Legislation

Question 1

Name the current diving regulations

Answer 1

SI2776
1997 Diving at work regulations
ACOPS

Question 2

Name the diving technique not acceptable in the North Sea

Answer 2

SCUBA

Question 3

What is the bottle colour of industrial grade o2

Answer 3

Black bottle / black neck

Question 4

What is the colour of zero gas?

Answer 4

Brown bottle / brown top

Question 5

BSEN 12021 limits
Co2 / CO / Oil / Water

Answer 5

500 ppm
5 ppm
5mg / m3
LP 40 to 200 50mg / m3
HP >200 35mg / m3

Question 6

Compulsory to have a DDC on site after what depth?

Answer 6

All offshore dive sites

Question 7

Under UK and Norwegian legislation how often must depth gauges need recertification?

Answer 7

Every 6 months

Question 8

Under UK legislation diving plant and equipment should be checked before every dive. What is the maximum amount of time between checks?

Answer 8

6 hours

Question 9

Divers must have gas heating past how deep?

Answer 9

150 meters

Question 10

Maximum permitted 02 % in a chamber is?

Answer 10

23%

Question 11

Maximum depth for in water breathing in Norway is?

Answer 11

6.1 msw

Question 12

When does oxygen theoretically become toxic?

Answer 12

2.8 bar PPo2

Question 13

One stand by diver is required for every how many divers in the water?

Answer 13

Two

Question 14

In Norway DMT qualifications be held by?

Answer 14

One diver, other than the one in the water, and the dive supervisor.

Question 15

Who has the authority to start a dive?

Answer 15

The diving supervisor

Question 16

A diving operation ends when?

Answer 16

None of the dive team are likely to need therapeutic recompression.

Question 17

A diving operation must be broken down into sections able to be supervised by how many people?

Answer 17

one person

Question 18

The blackbox recording should be kept for at least?

Answer 18

24 hours

Question 19

A tending point is 22m from a thruster. How much umbilical is permitted,

Answer 19

17 meters

Question 20

A diver is delayed leaving bottom on your deepest table, what do you do?

Answer 20

Decompress on the longest table available and treat him on USN Table 5

Question 21

When connecting a gas supply to the diver you should?

Answer 21

Analyse at the quad, then analyse at the panel.

Question 22

The mobile antenna on an Artimis system is where?

Answer 22

On the vessel

Question 23

At a 10 minute deco stop your diver is complaining about DCI like symptoms… what should you do?

Answer 23

Bring him to surface and treat him on a Table 6

Question 24

If divers umbilical is 75 meters long how long should the stand by umbilical be?

Answer 24

77 meters

Question 25

During diving operations from a DP vessel there must be how many reference systems online?

Answer 25

3 of which two must be different

Question 26

A DP vessel has a draft of 6m, and the bell deployment point is 18 meters from the nearest thruster. If the bell is at 30 msw, what is the maximum permitted length of divers umbilical?

Answer 26

25 meters

Question 27

On the Beaufort scale a gale is what force?

Answer 27

Force 8

Question 28

What is the maximum heading change in one step on a DP vessel?

Answer 28

15 degrees

Question 29

An imminent gale warning is within

Answer 29

6 hours

Question 30

The voltage of hand tools offshore is normally?

Answer 30

110 volt

Question 31

When A tautwire is used in shallow water the footprint is....

Answer 31

Decreased

Question 32

Describe a zone one area

Answer 32

An explosive air and gas mixture unlikely to occur in normal conditions

Question 33

In air diving operations you must have how much o2 held in reserve?

Answer 33

90 m3

Question 34

A yellow light on the DP alarm is when the thrusters are over how many % of their capacity?

Answer 34

80%

Question 35

Under normal operating conditions the pressure for water jetting is what pressure?

Answer 35

4000 - 8000

Question 36

What is the maximum duration for a diver during two man bell runs?

Answer 36

4 hours

Question 37

How many types of reference system is available for a DP system?

Answer 37

4

Question 38

A DSV said to have full redundancy is what class?

Answer 38

Class 2

Question 39

What is the recommended PPo2 of a bailout?

Answer 39

1.4

Question 40

Plant and equipment (other than cylinders and pressure vessels) must be tested every?

Answer 40

6 months