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BSAC Dive Leader > Chapter1 > Flashcards

Chapter1 Flashcards

1
Q

Risks of Reef and Wall diving

A

Loss of bouyancy
Currents (including vertical)
Going deeper than intended

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2
Q

Risks of Wreck Diving

A 
Entanglement
Low viz
Tide
Sharp metal
DSMB torch knife
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3
Q

No clear surface: safeguards

A 
Agreed by buddy pair
Exit point kept in view
Experienced buddy
Rule of thirds
Backup gas
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4
Q

Risks of drift diving

A 
Buddy separation
Surface cover separation
Viz
Turbulence/up and down currents
Entanglement of diver or SMB
Cold (not exerting)
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5
Q

Safeguards for drift diving

A 
Avoid rough water
Obstructions
Viz
Variable depths
DSMB
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6
Q

Risks of night diving

A

Separation

Disorientation

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7
Q

Safeguard for night diving

A 
Known site
Shallow dive
Good viz
Communication - torch and backup
Light on SMB
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8
Q

Deep diving risks

A 
DCI
Narcosis
Gas density = more effort to breathe
More gas
Dark
Deco soft ceiling
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9
Q

Deep diving safeguards

A

Experience
Depth time and deco planning
Narcosis
Backup gas

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10
Q

Diving with inexperienced buddy

A 
Brief basics - dry suit squeeze, ear clearing etc
Use gas more quickly
Don't rush 
Assist kit up
Role model
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11
Q

Key elements of risk assessment

A

Personal limits
Comfort factor
Correct equipment

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12
Q

What are 3 main divisions of incident procedure sheet

A

Outline of incident procedure + contact details
Procedure for dealing with DCI
Space for dive history

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13
Q

What questions does a Dive Manager answer

A 
Why - objective of dive
Who are the divers - experience
Where - site and suitability
When - date and time
What else required - support, equipment
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14
Q

What chart identifies Admiralty symbols

A

5011

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15
Q

Stress signs in buddy

A

Nervous/reluctant
Excuses
Repeated questions
Slow kitting up/fiddling

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16
Q

How to anticipate problems during dive

A

Monitor air/depth
Monitor buddy
Resolve small problems before become big
Terminate dive early

17
Q

Factors aid incident prevention

A 
Training and practice
Build up of experience
Buddy system
Well maintained equip
Planning and monitoring
18
Q

How to ensure casualty secure on surface

A

Positively buoyant

Face clear of water

19
Q

Priorities of first aid

A

DR ABC
Severe Bleeding
DCI
Other

20
Q

Helicopter lift techniques

A

High line (obstruction/boat motion) don’t tie or pull line
Direct - wind 20 deg PORT BOW
Alt small boat technique - boat stationery

21
Q

How far do you compress an adult’s chest

A

4-5cm

22
Q

After vomiting

A

Check airway clear

23
Q

How often change sides for Recovery How position

A

Every 30m

24
Q

Where should you be positioned to use a pocket mask during BLS

A

Above casualty’s head

25
Q

In what way can a positive pressure resuscitation mask set to too high a flow rate harm a casualty?

A

Inflating the casualty’s stomach, causing stomach contents to be displaced into the throat

26
Q

What are the benefits of a reservoir mask over a pocket mask?

A

It gives a higher oxygen concentration

27
Q

Which of the following are alternative names for a reservoir mask?

A

Hudson

Non-rebreathing

28
Q

Which is the correct way to use a reservoir mask?

A

Fill the bag before use

29
Q

What feature must a storage case have if it is to be used to house an oxygen cylinder?

A

A pressure release valve

30
Q

Roughly what proportion of all diving casualties is likely to require rescue breaths?

A

1/10

31
Q

Treat second casualty simultaneously or serious one first

A

Simultaneously

32
Q

Why should divers administer oxygen only to other divers?

A

The medical requirements to be a diver are such that a diver will not be harmed by oxygen administration

People with conditions such as chronic lung diseases may suffer adversely, possibly to a fatal extent, by the administration of oxygen

Divers could be sued for negligence if the casualty is not a diver suffering a diving related problem

33
Q

Which of the following makes for the best transit, other things being equal?

A

Nearest feature closer to the eye than to the other feature

34
Q

Who has the final say about when it is unsafe to dive?

A

The skipper and/or the dive manager

35
Q

How should surplus line be dealt with when constructing a shot line?

A

Coil or bag it close to the buoy, or let it float as a ‘trail line’

36
Q

Which of the following can be used for fixing attachments to the middle of a shotline?

A

Karabiner
Rolling Hitch
Prusik knot

BSAC Dive Leader (1 decks)

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