCUBA - Answer- Self contained underwater breathing apparatus What is the pressure change for each 10m/33ft of depth change? - Answer- 1 bar/1 ata/1 atmosphere What is the relationship between my depth in water and the pressure? - Answer- The deeper you go in water, the more the pressure increases Pressure is expressed as the weight of air What is the relationship between pressure, and the volume and the density of air? - Answer- As pressure increases, the gas volume decreases and the ...

SCUBA correct answersSelf contained underwater breathing apparatus What is the pressure change for each 10m/33ft of depth change? correct answers1 bar/1 ata/1 atmosphere What is the relationship between my depth in water and the pressure? correct answersThe deeper you go in water, the more the pressure increases Pressure is expressed as the weight of air What is the relationship between pressure, and the volume and the density of air? correct answersAs pressure increases, the gas volum...

True or false: The route to return to the straight point, known as the square course, is 180 degrees from, or directly opposite the initial course. - ️️False True or False: It is far too difficult for divers to measure distance underwater. - ️️False True or False: Success in underwater navigation relies completely on constant practice and paying attention to the surroundings. - ️️True True or False: There are two main categories of underwater navigation that a diver needs to...

SSI Open Water Diver Exam Questions and Answers All Correct 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 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 2 ata Underwater, the bending of light rays causes objects ...

There are six conductors in a race way connected to 75° C rated circuit breaker. Each wire has a 70 amp load using THHM conductors. The minimum size conductors used our #_________AWG - 4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures - 3 A 1 inch conduit contains three wire circuits or a phase system. All conductors are number 10 TW. Each circuit consist of two phase conductors and one grounding conductor and one equipment grounding conduct...

SDI Chapter One: The Underwater Environment Exam Questions & Answers. What does "SCUBA" stand for in scuba diving? - CORRECT ANSWER It stands for self-contained underwater breathing apparatus. List the three most important scuba diving changes that occurred in the 1950s. - CORRECT ANSWER The three most important changes were dive tables, personal dive computers (PDC), and enhanced diving equipment. Name three different devices that modern dive computers replace. - CORRECT ANSWER Mod...

NEC Exam prep questions and answers, graded A+ There are six conductors in a raceway connected to 75 degree Celsius rated breakers. Each wire has a 70 amp load using THHN conductors. The minimum size conductors used are #_________AWG. A. 4 B. 6 C. 8 D. 10 A. #4 60 degree column (110.14(C)) adjust from 90 degree column 95 x .8 = 76a Thermal insulation shall not be installed within __________ inches of recessed fixtures. A. 1/2 B. 3/4 C. 2 D. 3 D. 3 410.116(B) Brainpower Read ...

PADI Open Water 2023 Exam Questions with All Correct Answers What is the most important rule of scuba diving? - ANSWER Do not hold your breath Breathe continuously What are the consequences of breaking the most important rule in scuba diving? - ANSWER Lung over expansion severe injuries, death What is a reverse block? - ANSWER pain and discomfort caused by expanding air trapped inside an air space during ascent What should you do if you feel discomfort during a...

2024 PADI Divemaster Exam Questions And Answers (Updated And Verified) True or False: Dive operations have dress codes because they improve customer perceptions of the staff's professionalism and the operation's credibility. - answerTrue - Customers perceive dive pros who dress and act like professionals to have more credibility. Role-model dress and conduct gain respect and trust. What are characteristics of a good role-model PADI Divemaster? (Choose all that apply): 1. Excellent dive...