IDC PE 2 Flashcards
1
Q
Why put argon in a drysuit?
A
its 25% more dense than air - better insulator
2
Q
conduction vs convection
A
conduction - physical contact
convection - liquid
3
Q
mask to water
A
light changes speed
4
Q
heat stroke vs heat exhaustion
A
stroke = serious red, hot, dry
exhaustion = sweaty!, cold, clammy
5
Q
DCS Symptoms
A
48 hrs
6
Q
co2 narcosis
A
co2 build-up can cause unconscious
7
Q
+ on tank
A
+
steel
10% over pressure test
8
Q
diaphragm/ piston valves found in?
A
1st stage
9
Q
lift bag weight and speed
A
45kg
slightly more
10
Q
rdp
A
Beginning of descent to the beginning of ascent to the surface
