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PRACTICE EXAM FIREFIGHTER 150 Questions with Verified
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. - CORRECT ANSWER 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? - CORRECT ANSWER 5,000 feet What dilution of ethylene oxide with water is required to effectively inhibit its flammability? - CORRECT ANSWER 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? - CORRECT ANSWER Polymerization
- 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 - CORRECT ANSWER C. Irritation of the respiratory system
- 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?
- CORRECT ANSWER 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.
- 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? - CORRECT ANSWER 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.
- What is the greatest danger aspect for someone using an aluminum ladder to install or realign a rooftop antenna? - CORRECT ANSWER 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.
- 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? - CORRECT ANSWER 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.**
- If someone's clothing were to catch on fire, what would be an appropriate thing to do? - CORRECT ANSWER 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.
- Icy road conditions can be particularly hazardous for driving because - CORRECT ANSWER 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.
- 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. - CORRECT ANSWER 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.
- When mechanical ventilation is required to help purge heat and smoke from a burning building, which of the following should be avoided? - CORRECT ANSWER 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.
- 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. - CORRECT ANSWER 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.
- What is the most important attribute a good driver has over someone with marginal driving ability? - CORRECT ANSWER A good attitude.
- 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. - CORRECT ANSWER 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.
- 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? - CORRECT ANSWER 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.
- Without considering braided nylon, which of the 1 ½" diameter ropes shown in the chart would support the greatest load? A. Braided nylon B. Nylon
C. Polypropylene D. Manila - CORRECT ANSWER B. Nylon Braided nylon would, of course, be the strongest rope shown; however, as it is worded, the question eliminates this as a possibility. Even unbraided 1 ½ inch diameter nylon can support 5,610 pounds. Polypropylene is the second strongest choice given and manila would be considered the weakest.
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- What is the total resistance (in OHMS) of four resistors, in a series, that are rated OHMS? A. OHMS B. 2 OHMS C. 3 OHMS D. OHMS - CORRECT ANSWER B. 2 OHMS
- The formula for converting Celsius temperatures to Fahrenheit is ° F = 9/ 5 (° C ) + 32. What is 25 ° Celsius in Fahrenheit? A. 102.6 ° B. 77 ° C. 67.3 ° D. 59.4 ° - CORRECT ANSWER B. F ° = (9/ 5)( 25 °) + 32 = 77 °. PEMDAS
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- If someone had an 850-liter underground diesel-fuel tank filled six times during the year, how many kiloliters of fuel were consumed annually? A. 5.1 kiloliters B. 51 kiloliters C. 510 kiloliters D. 5,100 kiloliters - CORRECT ANSWER
- How can 1 yards to 16 inches be best expressed in terms of a ratio? A. 1.33: 16 B. 1.33: 1. C. 3: 1 D. 1: 3 - CORRECT ANSWER C. 3: 1 Since we are dealing with two different units of measure (i.e., yards and inches), it is necessary to convert one to the other. This can be done one of two ways. We know there are 36 inches in a yard, so 16 inches is equal to yard or, in reduced form, yards. Or we can change yards into inches; we simply multiply
- The number 49 is 42% of what number? A. 20. B. 79. C. 116. D. 136.1 - CORRECT ANSWER C. 116.
set up proportion 49/X = 42/
- If pulley A has a circumference of 14.75 inches and pulley B has a circumference of 23.25 inches, how fast would pulley A turn if pulley B were turning at 200 rpm? A. 315.25 rpm B. 274.67 rpm C. 192.83 rpm D. 126.88 rpm . - CORRECT ANSWER A. 315.25 rpm **This is a problem that necessitates an inverse proportion. If we try to solve this with a direct proportion, we would set it up in the following manner: 23.25 / 14.75 = Xrpm / 200rpm **
- The loss of water pressure in a hose can be attributed to friction. If it is known that the friction loss in 100 feet of 1 ½ inch hose is 25 pounds per square inch, what would be the friction loss for 150 feet of 1 ½ inch hose, assuming all other factors remain constant? A. 16.67 psi B. 37.5 psi C. 47.3 psi D. 52 psi - CORRECT ANSWER B. 37.5 psi 100/ 150 = 25/x
- If a 6-foot-tall firefighter cast a shadow 7.5 feet long and simultaneously noticed that the fire station cast a shadow 35 feet long, how tall is the fire station? A. 27.5 feet B. 28 feet C. 29.7 feet D. 32 feet - CORRECT ANSWER B. 28 feet 6/x = 7.5/
- What would be the displacement of a piston that has a bore of 3.25 inches and a stroke of 4.75 inches? A. 39.41 cubic inches B. 47.59 cubic inches C. 132.52 cubic inches D. 157.62 cubic inches - CORRECT ANSWER A. 39.41 cubic inches What is essentially being described in this question is the volume of a cylinder. The bore represents the diameter of the cylinder and the stroke represents the height of the cylinder. Since volume of a cylinder = pi x R^2 x Height, we can easily figure the displacement. The radius is equal to Diameter x .5 or, in this case, 3.25 x .5 = 1.625. (Note that 1.6252 = 2.641.) Therefore, (3.1416) x (2.641) x (4. inches) = X cubic inches of displacement. X = 39.41 cubic inches.
