(2025 EXAM) DDS SSGN SEC 4,5, Safety Summary

Question 1

1. Max speed and depth to launch sdv?

Answer 1

1.5 knots/130fsw

Question 2

When is a vent required for CO2?

Answer 2

20,000 PPM

Question 3

Hangar losing depth, what is the immediate action?

Answer 3

Stop Lock

Question 4

Minimum manning for DDS whenever LOC upper hatch is shut?

Answer 4

2 operators

Question 5

Purpose of Dive Supervisor giving a “MARK” when dogging door?

Answer 5

Prevent damage to the door

Question 6

Depth Increments to report to Dive Sup during pressurization/depressurization?

Answer 6

10 FSW

Question 7

Minimum head pressure?

Answer 7

10 FSW

Question 8

Do not operate electrical switches in the hyperbaric chamber while the oxygen pp is above?

Answer 8

22% equivalent

Question 9

Max depth of Transfer Trunk?

Answer 9

165 FSW

Question 10

When Ships rolls are greater ____ degrees the LOC upper hatch shall not be opened except in emergency?

Answer 10

10 degrees

Question 11

SEP-7?

Answer 11

Fire Casualty

Question 12

Sep-13?

Answer 12

Hangar emergency bailout

Question 13

What lights at night, what lights during day?

Answer 13

White at night, red during day

Question 14

SEP-18?

Answer 14

Unconscious Trunk Operator

Question 15

SEP-22?

Answer 15

Injured Diver in the hangar