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Divemaster Final Exam A part 2 with Complete Solutions
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Divemaster Final Exam A part 2 with Complete Solutions
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Divemaster Final Exam A part 2 withComplete Solutions
A _______________ exists when relatively warm, low-density surface water is
separated from cool, high-density deep water.
a. freshwater layer
b. thermocline
c. downwelling
d. rip current - ANSWER-d. thermocline
A day after strong winds drive surface waters offshore, you notice that water conditions
become clear and cool. This is likely due to:
a. downwelling
b. extreme tides.
c. a longshore current.
d. upwelling - ANSWER-d. upweling
A diver complains of a "wet" breathing regulator. What might be causing the problem?
a. An exhaust valve that doesn't seal.
b. A small tear in the mouthpiece.
c. An open downstream valve.
d. Either a or b. - ANSWER-d. Either a or b.
A diver completes a 28 minute dive at 79 feet and after waiting for 39 minutes on the
surface makes a second dive to 59 feet for 25 minutes. What is the diver's pressure
group after the second dive?
a. S
b. T
c. U
d. P - ANSWER-ASK BROOKE
, A diver suffering from hypothermia may have which of these signs and symptoms?
a. Uncontrollable shivering
b. Slowed mental processes
c. Appear drowsy, uncoordinated and forgetful
d. All of the above. - ANSWER-d. All of the above.
A regulator malfunctions and starts to free flow. This is due to it's _____________
design.
a. fail safe (down stream)
b. demand valve
c. balanced piston
d. open circuit - ANSWER-a fail safe (down stream)
A regulator's first stage reduces ________________ pressure from the cylinder to
intermediate pressure and the second stage delvers air to the diver at _____________
ambient pressure.
a. high / ambient
b. air / ambient
c. ambient / high
d. air / low - ANSWER-a. high / ambient
An hour after surfacing from a deep dive, a diver complains of fatigue and numbness in
one shoulder. This diver should seek medical attention because the diver may have:
a. carried equipment that was too heavy.
b. decompression illness.
c. contaminated air poisoning
d. overexertion - ANSWER-b. decompression isllness
Approximately how much denser is the air you breathe at depth of 30 metres/ 99 feet as
compared to the surface?
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