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NAUI ADVANCED SCUBA FINAL REVIEW EXAM QUESTIONS AND ANSWERS.
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NAUI ADVANCED SCUBA FINAL REVIEW EXAM QUESTIONS AND ANSWERS.
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NAUI ADVANCEDSCUBA FINAL
REVIEW EXAM
QUESTIONS AND
ANSWERS
Which principle represents one basis for the
hydrostatic testing of scuba cylinders? - answer
Permanent Expansion
Two cylinder valves in common use today are: -
answer the K valve and the DIN valve
Which internal valve designs are available in the
first stage of scuba regulators? - answer Piston;
Diaphragm
, Which regulator second stage design use air
pressure rather than mechanical leverage to open
the main valve? - answer Pilot
An air compressor used for filling scuba cylinders
operates by the principle of: - answer Boyle's law
The highest tides are called _______ tides, and the
lowest tides are called ________ tides . - answer
spring; neap
Water of equal temperature at all levels is most
likely to be found in a lake during the: - answer
spring
The four basic plant and animal life zones in the
ocean are: - answer littoral, plantonic, nektonic,
benthic
Sychophozoans, or true jellyfish, possess stinging
cells within their tentacles called ______. - answer
nematocysts
The horizontal boundary between waters of
differing salinity is defined as: - answer a halocline
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