Dive Leader Knowledge DT12 - The role of the Dive Manager

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* 1. Which of the following is a correct statement about the role of the dive manager?

The dive manager is overall supervisor on the day of the dive

The dive manager should perform all tasks personally

The person who books the boats and accommodation automatically becomes the dive manager

If the branch has a standard risk assessment for the dive site there is no need for the dive manager to assess risks

The dive manager should always appoint a coxswain to drive each branch boat, and should not drive themselves

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* 2. What is the purpose of a dive manager's checklist? Please select all that apply.

It helps confirm that everything is in place before leaving for the dive site

It acts as a handout for divers going on the dive trip

It is used to direct assistants to whom the dive manager is delegating tasks

It supports dive management on the actual dive

It contains all the information needed for running the dive

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* 3. What headings should the dive manager's checklist include? Please select all that apply.

Site information items

Equipment items needed for the dive

List of divers and their qualifications

Timetable

Local information

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* 4. Which of the following statements reflects your BSAC training about giving a dive briefing? Please select all that apply.

Pictures/drawings are a bad way of describing a dive site

Mention any expected currents and their direction relative to the site

Always insist on a maximum depth

Describe how to locate points of interest

State who is diving with who.

Always let the divers make their own decisions about whether or not to use an SMB

When boat diving, the location of the oxygen and first-aid kit can be pointed out during the skipper/coxswain brief

If appropriate, the dive manager should remind divers about marine conservation, wreck protection, and general behaviour issues

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* 5. Which of the following statements reflects your BSAC training about managing a branch shore or small boat dive? Please select all that apply.

Safety is all that matters, so do not worry about timings

You must allow plenty of time for briefings and checks so that diving happens on time without compromising safety

The Assistant Dive Manager should dive with the Dive Manager

The Assistant Dive Manager should take over whilst the Dive Manager is diving

When timing is important, divers should be given adequate notice to allow them to be ready to dive in time

Recording details about each buddy pair on the dive slate or log can safely be left until all the diving has been completed

If the dive plan is sound and the divers have been properly briefed, there is no need to carry out any monitoring whilst diving takes place

The Dive Manager and coxwain(s) need to work together closely.

It is correct dive site etiquette to ignore other groups on the site. Just do your own thing.

You should cooperate with other groups on the site and watch out for their divers.

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* 6. Which of the following statements reflects your BSAC training about charter boat diving? Please select all that apply.

The skipper is in charge of all diving activities and is therefore the dive manager

The dive manager is in charge for the day and, having assessed the conditions, should direct the skipper as to where, when and how diving will take place

Effective liaison with the skipper is very important

Always tell the divers to put their equipment wherever they can find space, as soon as they arrive

Stow equipment when and where the skipper directs, preferably with buddy pairs next to one another

The dive manager should find out the location of safety equipment, entry and exit procedures, and any house rules and give a safety brief to the divers

Skippers are required to give a safety brief to all their customers.

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

The skipper

The dive manager

The skipper and/or the dive manager

Each diver

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* 8. Which of the following statements reflects your BSAC training about the dive manager's role after diving? Please select all that apply.

Once all the divers are safely aboard, the dive logs have served their purpose, so any gaps can go unfilled, and they can be thrown away

Collate all the dive log information and pass the logs to the Diving Officer

If you contacted the coastguard at the start of diving, notify them of your safe return

Leave washing down and packing of equipment to those who are transporting it

Organise people to help with washing down and packing of equipment, if necessary

Leave collecting money due from divers until another day

Collect money due from divers

Report any damage to or problems with branch equipment back to the Boat or Equipment Officer

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* 9. Which of the following can provide all of these functions: a marked entry/exit point; a clear point or area for the boat to patrol; the shortest possible route to and from the surface/dive site; comfort during ascent/descent for less experienced divers and/or in restricted visibility; security for decompression stops; and a datum point for surface or underwater searches?

An SMB

A DSMB

A pair of transits

A shot line

The boat's anchor line

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* 10. What are the advantages of a top-tensioned shot? Please select all that apply.

Simple construction

Adjusts with rise and fall of tide

Provides near vertical line

Nothing to go wrong

Buoy shows more accurate position of dive site

Counterweight can get tangled or stuck

May not work in current or wind, or if divers pull on main line

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* 11. What are the disadvantages of a top-tensioned shot? Please select all that apply.

Simple construction

Adjusts with rise and fall of tide

Provides near vertical line

Nothing to go wrong

Buoy shows accurate position of dive site

Counterweight can get tangled or stuck

May not work in current or wind, or if divers pull on main line

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* 12. A shot line should be made with rope of at least 15mm diameter. Why?

So that it is strong enough

So that it is visible underwater

So that it is comfortable to handle

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* 13. Which of the following statements about constructing shot lines agrees with your BSAC training? Please select all that apply.

