The oxygen breathing apparatus (OBA) is
a valuable adjunct in rescue operations for
It can be connected directly to an
external air source
It provides positive pressure
ventilation for the wearer
It neutralizes or filters toxic gasses
It generates its own oxygen
When, if ever, should an oxygen source be
connected to an air line mask?
When entering a carbon dioxide filled
compartment or void
When entering a compartment or void
with fuel oil vapors
After the couplings have been cleaned
of all oil or grease
The standard gas mask provides effective
carbon monoxide and carbon dioxide
low oxygen concentrations
both 1 and 2 above
chemical and biological warfare
When using a lifeline to raise an
unconscious person from a compartment,
the lifeline should be attached to the victim
in what manner?
Around the waist and to the belt
Around the chest and under the arms
Around the hips and the wrists
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.
Several Sailors have just been reached.
Two are unconscious, badly burned, and
pinned under an empty wall locker. One is
First and third phases/first stage
Second phase/third stage
Third phase/third stage
First and last phases/first stage
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.
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