NAUI Master Diver Scuba Final Exam-
Graded A
DIVE EQUIPMENT Open-circuit demand scuba is most commonly used by
recreationals divers, closed-circuit and semi-closed rebreathers now available -
ANSWER-True
DO NOT GET MOISTURE INTO THE CYLINDER. Water will cause corrosion by
combining with high pressure oxygen inside the cylinder. - ANSWER-True
^^ Prolonged storage of air in a steel cylinder containing water can be bad. Oxidation
process will consum some of the oxygen in the air, leaving higher nitrogen
concentration - ANSWER-True
Open bourdon gauge least expensive but most problems w/ corrosion - the small one.
sealed "" basically the same but more protection. Oil filled "" oil filled case, avoid leaving
in sun due to leakage and expansion - ANSWER-true
two basic types of computers - tissue baed and table based. If a computer fails ascend
w/ safety stop - ANSWER-true
air compressors operate under Boyles law - p and v - ANSWER-True
DIVE ENVIRONMENT wavelength is the horizontal distance between successsive
crests, period is the time required for two successive crests to pass a given point. Fetch
is the distance the wnid blows overthe water - ANSWER-true
Spilling breakers waves break far from shore and all the way back to beach. Plunging
breakers waves steepen quicly and break suddenly, most hazardous. - ANSWER-true
Spring tides high, neap low. Diurnal one high and low tide every 24 hrs and 50 minutes.
semi-diurnal two "" change every six hours. mixed combination. swim perpendicular to
shore if caught - ANSWER-true
currents are waves approaching shore at an angle that flows parallel to shore.
Longshore currents move you down the beach, can often be detected. Four types of rip
currents: permanent, fixed, flash, traveling. The set and drift of a current refer to
currents directions and velocity. Always begin a dive against a current unless trained -
ANSWER-True
, 4 plant/animal life zones: intertidal, planktonic (plants), nektonic (animals), benthic
(bottom dwellers) - ANSWER-True
DIVING PHYSICS - Rankine scale absolute zero is -459.67 F...Density is mass per unit
volume or m/v. Archimedes Principle - an object wholle or partially immersed in a fluid is
buoyed up by a force equal to weight of fluid displaced, and ocean water is 2.5% denser
than fresh water so more buoyant.... Absolute pressure = depth of water/depth definition
of 1 atm + 1 atm....Daltons law the whole is equal to the sum of the parts, like partial
pressure: Ptotal= P1 + P2 + P3. Boyles law volume of gas inversely proportional to
pressure. P1V1=P2V2 this may include squeezes, equalization of air spaces, reverse
blocks, and lung rupture injuries. Charles law volume of gas proportional to absolute
temp. V1/T1 = V2/T2. General gas P1V1/T1 = "" - ANSWER-True
Objects in maask appear larger 4/3rds and closer. In water sound travels four times
faster which makes it hard to determine location. Heat transferred by conduction,
convection, or radiation - ANSWER-True
DIVING PHYSIOLOGY - near drowning is drowning w/ at least 24 hrs of survival,
drowning is death within 24 hours. Narcosis is from breathing nitrogen gas under
pressure, drunk. Decompression sickness/DCS if stay too long or ascend too quick
bubbles in body nitrogen. Limb bends is joint pain commonly due to DCS. Neurolical
bends "". Skin bends itchy, inner ear bends vertigo, chokes is pulmonary DCS usually
from flying blocks circulation to lungs. FIRST AID: 100% O2, transport to nearest
chamber. Air embolism is bubbles scaping alveoli and block heart, brain, etc.
Hypothermia is temp below 95F. Vertigo ear drum equalization cold air rushes into
middle earpressure change. Don't dive while pregnant. - ANSWER-True
DECOMPRESSION AND RECOMPRESSION - ascent rate is 30 ft per min. If a diver is
cold use next greatest dive time - ANSWER-True
rescue, navigation.... NIGHT/LIMITED 10 ft or less, tannin brownish chemicals from
trees, line up shore line lights, night divers use a minimum of two lights per diver one as
backup. SIGNALS: Ok circle, distress rapid swing in overhead arc, attention back and
forth side to side - ANSWER-True
SEARCH AND LIGHT SALVAGE - counting arm spans, kick cycles (one complete kick
of both legs on top), reference lines - ANSWER-True
TECHNIQUES - recreational equipment generally good to 130 ft - ANSWER-True
TECHNICAL - EANx reccomends limit O2 of 1.4ata - ANSWER-True
LEADERSHIP FUNDAMENTALS we're called training assistants before dive master.
