OCEAN DIVER KNOWLEDGE REVIEW OT7 - ENJOYING YOUR DIVING

Which of the following benefits is true of shore diving rather than boat diving? See Student Workbook pp81-84
1. Access to remote coastal sites
2. Access to offshore reefs and wrecks
3. Usually no requirement for launch facilities
4. Increased safety
5. Increased scope for adventure
When diving from a RIB, it is usual to suit up _____. See Student Workbook p83
1. On land, before leaving the shore
2. During the trip to the site
3. On arrival at the site
4. Sitting in the boat before leaving the shore
5. In two waves, at the site.
When diving from a RIB, you may need to take your basic equipment and accessories in a ______ See Student Workbook p82
1. Large plastic crate
2. Normal diving bag
3. Stackable plastic storage trunk
4. Small dive bag
5. Carrier bag
Which of the following are commonly encountered in freshwater quarries and lakes? Tick all that apply See Student Workbook pp78-79
1. silty bottom
2. large waves
3. cold even in summer
4. deep water close to shore
5. strong currents
6. ground swel
7. poor visibility after rain
Waves increase in height _____. See Student Workbook pp79-80
1. When they move into deeper water
2. When they move into shallow water
3. When the wind decreases in strength
4. After they have broken
5. In fine weather
When diving from a boat, rough seas can make it difficult to _____. See Student Workbook p80
1. Enter via a giant stride
2. Enter via a forward roll
3. Exit via the ladder
4. Enter via a backward roll
5. Dive singly, rest acting as surface cover
A plankton bloom is likely to make the underwater visibility ______. See Student Workbook p81
1. unchanged
2. worse
3. better
4. zero
8. When diving in a current, the easiest way to cope is to _____. See Student Workbook p80
1. Fin against it
2. Fin across it
3. Go with it
4. Abandon the dive
5. Hold on to a suitable rock.
When shore diving in the sea, which of the following could make it difficult or impossible to exit at the point where you entered? See Student Workbook pp81-82
1. Current
2. Rise and fall of the tide
3. Waves
4. Undertow
5. All of the above
Which of the following are recommended for Marine Conservation. See Student Workbook p86
1. Hold onto the reef to simplify buoyancy control
2. Take shellfish if you get the chance – you can’t eat photographs and memories!
3. Look but don’t touch
4. Don’t worry about kicking up sediment, it will soon be washed away
5. All of the above
To avoid seasickness, you should _____. See Student Workbook p80
1. Stay downwind of the diesel exhaust
2. Be near the centre of the boat looking at the horizon
3. Eat a hearty fried breakfast before sailing
4. Stay in the toilet until it is time to kit up
5. Stay below decks until it is time to kit up
Why would a diver choose to dive at night? See Student Workbook pp87-88
1. Can see sea creatures venturing out to feed
2. Can focus on a particular area in detail
3. Use of a torch brings colour to play
4. All of the above
What are the potential risks in night diving (that don’t apply to diving in general)? See Student Workbook p88
1. Nitrogen narcosis
2. Cold
3. Shark attack
4. Separation and disorientation
5. Torch failure
What is the general rule for snorkel buddy diving? See Student Workbook p89
1. One out, all out
2. One up, one down
3. All for one, and one for all
4. Two’s company, three’s a crowd
5. One for the road
What should you beware of when diving on holiday? See Student Workbook pp89-90
1. Dehydration in hot climates – drink plenty of water
2. Diving signals may be different
3. Going too deep or staying down too long in warm clear water
4. Sunburn while snorkelling
5. All of the above
If you find/salvage an article from a shipwreck you must _____. See Student Workbook p87
1. Give it to your D.O.
2. Keep it for yourself
3. Give it to the Branch
4. Give it to the local museum
5. Report it to the Receiver of Wreck
Caution! Corroding metal plates on wrecks may be _____. See Student Workbook p86
1. liable to collapse
2. as sharp as a knife
3. valuable
4. worth lifting
5. toxic
It is recommended that Ocean Divers do not _____. See Student Workbook p86
1. Enter inside a wreck
2. Wreck dive
3. Night Dive
4. Drift dive
5. Survey wrecks

OCEAN DIVER KNOWLEDGE REVIEW OT7 - ENJOYING YOUR DIVING

Multiple-choice exercise

OCEAN DIVER KNOWLEDGE REVIEW
OT7 - ENJOYING YOUR DIVING