Exam (elaborations)
Dive Master NAUI exam with correct answers
- Course
- Institution
Dive Master NAUI exam with correct answers
[Show more]
Seller
Follow
Content preview
Dive Master NAUI exam with correctanswers
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.
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
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 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 Lectphilip. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
76800 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now