PST Exit Exam • Set 9 Question 23 of 30
What is the primary danger of hypothermia when immersed in cold sea water (< 15 degrees C)?
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Direct Answer
Option A: Rapid loss of body core heat leading to exhaustion, unconsciousness, cardiac arrest, and drowning
Cold water conducts heat 25 times faster than air; core cooling below 35 deg C causes muscular paralysis, ventricular fibrillation, and death.
All Options
A
Rapid loss of body core heat leading to exhaustion, unconsciousness, cardiac arrest, and drowning
(Correct Answer)
B
Sunburn and heat stroke
C
Immediate bone fractures
D
Loss of vision within 2 minutes
Detailed Explanation & Context
Cold water conducts heat 25 times faster than air; core cooling below 35 deg C causes muscular paralysis, ventricular fibrillation, and death.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Survival Techniques (PST).
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