Dive Master NAUI Exam Latest Update Actual Questions and Answers with complete solution

Dive Master NAUI Exam Latest Update Actual Questions and Answers with complete solution What pressure will a scuba cylinder with a rated working pressure of 3000 psig (207 bar), be exposed to during a hydrostatic test? - Answer ️️ -5000 psig (345 bar) Which principle represents one basis for the hydrostatic testing of scuba cylinders? - Answer ️️ -Permanent expansion If a visual cylinder inspection reveals corrosion inside a scuba cylinder, it may require cleaning by a process called: - Answer ️️ -Tumbling Which of the following is considered proper care of a scuba cylinder? - Answer ️️ -Preventing moisture from entering the cylinder. Two cylinder valves in common use today are: - 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? - Answer ️️ -Y valve Which internal valve designs are available in the first stage of scuba regulators? - Answer ️️ - Piston; Diaphragm Which valve is unaffected by cylinder air pressure with regard to the force needed to operate the valve? - Answer ️️ -Balanced Which regulator second stage design uses air pressure rather than mechanical leverage to open the main valve? - 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? - 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. - Answer ️️ -high; low Which diving instrument incorporates a Bourdon tube mechanism? - Answer ️️ -Cylinder pressure gauges Two benefits derived from using an electronic dive computer are _____. - 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 _____. - Answer ️️ -Water has most likely entered the first stage An air compressor used for filling scuba cylinders operates by the principle of _____. - Answer ️️ -Boyle's L