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PRACTICE EXAM FIREFIGHTER/150 QUESTIONS WITH ANSWERS
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PRACTICE EXAM FIREFIGHTER/150QUESTIONS WITH ANSWERS
Which of the following was not suggested for personnel protection with
regard to dealing with the chemical in question?
A. Keep upwind of the chemical.
B. Wear self-contained breathing apparatus.
C. Avoid bodily contact with the chemical.
D. Any chemical that may inadvertently contact the body should be washed
off with large amounts of alcohol. - -D. Any chemical that may inadvertently
contact the body should be washed off with large amounts of alcohol.
-If a container of ethylene oxide has been subjected to fire for a prolonged
period of time, what is the recommended distance for safe evacuation? - -
5,000 feet
-What dilution of ethylene oxide with water is required to effectively inhibit
its flammability? - -24: 1
-Once ethylene oxide becomes contaminated, what kind of chemical process
may occur that can generate enough heat and pressure to rupture its
containment? - -Polymerization
-13. Which of the following choices is not recognized as a symptom
stemming from ethylene oxide vapor exposure?
A. Eye irritation
B. Skin irritation or burns
C. Irritation of the respiratory system
D. Loss of muscular function - -C. Irritation of the respiratory system
-- -
-16. Firefighters often apply a hose stream to the side of a building that is in
close proximity to a fire. What is the primary reason for conducting such an
operation? - -Radiant heat given off by the neighboring fire may adversely
affect the nearest wall. Without the coolant effect of the hose stream,
enough heat may be absorbed by an exposed surface to cause ignition and
create a separate blaze.
, -17. Frequently, people use an octopus wall outlet connection to maximize
the number of appliances that can be plugged into a single outlet. What
would this be considered? - -Unsafe, because the excessive amount of
current drawn through the outlet may exceed what it is designed to handle.
This may set the stage for wires to overheat or a short circuit to occur, thus
causing a fire within the partition.
-18. What is the greatest danger aspect for someone using an aluminum
ladder to install or realign a rooftop antenna? - -A potential electrical shock
hazard is possible when in the vicinity of power lines.
**Any kind of metal ladder poses an electrical hazard if it comes into contact
with an energized power line. Aluminum is a superb conductor. Choices A
and B are incorrect. Choice D refers to a problem associated with aluminum
ladders. However, it is not considered a greater danger than the prospect of
electrocution.**
-19. In the process of fighting a fire, your superior officer directs you to
perform a different part of the operation. If, because of the noise and
commotion you do not fully hear or comprehend what was said, what should
you do? - -Ask your commanding officer to repeat the instruction.
**Problems that occur at the fire scene that hamper the efficiency of how a
fire is handled are normally attributed to poor communication among
firefighters. If a direction is not fully comprehended or clearly heard, it is
better to have it repeated than to undertake action on your own initiative.
Effective teamwork is imperative for any kind of operation to be conducted
efficiently. The other choices run counter to this concept.**
-21. If someone's clothing were to catch on fire, what would be an
appropriate thing to do? - -If it is a loose fitting garment, such as a jacket or
coat, you should attempt to strip it off.
Wrap a blanket or something similar around the victim to smother the
flames.
Get the victim to drop to the ground and roll slowly.
-22. Icy road conditions can be particularly hazardous for driving because - -
Friction between the tires and road is minimized.
**Brakes, contrary to popular thought, are not directly responsible for
stopping a vehicle. Instead, they retard the motion of the wheels.
Consequently, friction develops between the tire and the road which is
directly responsible for a vehicle coming to a complete stop.**
, -23. According to the National Safety Council, each year twenty times more
deaths within the United States are caused by fires than by tornadoes,
floods, earthquakes, and hurricanes combined. What can we deduce from
this statement?
A. Fires are more lethal by comparison.
B. Tornadoes, floods, earthquakes, and hurricanes are taken for granted by
most people.
C. People are better able to cope with natural weather phenomena than fire.
D. Statistically there are many more fires than natural weather or
geophysical disasters. This, combined with public apathy and a lack of
education about fire, is the probable reason for the high fatality rate. - -D.
Statistically there are many more fires than natural weather or geophysical
disasters. This, combined with public apathy and a lack of education about
fire, is the probable reason for the high fatality rate.
**When the destructive capabilities of fire are compared to those of
tornadoes, hurricanes, earthquakes, and floods, it is a misconception to think
that fire is the worst. In fact, the destructive energy of the other
phenomenon discussed is significantly greater. Additionally, fire prevention
and education are taken for granted by most people, thus leading to
preventable accidents and consequent fatalities.**
-24. When mechanical ventilation is required to help purge heat and smoke
from a burning building, which of the following should be avoided? - -Placing
the exhaust fan, if possible, in the same direction that the prevailing winds
are coming from.
**The vented exhaust is being directed against a prevailing wind. This is
neither efficient nor desired because the vented gases could be
inadvertently recirculated into the building. The best idea is to use wind to
your advantage, not have it work against you.**
-27. In your judgment, what is the best reason for fire hoses to be removed
and reloaded on an apparatus at least once every 30 days?
A. Hose tends to get brittle with little use.
B. Water trapped within a hose after use can stagnate and deteriorate the
lining.
C. It reduces the possibility of bends becoming permanently set at certain
points in the hoseline.
, D. It is just another menial job to keep firefighters constantly busy. - -C. It
reduces the possibility of bends becoming permanently set at certain points
in the hoseline.
**It is a fact that hose lines left unused for long periods of time deteriorate
more quickly than hoses that are frequently used. Unloading hose at least
once a month eliminates the problem of bends becoming permanently set in
the lining. Once bends happen, hoses can become weak at the bend points
and are more prone to leakage or rupture.**
-26. What is the most important attribute a good driver has over someone
with marginal driving ability? - -A good attitude.
-28. Firefighters are responsible for preventing any unnecessary damage
from occurring to hoselines at the scene of a fire. Not only are they
expensive to replace, but damaged hoses can become ineffective in fighting
a fire if they cannot remain charged because of leaks or ruptures. Which of
the following hose-care practices is not recommended?
A. Avoid excessive dragging.
B. Don't allow vehicles to run over charged hoses.
C. Avoid laying hose over sharp or rough corners.
D. Use hot air to quickly dry the outside woven jacket of the hose. - -D. Use
hot air to quickly dry the outside woven jacket of the hose.
**Most hoses are composed of rubber, natural or synthetic. When rubber is
subjected to hot air, it quickly deteriorates or cracks. Moderately warm air
should be used to dry hoseline.**
-27. In your judgment, what is the best reason for fire hoses to be removed
and reloaded on an apparatus at least once every 30 days? - -It reduces the
possibility of bends becoming permanently set at certain points in the
hoseline.
**It is a fact that hose lines left unused for long periods of time deteriorate
more quickly than hoses that are frequently used. Unloading hose at least
once a month eliminates the problem of bends becoming permanently set in
the lining. Once bends happen, hoses can become weak at the bend points
and are more prone to leakage or rupture.**
-30. Without considering braided nylon, which of the 1 ½" diameter ropes
shown in the chart would support the greatest load?
A. Braided nylon
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