Chapter 6 - Specialized Skills and Activities Flashcards
You and your buddy are planning to map a dive site that is 100 metres/330 feet by 100 metres/330 feet. You need a useable map that has reasonable accuracy, but the map will be used for dive briefings, not archaeology or anything scientific. What measurement method(s) would be appropriate?
a. arm spans
b. timed swim
c. measured tape or line
d. kick cycles
b. timed swim
d. kick cycles
Which of the following patterns would generally be the preferred pattern for mapping?
a. circular pattern
b. U-pattern
c. semicircular pattern
d. random path pattern
b. U-pattern
You have to anchor a float that will be used by Open Water Diver students on their first dive. You find a very small sand patch right next to a beautiful coral stand. Which statement mostly likely represents what you would do:
a. You would anchor the float in the coral.
b. You would anchor the float in the sand patch.
c. You would look for a better place to anchor the float.
d. You would tie the float to the coral.
c. You would look for a better place to anchor the float.
Identify the statement that is not true regarding towing a float or DSMB.
a. Keep tension on the line to reduce the risk of entanglement.
b. Clip the line to your gear to keep your hands free.
c. Be cautious that the line does not harm aquatic life.
d. Pull down on the line to make a DSMB stand in the water.
b. Clip the line to your gear to keep your hands free.
The goal with any search pattern is to cover the search are as quickly as possible without leaving _______________.
gaps
Identify the characteristics of an expanding square search pattern.
a. well suited to looking for something lost is the immediate area
b. best choice for finding a small object in a large area
c. requires no special equipment
d. difficult to apply over obstructed bottom
e. use to search a large area for a medium to large object
f. requires a line and reel
a. well suited to looking for something lost is the immediate area
c. requires no special equipment
Identify the characteristics of a circular or semicircular search pattern.
a. well suited to looking for something lost is the immediate area
b. best choice for finding a small object in a large area
c. requires no special equipment
d. difficult to apply over obstructed bottom
e. use to search a large area for a medium to large object
f. requires a line and reel
d. difficult to apply over obstructed bottom
f. requires a line and reel
Identify the characteristics of a U-pattern search pattern.
a. well suited to looking for something lost is the immediate area
b. best choice for finding a small object in a large area
c. requires no special equipment
d. difficult to apply over obstructed bottom
e. use to search a large area for a medium to large object
f. requires a line and reel
e. use to search a large area for a medium to large object
Identify the characteristics of a jackstay search pattern.
a. well suited to looking for something lost is the immediate area
b. best choice for finding a small object in a large area
c. requires no special equipment
d. difficult to apply over obstructed bottom
e. use to search a large area for a medium to large object
f. requires a line and reel
b. best choice for finding a small object in a large area
Not in the answers but kind of: f. requires a line and reel
You’re ascending with a lift bag and it starts to runaway from you. You should ___________.
let go
A team of recreational divers wants you to supervise a dive to 24 metres/80 feet to map a wreck’s wheelhouse, photograph the telegraph, locate a moray eel known to live there and photograph the eel. Which of the following would probably be the most appropriate response?
a. Agree, but tell the divers to leave the eel alone.
b. Agree, but tell the divers they need to pick one or at most two, of those objectives.
c. Decline, no explanation.
d. Decline, but explain that when they’re all tec divers, you’ll reconsider.
b. Agree, but tell the divers they need to pick one or at most two, of those objectives.
When feasible, when deep diving it is good to practice to have spare weights and a spare cylinder with regulator handing at 5 metres/15 feet.
_True
_False
True
If divers appear uncomfortable while leading a deep dive underwater, at many dive sites an appropriate action is to
a. share air for easier breathing
b. take them deeper so they enjoy the experience more.
c. ascend rapidly.
d. lead the group to a shallower level and continue the dive.
d. lead the group to a shallower level and continue the dive.
One reason for altitude diving procedures is that most decompression models were developed for us at _________.
sea level
It is common for groups of inexperienced drift divers to ascend as a group, whereas experienced drift divers commonly ascend as individual buddy teams.
_True
_False
True