lead by example, what you do and say. Def: is a buffer between instructor and students
ask q's, only work to your level of training and don't be negligent. Waiver and release
form so they are assuming the risk. Effective leaders and organizaed and punctual and
Graded A
DIVE EQUIPMENT Open-circuit demand scuba is most commonly used by
recreationals divers, closed-circuit and semi-closed rebreathers now available -
ANSWER-True
DO NOT GET MOISTURE INTO THE CYLINDER. Water will cause corrosion by
combining with high pressure oxygen inside the cylinder. - ANSWER-True
^^ Prolonged storage of air in a steel cylinder containing water can be bad. Oxidation
process will consum some of the oxygen in the air, leaving higher nitrogen
concentration - ANSWER-True
Open bourdon gauge least expensive but most problems w/ corrosion - the small one.
sealed "" basically the same but more protection. Oil filled "" oil filled case, avoid leaving
in sun due to leakage and expansion - ANSWER-true
two basic types of computers - tissue baed and table based. If a computer fails ascend
w/ safety stop - ANSWER-true
air compressors operate under Boyles law - p and v - ANSWER-True
DIVE ENVIRONMENT wavelength is the horizontal distance between successsive
crests, period is the time required for two successive crests to pass a given point. Fetch
is the distance the wnid blows overthe water - ANSWER-true
Spilling breakers waves break far from shore and all the way back to beach. Plunging
breakers waves steepen quicly and break suddenly, most hazardous. - ANSWER-true
Spring tides high, neap low. Diurnal one high and low tide every 24 hrs and 50 minutes.
semi-diurnal two "" change every six hours. mixed combination. swim perpendicular to
shore if caught - ANSWER-true
currents are waves approaching shore at an angle that flows parallel to shore.
Longshore currents move you down the beach, can often be detected. Four types of rip
currents: permanent, fixed, flash, traveling. The set and drift of a current refer to
currents directions and velocity. Always begin a dive against a current unless trained -
ANSWER-True
, 4 plant/animal life zones: intertidal, planktonic (plants), nektonic (animals), benthic
(bottom dwellers) - ANSWER-True
DIVING PHYSICS - Rankine scale absolute zero is -459.67 F...Density is mass per unit
volume or m/v. Archimedes Principle - an object wholle or partially immersed in a fluid is
buoyed up by a force equal to weight of fluid displaced, and ocean water is 2.5% denser
than fresh water so more buoyant.... Absolute pressure = depth of water/depth definition
of 1 atm + 1 atm....Daltons law the whole is equal to the sum of the parts, like partial
pressure: Ptotal= P1 + P2 + P3. Boyles law volume of gas inversely proportional to
pressure. P1V1=P2V2 this may include squeezes, equalization of air spaces, reverse
blocks, and lung rupture injuries. Charles law volume of gas proportional to absolute
temp. V1/T1 = V2/T2. General gas P1V1/T1 = "" - ANSWER-True
Objects in maask appear larger 4/3rds and closer. In water sound travels four times
faster which makes it hard to determine location. Heat transferred by conduction,
convection, or radiation - ANSWER-True
DIVING PHYSIOLOGY - near drowning is drowning w/ at least 24 hrs of survival,
drowning is death within 24 hours. Narcosis is from breathing nitrogen gas under
pressure, drunk. Decompression sickness/DCS if stay too long or ascend too quick
bubbles in body nitrogen. Limb bends is joint pain commonly due to DCS. Neurolical
bends "". Skin bends itchy, inner ear bends vertigo, chokes is pulmonary DCS usually
from flying blocks circulation to lungs. FIRST AID: 100% O2, transport to nearest
chamber. Air embolism is bubbles scaping alveoli and block heart, brain, etc.
Hypothermia is temp below 95F. Vertigo ear drum equalization cold air rushes into
middle earpressure change. Don't dive while pregnant. - ANSWER-True
DECOMPRESSION AND RECOMPRESSION - ascent rate is 30 ft per min. If a diver is
cold use next greatest dive time - ANSWER-True
rescue, navigation.... NIGHT/LIMITED 10 ft or less, tannin brownish chemicals from
trees, line up shore line lights, night divers use a minimum of two lights per diver one as
backup. SIGNALS: Ok circle, distress rapid swing in overhead arc, attention back and
forth side to side - ANSWER-True
SEARCH AND LIGHT SALVAGE - counting arm spans, kick cycles (one complete kick
of both legs on top), reference lines - ANSWER-True
TECHNIQUES - recreational equipment generally good to 130 ft - ANSWER-True
TECHNICAL - EANx reccomends limit O2 of 1.4ata - ANSWER-True
LEADERSHIP FUNDAMENTALS we're called training assistants before dive master.
lead by example, what you do and say. Def: is a buffer between instructor and students
ask q's, only work to your level of training and don't be negligent. Waiver and release
form so they are assuming the risk. Effective leaders and organizaed and punctual and
