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 Pis...
NAUI ADVANCED SCUBA FINAL REVIEW
100% CORRECT
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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