– Practice Questions with
Verified Answers. GRADED A+.
Latest 2026/2027 Update.
At a minimum, while diving, most dive computers display: - Answer✔✔-
Maximum depth, current depth, actual bottom time, remaining allowable
bottom time.
Which of the following is an essential feature to consider when selecting a
diving mask? - Answer✔✔-Tempered or safety glass
Snorkels over 15 inches (38 centimeters) in length are not recommended
primarily because: - Answer✔✔-They have too much dead air space.
When buying or renting equipment for diving, the most important
consideration is: - Answer✔✔-Its fit on your body.
When rinsing a regulator it is best to: - Answer✔✔-Leave the regulator
attached to the tank or have the dust cap in place.
, Three features that are common to all buoyancy control devices are: -
Answer✔✔-An overpressure relief valve, inflation/deflation hose, low pressure
inflator hose.
Three types of alternate air sources that are in common use today are: -
Answer✔✔-Octopus rigs, completely redundant systems, an integrated
regulator into the BCD inflation/deflation hose.
According to the United States Department of Transportation regulations,
scuba tanks must be hydrostatically tested every: - Answer✔✔-5 years
The most important functional feature of a weight belt or weight system is: -
Answer✔✔-A means for ditching the weights immediately with one hand.
The primary purpose of the exposure suit is to: - Answer✔✔-Preserve body
heat during dives.
You should have your regulator serviced by a certified repair technician: -
Answer✔✔-At least once per year.
The stage of the regulator which reduces tank pressure is: - Answer✔✔-first
Two types of materials that scuba tanks are made from are steel and
_________. - Answer✔✔-aluminum
The _________ line is the direction of travel line on the compass. - Answer✔✔-
lubber