SDI Divemaster Questions And Answers With Verified
Tests
Categories of diving ANS Recreational
Commercial
Scientific
Military
Hobby-type activity in which participation is based upon personal enjoyment ANS Recreational
Diving
Inventors of modern scuba ANS Emile Gagnan and Jacques-Yves Cousteau
Self-contained underwater breathing apparatus ANS Scuba
Year scuba was invented ANS 1943
First civilian diver training in the USA ANS 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. ANS Technical Diving
Nitrogen and oxygen mixture with higher percentage of oxygen than air. Reduces the effects of
nitrogen at depth. ANS 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. ANS Sport Diving
Parent organization for Scuba Diving International (SDI), Technical Diving International (TDI), and
Emergency Response Diving International (ERDI). ANS International Training (ITI)
, 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. ANS 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. ANS 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. ANS Emergency Response Diving International
(ERDI)
The first leadership level in recreational diving. These individuals can assist instructors and supervise
dives for certified divers. ANS Divemaster
Can assist TDI instructors and lead technical divers. ANS 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. ANS Assistant
Instructor
The professional primarily responsible for training and certifying sport divers. ANS Instructor
A professional who may independently conduct the SDI Instructor Development Course (but not the
Instructor Evaluation Course). ANS Course Director
The highest leadership level in the curriculum of both SDI and TDI. They are responsible for
training, evaluating, and certifying SDI and TDI Instructors, as well as SDI Course Directors.
ANS Instructor Trainer
Tests
Categories of diving ANS Recreational
Commercial
Scientific
Military
Hobby-type activity in which participation is based upon personal enjoyment ANS Recreational
Diving
Inventors of modern scuba ANS Emile Gagnan and Jacques-Yves Cousteau
Self-contained underwater breathing apparatus ANS Scuba
Year scuba was invented ANS 1943
First civilian diver training in the USA ANS 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. ANS Technical Diving
Nitrogen and oxygen mixture with higher percentage of oxygen than air. Reduces the effects of
nitrogen at depth. ANS 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. ANS Sport Diving
Parent organization for Scuba Diving International (SDI), Technical Diving International (TDI), and
Emergency Response Diving International (ERDI). ANS International Training (ITI)
, 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. ANS 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. ANS 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. ANS Emergency Response Diving International
(ERDI)
The first leadership level in recreational diving. These individuals can assist instructors and supervise
dives for certified divers. ANS Divemaster
Can assist TDI instructors and lead technical divers. ANS 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. ANS Assistant
Instructor
The professional primarily responsible for training and certifying sport divers. ANS Instructor
A professional who may independently conduct the SDI Instructor Development Course (but not the
Instructor Evaluation Course). ANS Course Director
The highest leadership level in the curriculum of both SDI and TDI. They are responsible for
training, evaluating, and certifying SDI and TDI Instructors, as well as SDI Course Directors.
ANS Instructor Trainer
