SDI DIVEMASTER EXAM WITH CORRECT
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
Haldane's Model - ANSWERS-Model that delineates depth
and time limits with associated decompression schedules.
Half-time - ANSWERS-The time in minutes for a
compartment to go halfway from its initial level of dissolved
nitrogen at a certain depth, to its ultimate level of dissolved
nitrogen at a new depth.
M-Value - ANSWERS-Maximum limits for excess nitrogen as
a percentage above the normal quantity of nitrogen present
in a a saturated tissue at the surface.
,Pulmonary System - ANSWERS-Directs blood flow from the
right ventricle of heart to the lungs where it is oxygenated
and returns to left atrium
Oxygen - ANSWERS-Critical ingredient in body's metabolic
processes and comprises 21% of air.
Carbon Dioxide - ANSWERS-A by-product of metabolism and
is potentially harmful to the body in elevated levels.
1943 - ANSWERS-Year scuba was invented
Los Angeles County - ANSWERS-First civilian diver training in
the USA
Technical Diving - ANSWERS-Dives greater than the
recreational limit of 130 FSW that require special training
and equipment. This may also include decompression
diving, alternating breathing gasses, or penetration into
wrecks/caves.
Recreational
Commercial
, Scientific
Military - ANSWERS-Categories of diving
Recreational Diving - ANSWERS-Hobby-type activity in
which participation is based upon personal enjoyment
Emile Gagnan and Jacques-Yves Cousteau - ANSWERS-
Inventors of modern scuba
Scuba - ANSWERS-Self-contained underwater breathing
apparatus
Nitrox - ANSWERS-Nitrogen and oxygen mixture with higher
percentage of oxygen than air. Reduces the effects of
nitrogen at depth.
Sport Diving - ANSWERS-Dives less than 130 FSW on an
open circuit scuba with a single cylinder. Divers do not dive
in overhead environments or past their no-decompression
limits.
International Training (ITI) - ANSWERS-Parent organization
for Scuba Diving International (SDI), Technical Diving
ACTUAL QUESTIONS AND CORRECTLY
WELL DEFINED ANSWERS LATEST
ALREADY GRADED A+ 2025 – 2026
Haldane's Model - ANSWERS-Model that delineates depth
and time limits with associated decompression schedules.
Half-time - ANSWERS-The time in minutes for a
compartment to go halfway from its initial level of dissolved
nitrogen at a certain depth, to its ultimate level of dissolved
nitrogen at a new depth.
M-Value - ANSWERS-Maximum limits for excess nitrogen as
a percentage above the normal quantity of nitrogen present
in a a saturated tissue at the surface.
,Pulmonary System - ANSWERS-Directs blood flow from the
right ventricle of heart to the lungs where it is oxygenated
and returns to left atrium
Oxygen - ANSWERS-Critical ingredient in body's metabolic
processes and comprises 21% of air.
Carbon Dioxide - ANSWERS-A by-product of metabolism and
is potentially harmful to the body in elevated levels.
1943 - ANSWERS-Year scuba was invented
Los Angeles County - ANSWERS-First civilian diver training in
the USA
Technical Diving - ANSWERS-Dives greater than the
recreational limit of 130 FSW that require special training
and equipment. This may also include decompression
diving, alternating breathing gasses, or penetration into
wrecks/caves.
Recreational
Commercial
, Scientific
Military - ANSWERS-Categories of diving
Recreational Diving - ANSWERS-Hobby-type activity in
which participation is based upon personal enjoyment
Emile Gagnan and Jacques-Yves Cousteau - ANSWERS-
Inventors of modern scuba
Scuba - ANSWERS-Self-contained underwater breathing
apparatus
Nitrox - ANSWERS-Nitrogen and oxygen mixture with higher
percentage of oxygen than air. Reduces the effects of
nitrogen at depth.
Sport Diving - ANSWERS-Dives less than 130 FSW on an
open circuit scuba with a single cylinder. Divers do not dive
in overhead environments or past their no-decompression
limits.
International Training (ITI) - ANSWERS-Parent organization
for Scuba Diving International (SDI), Technical Diving
