▁a ▁b ach elor ' s ▁degree ▁in ▁engineering ▁or ▁science ▁and ▁are ▁commission ed ▁in ▁the ▁Royal ▁Th ai ▁Navy ▁with ▁the ▁rank ▁of ▁en sign ▁( sub - lie utenant ). ▁T ogether ▁with ▁gradu ates ▁of ▁the ▁other ▁armed ▁forces ▁and ▁police ▁academ ies ▁they ▁receive ▁their ▁s words ▁from ▁the ▁king ▁personally ▁or ▁the ▁king ' s ▁representative . ▁ ▁Education ▁of ▁Th ai ▁naval ▁officers ▁▁ ▁Those ▁who ▁want ▁to ▁enter ▁the ▁a cademy ▁first ▁have ▁to ▁pass ▁the ▁entrance ▁exam , ▁after ▁which ▁they ▁join ▁a ▁two - year ▁prepar atory ▁program ▁at ▁the ▁Ar med ▁Forces ▁Academ ies ▁Pre par atory ▁School ▁where ▁they ▁study ▁together ▁with ▁army , ▁air ▁force , ▁and ▁police ▁cad ets . ▁ ▁On ▁successful ▁completion , ▁they ▁enter ▁the ▁Royal ▁Th ai ▁Naval ▁Academy . ▁After ▁gradu ation , ▁they ▁attend ▁a ▁further ▁one - year ▁advanced ▁course ▁at ▁S att ah ip ▁that ▁leads ▁to ▁a ▁gradu ate ▁di pl oma ▁in ▁naval ▁science . ▁On ▁completion ▁of ▁this ▁course , ▁they ▁are ▁ready ▁to ▁work ▁as ▁officers ▁in ▁the ▁Royal ▁Th ai ▁Navy ▁and ▁Royal ▁Th ai ▁Marine ▁Corps . ▁ ▁The ▁a cademy ▁also ▁trains ▁police ▁cad ets ▁dest ined ▁to ▁work ▁at ▁the ▁marine ▁police , ▁while ▁every ▁year ▁a ▁few ▁top ▁gradu ates ▁of ▁the ▁Naval ▁R ating ▁School ▁for ▁non - comm ission ed ▁officers ▁enter ▁the ▁a cademy ▁directly ▁after ▁a ▁separate ▁entrance ▁exam . ▁ ▁Selected ▁first - year ▁cad ets ▁of