DIVE MASTER NAUI EXAM LATEST UPDATE ACTUAL
QUESTIONS AND ANSWERS WITH COMPLETE
SOLUTIONS GRADE A 2024
What pressure will a scuba cylinder with a rated working pressure
of 3000 psig (207 bar), be exposed to during a hydrostatic test? -
CORRECT ANSWER >>>>5000 psig (345 bar)
Which principle represents one basis for the hydrostatic testing of
scuba cylinders? - CORRECT ANSWER >>>>Permanent expansion
If a visual cylinder inspection reveals corrosion inside a scuba
cylinder, it may require cleaning by a process called: - CORRECT
ANSWER >>>>Tumbling
Which of the following is considered proper care of a scuba
cylinder? - CORRECT ANSWER >>>>Preventing moisture from
entering the cylinder.
Two cylinder valves in common use today are: - CORRECT ANSWER
>>>>The K-valve and DIN valve.
,2|Page
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? - CORRECT ANSWER >>>>Y valve
Which internal valve designs are available in the first stage of scuba
regulators? - CORRECT ANSWER >>>>Piston; Diaphragm
Which valve is unaffected by cylinder air pressure with regard to
the force needed to operate the valve? - CORRECT ANSWER
>>>>Balanced
Which regulator second stage design uses air pressure rather than
mechanical leverage to open the main valve? - CORRECT ANSWER
>>>>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? -
CORRECT ANSWER >>>>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. - CORRECT ANSWER >>>>high; low
Which diving instrument incorporates a Bourdon tube mechanism?
- CORRECT ANSWER >>>>Cylinder pressure gauges
Two benefits derived from using an electronic dive computer are
_____. - CORRECT ANSWER >>>>Accurate monitoring of ascent rate
and, if executing a multi-level diving profile, avoidance of the
maximum time/depth penalty
, 3|Page
Green discoloration on the first stage of a scuba regulator indicates
_____. - CORRECT ANSWER >>>>Water has most likely entered the
first stage
An air compressor used for filling scuba cylinders operates by the
principle of _____. - CORRECT ANSWER >>>>Boyle's Law
Dry suits form a waterproof barrier, but require undergarments to
be effective in cold water - CORRECT ANSWER >>>>True
In order to make an informed decision on equipment purchase, you
need to have a solid educational background concerning the _____
of diving equipment: - CORRECT ANSWER >>>>Types, Method of
operation, Care and maintenance
The distance between successive wave crests is defined as _____. -
CORRECT ANSWER >>>>Wavelength
The highest tides are called _____ tides, and the lowest tides are
called _____ tides. - CORRECT ANSWER >>>>spring; neap
Water rocking back and forth in a lake or a bay is defined as _____.
- CORRECT ANSWER >>>>Seiching
The effect of the moon on tidal action is about _____. - CORRECT
ANSWER >>>>Twice the effect of the sun
The type of breaking wave that produces the greatest force when
breaking is the _____ breaker. - CORRECT ANSWER >>>>Plunging
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller keithdaniel. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $24.99. You're not tied to anything after your purchase.
