Dive Master NAUI Exam Questions With Solutions 100% Correct
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Course
NAUI Scuba
Institution
NAUI Scuba
Dive Master NAUI Exam Questions With
Solutions 100% Correct
What pressure will a scuba cylinder with a rated working pressure of 3000 psig (207 bar), be
exposed to during a hydrostatic test? 5000 psig (345 bar)
Which principle represents one basis for the hydrostatic testing of scuba cylinde...
Dive Master NAUI Exam Questions With
Solutions 100% Correct
What pressure will a scuba cylinder with a rated working pressure of 3000 psig (207 bar), be
exposed to during a hydrostatic test? 5000 psig (345 bar)
Which principle represents one basis for the hydrostatic testing of scuba cylinders?
Permanent expansion
If a visual cylinder inspection reveals corrosion inside a scuba cylinder, it may require cleaning
by a process called: Tumbling
Which of the following is considered proper care of a scuba cylinder? Preventing
moisture from entering the cylinder.
Two cylinder valves in common use today are: The K-valve and DIN valve.
Which valve is an example of a special scuba valve that is required for certain types of specialty
diving such as deep diving with a single cylinder? Y valve
, Dive Master NAUI Exam Questions With
Solutions 100% Correct
Which internal valve designs are available in the first stage of scuba regulators? Piston;
Diaphragm
Which valve is unaffected by cylinder air pressure with regard to the force needed to operate
the valve? Balanced
Which regulator second stage design uses air pressure rather than mechanical leverage to open
the main valve? Pilot
In the event of a regulator first stage malfunction, which type of valve design would be likely to
eliminate air flow to the diver? Upstream
When considering a regulator for purchase or use, an important point to remember is that
certain regulators may not be capable of delivering ______ flow rates at ______ cylinder
pressure during an air sharing emergency. high; low
, Dive Master NAUI Exam Questions With
Solutions 100% Correct
Which diving instrument incorporates a Bourdon tube mechanism? Cylinder pressure
gauges
Two benefits derived from using an electronic dive computer are _____. Accurate
monitoring of ascent rate and, if executing a multi-level diving profile, avoidance of the
maximum time/depth penalty
Green discoloration on the first stage of a scuba regulator indicates _____. Water has
most likely entered the first stage
An air compressor used for filling scuba cylinders operates by the principle of _____.
Boyle's Law
Dry suits form a waterproof barrier, but require undergarments to be effective in cold water
True
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