SDI International Scuba Diving Chapters
1-5 Comprehensive Review
A cylinder should be visually inspected at least ________ a year and hydrostatically
tested every __________ years, in the United States. - ANSWER-Once, Five
A properly weighted scuba diver should float at _____________ when her BCD is
deflated and lungs are fully inflated. - ANSWER-Eye Level
Define maximum dive depth? - ANSWER-How far down you are
Define no-stop time - ANSWER-The amount of time remaining at any point during a
dive before incurring a mandatory decompression stop.
Define risk management - ANSWER-RM is a decision-making process used to
systematically evaluate possible courses of action, identify risks, benefits, and
determine the best course of action for any given situation.
Describe all the steps to assemble a BCD and regulator to a scuba cylinder? -
ANSWER-Spin the tank around so that the back of the valve is facing you. Place the
BCD band(s) over the top of the cylinder so that the back of the BCD is facing you.
Raise or lower the BCD so the top is even with the cylinder valve. Fasten the buckles.
Remove dust cap, hold first stage in left hand, rotate the chambers until the primary
second stage sits on the right. Screw the knob on your first stage until it is finger tight.
Connect the low pressure inflator hose to the stem on the BCD's inflator. Turn on the
air.
Describe from the start to finish the steps to disassemble your scuba system. -
ANSWER-1. Remove accessories and weights
2. Decompress the system: Turn the valve knob completely clockwise. Decompress one
of the second gauges (purge button or the auto inflator button to vent air remaining in
the hoses)
3. Detach the LP hose from the inflator assembly by pulling the collar back on the quick
disconnect. Unscrew the yoke knob until the first stage can slip off the top of the valve.
4. Undo the straps and remove the BCD from the cylinder.
5. Rinse off gear and fill and dump BCD
Describe how to perform a giant stride entry off a boat. - ANSWER-Stand on the edge
of the dive platform, check the water below to make sure it is clear of other divers, put
your right hand over your mask and regulator and your left hand over your weight belt
