PSDiverMonthly Continuing Education - Issue 49
PSDiverMonthly
Continuing Education - Issue 48
1) Atmospheric pressure measured at surface at sea
level is:
a. 14.7 PSI
b. 15.7 PSI
c. 13.7 PSI
d. 12.6 PSI
2) For each foot of depth in Salt Water that a diver
ascends the pressure increases by?
a. .446 PSI
b. .443 PSI
c. .444 PSI
d. .445 PSI
3) It is more important to know the _________ of
a submerged object when lifting the object.
a. Cubic foot in displacement
b. Amount of air in the wheels if it is a vehicle
c. Air spaces
d. Dead Weight
4) Density of air increases with depth.
a. True
b. False
5) Always use air from a scuba tank to inflate lifting
devices.
a. True
b. False
6) Mixed gas is safer to use as a lifiting gas over
atmospheric air.
a. True
b. False
c. Neither
7) Recreational divers should leave the search and
recovery of valuable, large or crime related objects to trained professional divers.
a. True
b. False
8) During a search and recovery dive, water movement
a. Hinderes the search
b. Helps the search
c. May hinder or help, depending upon the situation
9) Potential hazards in s&r diving include:
a. Falling recovered objects
b. Sharp objects
c. Boat traffic
d. Equipment loss
e. A&B
f. A&C
g. A, C, D
h. A, B, C
10) Which of the five steps of planning a S&R dive involves determining the
objects size and weight?
a. Defining the object
b. Collecting and analyzing information
c. Selecting a buddy
d. Briefing
11) A lift bag is mandatory for recovering objects heaver than
a. 5 pounds
b. 10 pounds
c. 20 pounds
d. 40 pounds
12) Air from a lift bag can be use as breatahing air in aan emergency
a. True
b. false
Essay:
Describe why non-flexible devices such as plastic or metal 35/55 gallon drums are not suitable for lifting devices.
Essay:
Describe why it will take more or less air to fill a lift bag above 10000 feet as compared to sea level.
answers
|
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
|
A |
D |
D |
A |
B |
C |
A |
C |
H |
B |
B |
B |
