SSI ASSISTANT INSTRUCTOR PRE TEST
(2026/2027) UPDATE|EXAM
QUESTIONS WITH MULTIPLE
CHOICES |VERIFIED & REVISED
ANSWERS (NEW)!!!
Assumingmammaximummpartialmpressuremlimitationmofm1.4mbar,mthemmaximummdepthmformam32%mni
troxmmixturemism____mofmseawater.
33.7mm
20mm
66mm
43.7mmm-mCORRECTmANSWERm33.7mm
Whichmphysicalmlawmstates:m"Ifmtemperaturemremainsmconstant,mthempressuremandmvolumemofmany
mgasmareminverselymrelated"?
Dalton
Henry
Archimedes
Boyle
Savem-mCORRECTmANSWERmBoyle
Formeverymmetermofmdepthminmfreshwater,mpressuremchangesmby:
0.013mbar
0.098mbar
0.100mbar
1.03mbarm-mCORRECTmANSWERm0.098mbar
,divermandmhism/mhermequipmentmweighm87mkgmwhenmneutrallymbuoyantminmsaltwater.mTombemneutr
allymbuoyantmformfreshwatermdivingmwithmthemsamemequipment,mhem/shemhasmto:
Addmweight
Allmanswersmaremcorrect
Usemthemsamemweight
Removemweightm-mCORRECTmANSWERmRemovemweight
Ifm2mlitersmofmairmaremneededminmyourmbuoyancymcompensatormtommaintainmneutralmbuoyancymatm
10mminmthemocean,mwhatmwillmhappenmtomyourmbuoyancymifmyoumascendm3mmmwithoutmdeflating:
Yourmpositivembuoyancymwillmincrease
Theremwillmbemnomchangeminmbuoyancy
Yourmnegativembuoyancymwillmincrease
Youmwillmstaymneutralmnommattermifmyoumascendmormdescendm-
mCORRECTmANSWERmYourmpositivembuoyancymwillmincrease
Breathingmgasmconsumption:
Variesminverselymwithmdepth
Increasesmasmdepthmincreases
Decreasesmasmdepthmincreases
Remainsmthemsamemasmdepthmincreasesm-mCORRECTmANSWERmIncreasesmasmdepthmincreases
Themoceanmdepthmatmwhichmthempartialmpressuremofmoxygenminmairmequalsm1.6mbarmism_____mmete
rsmassumingmO2m=m21%.
70
85
66
55m-mCORRECTmANSWERm66
, Assumingmammaximummpartialmpressuremlimitationmofm1.4mbar,mthemmaximummMODmformam40%mni
troxmmixtureminmthemoceanmis:
35mmeters
25mmeters
40mmeters
20mmetersm-mCORRECTmANSWERm25mmeters
Themabsolutempressurematmamdepthmofm50mmetersminmsaltmwatermis:
5.012mbar
6.000mbar
5.000mbar
5.901mbarm-mCORRECTmANSWERm6.000mbar
Whatmwouldmbemthemsurfacemairmconsumptionmratem(SAC)mofmamdivermwithmam200bar,m10mlitermcyli
ndermwhomusesm50barminm10mminutesmatmamdepthmofm10mmetersminmthemocean?
25mlitersm/mminute
50mlitersm/mminute
35mlitersm/mminute
10mlitersm/mminutem-mCORRECTmANSWERm25mlitersm/mminute
Ifmyoumhavemdifficultymequalizingmpressureminmyourmears/sinusesmwhilemdescending,myoumshould:
Ascendm2mmetersmandmforcemequalization
Stopmandmwaitmuntilmthemdiscomfortmsubsides
Ascendmuntilmthempressuremismrelievedmandmthenmattemptmequalization
Returnmtomthemsurfacemandmre-initiatemthemdescentm-
mCORRECTmANSWERmAscendmuntilmthempressuremismrelievedmandmthenmattemptmequalization
(2026/2027) UPDATE|EXAM
QUESTIONS WITH MULTIPLE
CHOICES |VERIFIED & REVISED
ANSWERS (NEW)!!!
Assumingmammaximummpartialmpressuremlimitationmofm1.4mbar,mthemmaximummdepthmformam32%mni
troxmmixturemism____mofmseawater.
33.7mm
20mm
66mm
43.7mmm-mCORRECTmANSWERm33.7mm
Whichmphysicalmlawmstates:m"Ifmtemperaturemremainsmconstant,mthempressuremandmvolumemofmany
mgasmareminverselymrelated"?
Dalton
Henry
Archimedes
Boyle
Savem-mCORRECTmANSWERmBoyle
Formeverymmetermofmdepthminmfreshwater,mpressuremchangesmby:
0.013mbar
0.098mbar
0.100mbar
1.03mbarm-mCORRECTmANSWERm0.098mbar
,divermandmhism/mhermequipmentmweighm87mkgmwhenmneutrallymbuoyantminmsaltwater.mTombemneutr
allymbuoyantmformfreshwatermdivingmwithmthemsamemequipment,mhem/shemhasmto:
Addmweight
Allmanswersmaremcorrect
Usemthemsamemweight
Removemweightm-mCORRECTmANSWERmRemovemweight
Ifm2mlitersmofmairmaremneededminmyourmbuoyancymcompensatormtommaintainmneutralmbuoyancymatm
10mminmthemocean,mwhatmwillmhappenmtomyourmbuoyancymifmyoumascendm3mmmwithoutmdeflating:
Yourmpositivembuoyancymwillmincrease
Theremwillmbemnomchangeminmbuoyancy
Yourmnegativembuoyancymwillmincrease
Youmwillmstaymneutralmnommattermifmyoumascendmormdescendm-
mCORRECTmANSWERmYourmpositivembuoyancymwillmincrease
Breathingmgasmconsumption:
Variesminverselymwithmdepth
Increasesmasmdepthmincreases
Decreasesmasmdepthmincreases
Remainsmthemsamemasmdepthmincreasesm-mCORRECTmANSWERmIncreasesmasmdepthmincreases
Themoceanmdepthmatmwhichmthempartialmpressuremofmoxygenminmairmequalsm1.6mbarmism_____mmete
rsmassumingmO2m=m21%.
70
85
66
55m-mCORRECTmANSWERm66
, Assumingmammaximummpartialmpressuremlimitationmofm1.4mbar,mthemmaximummMODmformam40%mni
troxmmixtureminmthemoceanmis:
35mmeters
25mmeters
40mmeters
20mmetersm-mCORRECTmANSWERm25mmeters
Themabsolutempressurematmamdepthmofm50mmetersminmsaltmwatermis:
5.012mbar
6.000mbar
5.000mbar
5.901mbarm-mCORRECTmANSWERm6.000mbar
Whatmwouldmbemthemsurfacemairmconsumptionmratem(SAC)mofmamdivermwithmam200bar,m10mlitermcyli
ndermwhomusesm50barminm10mminutesmatmamdepthmofm10mmetersminmthemocean?
25mlitersm/mminute
50mlitersm/mminute
35mlitersm/mminute
10mlitersm/mminutem-mCORRECTmANSWERm25mlitersm/mminute
Ifmyoumhavemdifficultymequalizingmpressureminmyourmears/sinusesmwhilemdescending,myoumshould:
Ascendm2mmetersmandmforcemequalization
Stopmandmwaitmuntilmthemdiscomfortmsubsides
Ascendmuntilmthempressuremismrelievedmandmthenmattemptmequalization
Returnmtomthemsurfacemandmre-initiatemthemdescentm-
mCORRECTmANSWERmAscendmuntilmthempressuremismrelievedmandmthenmattemptmequalization