SDI DIVEMASTER EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2026 – 2027
Categories of diving - (answer)Recreational
Commercial
Scientific
Military
Hobby-type activity in which participation is based upon personal enjoyment - (answer)Recreational
Diving
Inventors of modern scuba - (answer)Emile Gagnan and Jacques-Yves Cousteau
Self-contained underwater breathing apparatus - (answer)Scuba
Year scuba was invented - (answer)1943
First civilian diver training in the USA - (answer)Los Angeles County
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. -
(answer)Technical Diving
Nitrogen and oxygen mixture with higher percentage of oxygen than air. Reduces the effects of nitrogen
at depth. - (answer)Nitrox
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. - (answer)Sport Diving
Parent organization for Scuba Diving International (SDI), Technical Diving International (TDI), and
Emergency Response Diving International (ERDI). - (answer)International Training (ITI)
, SDI DIVEMASTER EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2026 – 2027
Formed in 1994 by the early nitrox pioneers to provide recreational divers with the most accurate and up
to date information on diving tools and techniques. - (answer)Technical Diving International (TDI)
Formed in 1998 from requests from TDI instructors and TDI dive centers who were anxious to see the
same type of clear, practical, and no-nonsense approach introduced to the sport diving arena. It was the
first agency to mandate the use of personal dive computers during all confined water and open water
training. It was the first agency to offer a certification program for 10 year old divers. It was the first
agency to offer on-line academics for the Open Water Diver course. And it was the first agency to offer a
Solo Diver certification. - (answer)Scuba Diving International (SDI)
Formed in 2000 to provide highly specialized training for police, fire service, and other public safety
personnel, addressing search and rescue techniques in various and sometimes hazardous underwater
environments, for both divers and dive tenders. - (answer)Emergency Response Diving International
(ERDI)
The first leadership level in recreational diving. These individuals can assist instructors and supervise
dives for certified divers. - (answer)Divemaster
Can assist TDI instructors and lead technical divers. - (answer)Technical Divemaster
Individuals at this level can teach and certify skin divers, conduct refreshers courses, conduct knowledge
quest reviews with open water divers, and teach approved specialties. - (answer)Assistant Instructor
The professional primarily responsible for training and certifying sport divers. - (answer)Instructor
A professional who may independently conduct the SDI Instructor Development Course (but not the
Instructor Evaluation Course). - (answer)Course Director
CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2026 – 2027
Categories of diving - (answer)Recreational
Commercial
Scientific
Military
Hobby-type activity in which participation is based upon personal enjoyment - (answer)Recreational
Diving
Inventors of modern scuba - (answer)Emile Gagnan and Jacques-Yves Cousteau
Self-contained underwater breathing apparatus - (answer)Scuba
Year scuba was invented - (answer)1943
First civilian diver training in the USA - (answer)Los Angeles County
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. -
(answer)Technical Diving
Nitrogen and oxygen mixture with higher percentage of oxygen than air. Reduces the effects of nitrogen
at depth. - (answer)Nitrox
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. - (answer)Sport Diving
Parent organization for Scuba Diving International (SDI), Technical Diving International (TDI), and
Emergency Response Diving International (ERDI). - (answer)International Training (ITI)
, SDI DIVEMASTER EXAM WITH CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY
GRADED A+ 2026 – 2027
Formed in 1994 by the early nitrox pioneers to provide recreational divers with the most accurate and up
to date information on diving tools and techniques. - (answer)Technical Diving International (TDI)
Formed in 1998 from requests from TDI instructors and TDI dive centers who were anxious to see the
same type of clear, practical, and no-nonsense approach introduced to the sport diving arena. It was the
first agency to mandate the use of personal dive computers during all confined water and open water
training. It was the first agency to offer a certification program for 10 year old divers. It was the first
agency to offer on-line academics for the Open Water Diver course. And it was the first agency to offer a
Solo Diver certification. - (answer)Scuba Diving International (SDI)
Formed in 2000 to provide highly specialized training for police, fire service, and other public safety
personnel, addressing search and rescue techniques in various and sometimes hazardous underwater
environments, for both divers and dive tenders. - (answer)Emergency Response Diving International
(ERDI)
The first leadership level in recreational diving. These individuals can assist instructors and supervise
dives for certified divers. - (answer)Divemaster
Can assist TDI instructors and lead technical divers. - (answer)Technical Divemaster
Individuals at this level can teach and certify skin divers, conduct refreshers courses, conduct knowledge
quest reviews with open water divers, and teach approved specialties. - (answer)Assistant Instructor
The professional primarily responsible for training and certifying sport divers. - (answer)Instructor
A professional who may independently conduct the SDI Instructor Development Course (but not the
Instructor Evaluation Course). - (answer)Course Director
