19
3-10.
The oxygen breathing apparatus (OBA) is
a valuable adjunct in rescue operations for
what reason?
1.
It can be connected directly to an
external air source
2.
It provides positive pressure
ventilation for the wearer
3.
It neutralizes or filters toxic gasses
4.
It generates its own oxygen
3-11.
When, if ever, should an oxygen source be
connected to an air line mask?
1.
When entering a carbon dioxide filled
compartment or void
2.
When entering a compartment or void
with fuel oil vapors
3.
After the couplings have been cleaned
of all oil or grease
4.
Never
3-12.
The standard gas mask provides effective
protection against
1.
carbon monoxide and carbon dioxide
2.
low oxygen concentrations
3.
both 1 and 2 above
4.
chemical and biological warfare
agents
3-13.
When using a lifeline to raise an
unconscious person from a compartment,
the lifeline should be attached to the victim
in what manner?
1.
Around the waist and to the belt
2.
Around the chest and under the arms
3.
Around the hips and the wrists
4.
Around the arms and the legs
IN ANSWERING QUESTIONS 3-14 AND 3-15,
REFER TO THE FOLLOWING SCENARIO.
DETERMINE THE PHASE OF RESCUE
OPERATIONS, STAGE OF EXTRICATION,
AND/OR RESCUE PROCEDURE INDICATED
BY THE QUESTION.
3-14.
Several Sailors have just been reached.
Two are unconscious, badly burned, and
pinned under an empty wall locker. One is
dead.
1.
First and third phases/first stage
2.
Second phase/third stage
3.
Third phase/third stage
4.
First and last phases/first stage
3-15.
A Sailor is injured and trapped under a
fallen metal beam that is wedged tight by a
buckled bulkhead. After unsuccessful
efforts to move the beam, special cutting
and lifting equipment is called for.
1.
First phase
2.
Second phase
3.
Third phase
4.
Last phase
Scenario
There has been a fire and explosion
aboard ship and approximately 30
Sailors are trapped below deck. To get
to the trapped Sailors, bulkheads are
being breached and a large section of
the damaged deck is being cut away.
Firefighting teams are still fighting a
large out of control fire near where you
will be working. Passageway ventilation
systems are working to remove dense,
acrid smoke. Everyone is wearing OBA.
Several steam lines have been ruptured
and live electrical lines are sparking
throughout the area. The DCO has
determined that rescue attempts can be
conducted.