Scuba Diving Safety and Practices, Exams of Water and Wastewater Engineering

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SSI Final Exam with complete solutions The |event |that |led |to |the |use |of |the |acronym |SCUBA |to |describe |diving |was: A. |Post-WWII |equipment |refinements B. |The |invention |of |the |diving |helmet |in |circa |1800 C. |The |development |of |the |demand |regulator |in |1943 D. |The |development |of |air |pumps |in |the |19th |century |- |correct |answer-C. |The |development |of |the |demand |regulator |in |1943 Absolute |pressure |is |defined |as: A. |The |pressure |at |the |surface |plus |1 |ata B. |The |weight |of |the |water |that |surrounds |the |diver C. |The |total |pressure |exerted |on |an |object D. |All |answers |are |correct |- |correct |answer-C. |The |total |pressure |exerted |on |an |object Gauge |pressure |is |defined |as: A. |The |depth |reading |on |a |gauge B. |The |pressure |at |the |surface C. |Hydrostatic |pressure |minus |1 |ata D. |Absolute |pressure |minus |1 |ata |- |correct |answer-D. |Absolute |pressure |minus |1 |ata One |atmosphere |of |pressure |is |defined |as: A. |1 |ata B. |Each |33 |feet |of |depth |in |sea |water C. |Each |34 |feet |of |depth |in |freshwater D. |All |answers |are |correct |- |correct |answer-D. |All |answers |are |correct The |greatest |relative |pressure |change |in |seawater |takes |place |between |____ |and |____ |feet. A. |0/33 B. |33/66 C. |66/99 D. |99/132 |- |correct |answer-A. |0/33 If |you |experience |pain |in |the |ear |during |descent: A. |Continue |the |descent |while |gently |exhaling |into |the |mask B. |Stop |the |descent |and |ascend |until |the |pain |stops C. |Abort |the |dive D. |Place |a |finger |in |the |ear |canal |and |gently |massage |the |ear |until |the |pain |ceases |- |correct | answer-B. |Stop |the |descent |and |ascend |until |the |pain |stops Underwater, |the |bending |of |light |rays |causes |objects |to |appear |to |be |_______. A. |Closer B. |Farther |away C. |The |same |as |the |surface D. |At |an |angle |consistent |with |the |bend |of |light |- |correct |answer-A. |Closer Body |heat |is |lost |underwater |at |a |rate |of |______ |than |in |air. A. |10 |times |slower B. |50 |times |faster A. |Every |five |years B. |Every |three |years C. |Every |month D. |Every |year |- |correct |answer-D. |Every |year In |air |at |1 |ata, |the |partial |pressure |of |nitrogen |is |____, |oxygen |is |____. A. |0.79/0.21 |ata B. |0.21/0.79 |ata C. |1.5/0.8 |ata D. |0.8/0.4 |ata |- |correct |answer-A. |0.79/0.21 |ata Which |of |the |following |would |be |inappropriate |treatment |for |a |diver |evidencing |symptoms |of | Decompression |Sickness? A. |Administering |CPR B. |Administering |pure |oxygen |(if |qualified) C. |Treat |for |shock D. |Taking |the |victim |back |in |the |water |- |correct |answer-D. |Taking |the |victim |back |in |the |water The |only |accepted |treatment |for |Arterial |Gas |Embolism |is: A. |Immediate |recompression |by |taking |the |victim |underwater |to |relieve |the |symptoms B. |Stabilize |the |victim |in |the |nearest |medical |facility |and |transport |to |decompression |chamber |for | recompression C. |Surgery |to |repair |the |ruptured |lung D. |All |are |acceptable |treatments |- |correct |answer-B. |Stabilize |the |victim |in |the |nearest |medical | facility |and |transport |to |decompression |chamber |for |recompression The |most |serious |lung |overexpansion |injury |is: A. |Pneumothrax B. |Arterial |Gas |Embolism C. |Subcutaneous |emphysema D. |Mediastinal |emphysema |- |correct |answer-B. |Arterial |Gas |Embolism Overexpansion |injuries |can |be |prevented |by: A. |Never |holding |your |breath |while |diving B. |Learning |the |correct |breathing |patterns |reinforced |in |classroom, |pool, |and |open |water |training C. |Dive |with |a |a |properly |maintained |high-quality |Total |Diving |System D. |All |answers |are |correct |- |correct |answer-D. |All |answers |are |correct Dalton's |Law |can |be |paraphrased |as: A. |The |total |pressure |of |the |water |surrounding |a |diver B. |The |pressure |of |the |water |plus |1 |ata C. |The |total |pressure |of |a |mixture |of |gases |equals |the |sum |of |the |partial |pressures D. |The |percentage |of |nitrogen |that |causes |decompression |sickness |- |correct |answer-C. |The |total | pressure |of |a |mixture |of |gases |equals |the |sum |of |the |partial |pressures Diving |at |altitude |or |flying |after |diving: A. |Does |not |require |any |special |considerations |for |the |diver B. |Allows |the |diver |to |spend |a |greater |amount |of |time |at |depth |without |exceeding |the |no- decompression |limits C. |Allows |the |diver |to |ignore |the |no-decompression |limits D. |Requires |special |diving |computer |functions, |altitude |tables |and/or |refraining |from |flying |from |at |least |24 |hours |after |the |completion |of |a |dive |- |correct |answer-D. |Requires |special |diving |computer |functions, |altitude |tables |and/or |refraining |from |flying |from |at |least |24 |hours |after |the |completion |of |a |dive Haldanes |theory |that |the |human |body |can |withstand |a |2:1 |pressure |ratio |was |revised |by |D | Workman |to |a |nitrogen |ratio |of: A. |5:1 B. |1:1 C. |3:1 D. |1.58:1 |- |correct |answer-D. |1.58:1 A |good |diving |buddy: A. |Is |able |to |help |in |all |phases |of |diving |and |dive |planning B. |Is |as |familiar |with |their |buddy's |diving |equipment |as |they |are |with |their |own C. |Makes |diving |more |fun D. |All |answers |are |correct |- |correct |answer-D. |All |answers |are |correct Rip |currents |are |formed |by: A. |Wind B. |Water |breaks |over |rocks |far |away |from |shore |and |stays |inside |the |tidal |pools C. |High |Tide |at |full |moon D. |Water |breaks |over |sand |bars |and |reefs |near |the |beach |and |recedes |through |channels |or |cuts |in |the |bars |and |reefs |- |correct |answer-D. |Water |breaks |over |sand |bars |and |reefs |near |the |beach |and |recedes |through |channels |or |cuts |in |the |bars |and |reefs The |term |No-decompression |Limit |is |defined |as: A. |The |bottom |time |recorded |during |a |dive B. |The |maximum |depth |recorded |during |the |dive C. |Always |being |a |responsible |diver D. |All |answers |are |correct |- |correct |answer-D. |All |answers |are |correct Two |examples |of |hard |coral |reefs |are: A. |Elkhorn |and |Staghorn B. |Fire |and |Star C. |Sea |Fan |and |Brain D. |All |answers |are |correct |- |correct |answer-A. |Elkhorn |and |Staghorn B. |Fire |and |Star If |a |diver |is |injured |by |sea |life, |it |is |usually |because |of: A. |The |diver's |negligence B. |The |diver's |ignorance C. |The |diver's |aggressive |behavior D. |All |answers |are |correct |- |correct |answer-D. |All |answers |are |correct Water |comprises |about |____ |of |the |Earth's |surface. A. |50% B. |85% C. |72% D. |66% |- |correct |answer-C. |72% More |than |____ |of |the |Earth's |oxygen |is |produced |by |marine |plants. A. |50% B. |85% C. |72% D. |66% |- |correct |answer-B. |85% Two |examples |of |soft |coral |are: A. |Elkorn |and |Staghorn B. |Black |and |Red |Coral C. |Sea |Fan |and |Brain D. |All |answers |are |correct |- |correct |answer-B. |Black |and |Red |Coral Divers |should |avoid |contact |with |all |corals |because: A. |Contact |can |damage |the |coral B. |Contact |can |be |harmful |to |the |diver C. |Touching |the |corals |will |damage |your |equipment D. |All |answers |are |correct |- |correct |answer-D. |All |answers |are |correct The |first |thing |you |should |do |if |you |observe |signs |of |panic |in |a |diver |at |the |surface |is: A. |Drop |your |weight |belt B. |Completely |fill |your |BC |and |instruct |the |panicked |diver |to |establish |positive |buoyancy C. |Call |for |help D. |Swim |to |the |panicked |diver |and |try |to |drop |the |diver's |weight |belt |- |correct |answer-B. | Completely |fill |your |BC |and |instruct |the |panicked |diver |to |establish |positive |buoyancy In |an |out |of |air |emergency |and |your |buddy |is |close |enough |you |should: A. |Swim |to |your |buddy, |give |the |out-of-air |signal, |and |share |air B. |Perform |a |Controlled |Swimming |Ascent C. |Perform |an |Emergency |Buoyant |Ascent D. |All |answers |are |correct |- |correct |answer-A. |Swim |to |your |buddy, |give |the |out-of-air |signal, |and | share |air Causes |of |panic |include: A. |Certain |environmental |conditions B. |All |answers |are |correct C. |Using |equipment |that |is |unfamiliar |or |does |not |fit |well D. |Diving |outside |a |diver's |comfort |and |ability |- |correct |answer-B. |All |answers |are |correct To |achieve |the |SSI |Advanced |Open |Water |Diver |rating, |a |diver |is |required |to: A. |Log |an |additional |5 |dives |beyond |Open |Water |Certification |under |the |supervision |of |an |SSI |Dive |professional B. |Complete |4 |Specialty |Courses |and |log |a |total |of |24 |dives C. |Complete |4 |Specialty |Courses D. |All |answers |are |correct |- |correct |answer-B. |Complete |4 |Specialty |Courses |and |log |a |total |of |24 | dives Signs |of |a |panicked |diver |are: A. |Slow |and |erratic |movement |underwater B. |A |diver |giving |you |the |out |of |air |signal |while |moving |toward |you C. |Wide-eyed, |fearful |look |and |a |fast |and |erratic |breathing |pattern D. |A |diver |heading |toward |the |surface |before |the |scheduled |end |of |the |dive |- |correct |answer-C. | Wide-eyed, |fearful |look |and |a |fast |and |erratic |breathing |pattern A |dependent |action |to |take |in |response |to |an |out |of |air |emergency |is: