types of decompression

Question 1

What is slow decompression?

Answer 1

gradual loss of cabin pressure

Question 2

How long in slow decompression does it take to equalize?

Answer 2

10secs or more

Question 3

Causes of slow decompression?

Answer 3

small cracks in window/fuselage, damaged door/window seal, minor fault with pressure system

Question 4

Signs of slow decompression?

Answer 4

-appearance of oxygen masks
-ears popping
-euphoria

Question 5

How long in rapid decompression does it take to equalize?

Answer 5

1-10secs

Question 6

Causes of rapid/explosive decompression?

Answer 6

pressure system fails suddenly, fuselage structure damaged.

Question 7

Signs of rapid/explosive decompression?

Answer 7

explosive noise, masks drop, pain in ear/sinuses, mist, thin cold air, disturbance of dust, rapid breathing, boiling of liquids, belching, passing wind, bursting of carbonated items. On airbus smell of burning.

Question 8

How long in explosive decompression does it take to equalize?

Answer 8

less than 1sec