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Exam
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Study Guide Questions With Correct Answers
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When /
/is //an //object //positively //buoyant? //- //correct //answer(s) //✔✔ //When //it //displaces //a //volume //of
//water //weighing //more //than //its //own //weight.
When /
/is /
/an /
/object /
/negatively /
/buoyant? //- /
/correct //answer(s) //✔✔ //When //it //displaces //a //volume //of //water //weighing //less //than //its //own
//weight.
When /
/is /
/an /
/object //neutrally //buoyant? //- //correct //answer(s) //✔✔ //When //it //displaces //a //volume //of //water
//weighing //the //same //as //its //own //weight.
Why /
/two /
/pieces /
/of /
,/equipment /
/do //you //use //to //control //your //buoyancy? //- //correct //answer(s) //✔✔ //BCD, //Lead //weight
What /
/does /
/buoyancy /
/help /
/with //when //you //are //underwater? //- //correct //answer(s) //✔✔ //Controlling //where //you //are
What /
/does /
/buoyancy /
/help /
/with /
/when //you //are //at //the //surface? //- //correct //answer(s) //✔✔ //Floatation, //conserving //energy
How //does //the //buoyancy //of //an //object //differ //in //fresh/salt //water? //- //correct //answer(s) //✔✔
//More //buoyant //in //salt //than //fresh
When /
/you /
/exhale /
/what /
/happens? //- //correct //answer(s) //✔✔ //Lung //volume //decreases //so //you //have //less //buoyancy.
When //you //inhale //what //happens? //- //correct //answer(s) //✔✔ //Lung //volume //increases //so //you
//have //more //buoyancy.
Why /
/don't /
/you /
/feel /
, /air /
/pressure? //- //correct //answer(s) //✔✔ //Your //body //is //primarily //liquid, //which //is //incompressible
//and //distribute //pressure //equally //throughout //your //whole //body.
Where /
/are //some //air //spaces //located //in //the //body? //- //correct //answer(s) //✔✔ //Ears, //sinuses, //lungs
Do /
/you /
/always /
/feel /
/the /
/pressure /
/in /
/body /
/air /
/spaces? //- //correct //answer(s) //✔✔ //Only //if //the //pressure //is //different //inside //and //outside //the
//air //spaces.
1 //bar //is //what //depth? //- //correct //answer(s) //✔✔ //0m/0ft
2 //bar //is //what //depth? //- //correct //answer(s) //✔✔ //33ft/10m
3 //bar //is //what //depth? //- //correct //answer(s) //✔✔ //66ft/20m
4 //bar //is //what //depth? //- //correct //answer(s) //✔✔ //99ft/30m
How /
/is //air //volume //affected //when //depth //is //increased? //- //correct //answer(s) //✔✔ //It //decreases