The buoy should have 50% more buoyancy than the sum of the weights which it supports

The buoy should normally have a buoyancy of at least 50kg

A 25kg weight is normally big enough

Grapnels are unsuitable for shotting wrecks

The counterweight on a top-tensioned shot should be as light as possible

A tide buoy can indicate the strength and direction of the current

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

Coil it up near the shot weight

Coil it up in mid-water, away from the buoy and the weight

Cut it off

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

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* 15. Which of the following can be used for fixing attachments to the middle of a shotline? Please select all that apply.

Karabiner

Knotted sheepshank

Rolling hitch

Prusik knot

Chain sennet

Coiling

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* 16. Which of the following statements can be used for shortening a shotline? Please select all that apply.

Karabiner

Knotted sheepshank

Rolling hitch

Prusik knot

Chain sennet

Coiling

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* 17. Which of the following statements reflects your BSAC training about deploying a shot line? Please select all that apply.

Prepare the shot line well before reaching the dive site

Prepare the shot line once you have reached the dive site

Set the shot line out on deck with the weight underneath everything else

Set the shot line out on deck with the weight clear or on top

The shot 'deployer' should throw the weight in on command, then feed the line out by hand

The shot 'deployer' should throw the weight in on command, then keep clear of the line as it runs out

If a tide is running, head into the tide and drop the shot as soon as the site begins to show on the echo sounder

If a tide is running, head into the tide, and drop the shot slightly up tide of the site

If a tide is running, head into the tide, and drop the shot slightly down tide of the site

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* 18. What method can be employed on any boat to ease the task of recovering the shot line?

Use a winch

Use a block and tackle

Use the strength of several divers, in 'tug-of-war' format, to heave on the rope

Use a lifting bag

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* 19. What is the difference between controlled recovery and buoyant recovery?

Controlled recovery takes longer

Controlled recovery requires a lifting bag that will lift a considerably greater amount than the shot weight

Buoyant recovery uses a lifting bag that will lift a considerably greater amount than the shot weight

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* 20. What are you advised to be careful about when recovering the shot after either type of assisted lift?

Dropping the weight on your foot

Breaking the line

Spilling air from the bag prematurely

Puncturing the float

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* 21. Which formula is recommended as a guide to dealing with emergencies?

Airway Breathing Circulation

Stop Look Listen

Act Assess Plan

Ready Fire Aim

Assess Plan Act

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* 22. How can you use a weighted SMB to mark a position from the surface?

Pull out enough line to reach the bottom, tie a weight to the reel and fasten the SMB to the free end, and chuck the lot overboard.

Tie a weight to the end of the line, fasten the buoy to the reel, throw the weight in and let the line run out until it goes slack, then lock the reel and chuck the buoy in.

Tie a weight to the reel and tie the lock off (free to rotate), attach the SMB in the normal way, then chuck the lot overboard.

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* 23. Which actions are appropriate if you have a pair of divers missing? Please select all that apply.

Post lookouts

Mark their last known position

Recall other divers

Ask other craft to help by searching up tide and out to sea from their last known position

Ask other craft to help by searching down tide from and inshore of their last known position

Alert the coastguard

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* 24. Which actions are appropriate in the event of a casualty with diving related injuries? Please select all that apply.

Remove casualty from danger

Perform casualty assessment

Administer oxygen

Monitor casualty

Monitor buddy

Alert the coastguard

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* 25. Which actions are appropriate in the event of a disabled boat? Please select all that apply.

Summon help from nearby craft

Accept any offer of a tow unconditionally

Accept an offer of a tow once you know whether the tower intends to claim salvage

Deploy an anchor or sea anchor to reduce drift if necessary

Alert the coastguard immediately

Alert the coastguard if you cannot get sufficient help from nearby craft

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* 26. Some diving groups use a diver-to-surface signalling system based on different colours and combinations of DSMBs to deal with underwater problems, principally running low on breathing gas for decompression. Which of the following are essential if such a system is to be effective? Please select all that apply.

All those involved must understand the signals to be used

All those involved in surface support must understand what actions they are to carry out in the event of an emergency signal

The necessary equipment such as spare cylinders of decompression gas, ropes, buoys, etc, must be fully rigged and ready for deployment whilst diving is taking place

The procedures should be well practiced before hand to ensure familiarity and competence to respond in an emergency

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* 27. What colours of DSMB are recommended where a diver-to-surface emergency signalling system is used?

Red=problem
Yellow=OK
Red+yellow=deco gas needed

Red=OK
Yellow=problem
Red+yellow=deco gas needed

Red=OK
Yellow=OK
Red+yellow=deco gas needed

Red=OK
Yellow=n/a (do not use yellow alone)
Red+yellow=deco gas needed

Red=n/a (do not use red alone)
Yellow=OK
Red+yellow=deco gas needed