Nitrox Diving Certification: Questions and Answers, Exams of Marine Engineering

Explore a comprehensive set of questions and answers related to nitrox diving certification. Essential topics such as nitrogen exposure reduction, inert gas properties, safety hazards, and the benefits of using nitrox. It also delves into gas laws, pressure calculations, oxygen toxicity, and dive table usage, providing valuable insights for divers seeking to enhance their knowledge and skills in enriched air diving. The material is designed to prepare divers for certification exams and improve their understanding of nitrox diving principles.

Typology: Exams

2025/2026

Available from 12/08/2025

DOCSHUB
DOCSHUB 🇺🇸

5

(2)

12K documents

1 / 25

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
NITROX /
/Certification /
/Questions //With //Correct //Answers //
Main /
/reason /
/to /
/dive /
/with /
/nitrox /
/is /
/to /
/reduce /
/expisure /
/to /
/some /
/of /
/the /
/problems /
/in /
/diving /
/caused //by: //- //CORRECT //ANSWERS(S)✔✔Nitrogen
pf3
pf4
pf5
pf8
pf9
pfa
pfd
pfe
pff
pf12
pf13
pf14
pf15
pf16
pf17
pf18
pf19

Partial preview of the text

Download Nitrox Diving Certification: Questions and Answers and more Exams Marine Engineering in PDF only on Docsity!

NITROX /

/Certification /

/Questions //With //Correct //Answers //

Main /

/reason /

/to /

/dive /

/with /

/nitrox /

/is /

/to /

/reduce /

/expisure /

/to /

/some /

/of /

/the /

/problems /

/in /

/diving /

/caused //by: //- //CORRECT //ANSWERS(S)✔✔Nitrogen

We /

/say /

/that /

/nitrogen /

/is /

/an /

/inert /

/gas. /

/This /

/means... //- /

/CORRECT /

/ANSWERS(S)✔✔Our /

/bodies //do //not //use //the //nitrogen //we //breathe

What /

/is /

/the /

/primary /

/safety /

/hazard /

/if /

/breathing /

/nitrogen /

/at /

/depth? //- //CORRECT //ANSWERS(S)✔✔Nitrogen //Narcosis

A /

/scuba /

/diver /

/breathing /

/Nitrox /

/avoids /

/any /

/risk /

/of /

/nitrogen //narcosis? //- //CORRECT //ANSWERS(S)✔✔False

If //

a /

/Nitrox /

/mix /

/is /

/oxygen, /

/what /

/is /

/the /

/fraction /

/of /

/oxygen /

/in //the //gas //mix? //- //CORRECT //ANSWERS(S)✔✔0.

Describes /

/the /

/relationship /

/between /

/absolute /

/pressure /

/and /

/the /

/volume /

/of //a //gas. //- //CORRECT //ANSWERS(S)✔✔Boyle's //Law

To /

/find /

/the /

/partial /

/pressure /

/of //

a /

/gas /

/in //

a /

/mixture. //- /

/CORRECT /

/partial /

/pressure /

/(PN2) /

/in /

/EAN35 /

/at //

a /

/depth /

/of /

/msw /

/fsw)? //- /

/CORRECT /

/ANSWERS(S)✔✔*Chapter // 2 //formula //and //tables

What /

/is //the //oxygen //partial //pressure //(PO2) //of //EAN38 //at // 27 //msw

/fsw)? //- /

/CORRECT /

/ANSWERS(S)✔✔*Chapter // 2 //formula //and //tables

At /

/what /

/depth /

/in /

/the /

/ocean /

/is /

/the /

/absolute /

/pressure /

/ata? //- /

/CORRECT /

/ANSWERS(S)✔✔*Chapter // 2 //formula //and //tables

If //the //PO2 //at // 30 //msw //(98 //fsw) //is //1.4 //atmospheres, //what //is

//the /

/oxygen /

/fraction /

/of /

/the /

/breathing /

/mixture? //- /

/CORRECT /

/ANSWERS(S)✔✔*Chapter // 2 //formula //and //tables

The /

/mechanisms /

/of /

/nitrogen /

/narcosis /

/are /

/thought /

/to /

/be //similar //to: //- //CORRECT //ANSWERS(S)✔✔Anesthesia

Oxygen /

/is /

/used /

/by /

/the //body //in... //- //CORRECT //ANSWERS(S)✔✔Metabolism

The /

/term /

/used /

/for /

/low /

/oxygen /

/in //the //body //- //CORRECT //ANSWERS(S)✔✔Hypoxia

Breathing /

/high /

/partial /

/pressures /

/of /

/oxygen /

/can //cause... //- //CORRECT //ANSWERS(S)✔✔Convulsions

The /

/accepted /

/oxygen /

/partial /

/pressure /

/exposure /

/limit /

/for /

/recreational /

/Nitrox //diving... //- //CORRECT //ANSWERS(S)✔✔1.4 //ata

At /

/the /

/first /

/signs /

/or /

/to /

/use /

/an //oxygen //partial //pressure //limit //of //1.4 //ata //on //a //dive //to // 27

//msw /

/fsw)? //- /

/CORRECT /

/ANSWERS(S)✔✔*Chapter // 4 //formula //and //tables

Standard /

/NAUI /

/Dive /

/Tables /

/can /

/be /

/used /

/for /

/altitudes /

/up /

/to /

/about... //- /

/CORRECT //ANSWERS(S)✔✔ 300 //meters //(1000 //feet)

NAUI /

/RGBM /

/sea /

/level /

/Dive /

/Tables /

/can /

/be /

/used /

/for /

/altitudes /

/up /

/to: //- //CORRECT //ANSWERS(S)✔✔ 610 //meters //(2000 //feet)

The /

/NAUI /

/EAN32 /

/and /

/EAN36 /

/Dive /

/Tables /

/have //

a /

/tolerance /

/of /

/Nitrox, /

/the /

/equivalent /

/air /

/depth /

/(EAD) /

/is... //- /

/CORRECT /

/ANSWERS(S)✔✔Shallower //than //actual //depth

Calculate /

/the /

/equivalent /

/air /

/depth /

/for //

a /

/msw /

/msw) /

/Dive /

/using /

/EAN36. //- /

/CORRECT //ANSWERS(S)✔✔*Formulas //in //Chapter // 5

Dive /

/computers /

/offer /

/the /

/advantage /

/of /

/giving /

/the /

/diver: //- /

/CORRECT /

/ANSWERS(S)✔✔"Credit" /

/for //the //shallower //portions //of //the //dive

The /

/Rule /

/of //Halves //is: //- //CORRECT //ANSWERS(S)✔✔For //any //no-

decompression /

/Dive, /

/end /

/the /

/dive /

/with //

a /

/two /

With /

/regard /

/to /

/oxygen /

/enriched /

/air, /

/as /

/the /

/_______ /

/of /

/oxygen /

/increases, /

/so /

/does /

/the /

/risk /

/of /

/combustion. //- /

/CORRECT /

/ANSWERS(S)✔✔Fraction //and //partial //pressure

If /

/contamination /

/of /

/oxygen /

/cleaned /

/equipment /

/is /

/suspected, /

/the /

/equipment //must //be: //- //CORRECT //ANSWERS(S)✔✔Re-

cleaned

Scuba /

/regulators /

/do /

/not /

/need /

/to /

/be /

/specially /

/clean /

/for /

/nitrox /

/service /

/unless //they //will //be //used //with //pure //oxygen //on //oxygen //level

//that //is //above: //- //CORRECT //ANSWERS(S)✔✔40%