- Someone was told to cut a 23.5-inch-diameter circle from a square piece of sheet metal that measures 24 inches on one side. Approximately how many square inches of sheet metal would be left after the circular cut was made? A. 142.26 square inches B. 147 square inches
C. 159.87 square inches D. 163.2 square inches - CORRECT ANSWER A. 142.26 square inches The area of a square is equal to its side squared. The area of a circle is equal to pi x R^2 Therefore, the area of the square minus the area of the circular portion removed will give us how many square inches of sheet metal would be left over. .
- If a firefighter applicant scored 80%, 82%, 90%, and 87% on his first four exams, what kind of grade would be required on the fifth exam to acquire an overall average of 87%? A. 87% B. 89% C. 96% D. 98% - CORRECT ANSWER C. 96% When determining the average of test scores for an applicant, it is necessary to add all test scores together and divide by the number of tests taken. Therefore, if we know what the four previous test scores were, and the desired overall average, we can solve the percent required in the last exam. 3.39+ x%/ 5 =.
- If six firemen can conduct waterflow analysis on 25 fire hydrants in two days, how many fire hydrants could be inspected by five firemen in four days? A. 22 B. 27 C. 35
D. 42 - CORRECT ANSWER D. 42
** 6/5 x 2/4 =25/x **
- Two fire inspection officers that lived in cities 469 miles apart started traveling toward one another on the same route at rates of 57 mph and 68 mph. If both drivers departed at 6: 15 a.m., what time would they pass each other? A. 9: 15 a.m. B. 10: 00 a.m. C. 10: 20 a.m. D. 1: 15 p.m. - CORRECT ANSWER B. 10: 00 a.m. 57x+68x=469
- On Friday night, Greg drove home from fire academy training at an average rate of 58 mph. On the return trip Sunday night, his rate was 5 mph slower, which took him an additional 30 minutes of travel time. How long of a commute is it between Greg's home and the academy? A. 261 miles B. 292.5 miles C. 301.7 miles D. 307.4 miles - CORRECT ANSWER D. 307.4 miles 58x = 53(X+.5)
- Assume the fire department pays 75% of your medical insurance and another $ 150 per month for dental insurance. If your combined insurance benefits total $ 600 per month, what does the fire department actually pay for your monthly medical insurance premiums? A. $ 550
B. $ 575
C. $ 600
D. $ 625 - CORRECT ANSWER C. $ 600
3/4X+150=600
- How many ounces of water should be added to 24 ounces of an alcohol/ water solution containing 44% alcohol to dilute the mixture to 20% alcohol? A. 33.1 ounces B. 31 ounces C. 28.8 ounces D. 24 ounces - CORRECT ANSWER C. 28.8 ounces 10.56=.20(x+24)
- An industrial alarm control panel is in a rectangular container that has a square base and a measured volume of 16 cubic feet. The height of this container is 16 inches. What would be the length of the base? A. 3.464 feet B. 4.125 feet C. 4.65 feet D. 5.14 feet - CORRECT ANSWER A. 3.464 feet *X x X x 1 1/3= 16
- A drill press operator noticed the metallic waste on the floor was smoking and on the verge of igniting. What kind of fire extinguisher would be best suited for this situation? A. Class A
B. Class B C. Class C D. Class D - CORRECT ANSWER B. Class B or D. Class D Choice B was correct, you are right if your line of thinking was with regard to the oil lubricant used by drillpress operators when drilling metal stock. If it was the lubricant that caught fire and the metal stock itself was inert, Choice B could be considered possible. On the other hand, if the metal waste on the floor was the reducing agent (i.e., fuel) involved, then a Class D fire extinguisher would best be used.
- If sawdust that had accumulated on the underside of a table saw caught fire in a woodshop, what kind of fire extinguisher should be used to suppress it? A. Class A B. Class A, B C. Class A, B, C D. Class D - CORRECT ANSWER C. Class A, B, C Of prime concern here is the fact that the table saw is an electrical appliance. Unless it is de-energized, the potential for receiving a shock exists. Therefore, an extinguishing agent that has nonconductive properties, such as potassium bicarbonate, would be recommended.
- Sodium bicarbonate is an example of what kind of extinguishing agent? - CORRECT ANSWER Nonconductive dry chemical **Sodium bicarbonate is basically a nonconductive dry chemical for use on electrical fires. Choices A and B are different from sodium bicarbonate because they are wetting agents capable of electrical conductivity. Liquified compressed
gas such as Halon 1211 can be used on electrical fires as well, but is not considered to be a dry chemical.**
- If a 2 ½-gallon fire extinguisher contained water stored under pressure, but lacked a face plate identifying its classification, what class or classes of fires could we assume this unit would be effective in suppressing? - CORRECT ANSWER Class A Class A fires. Even though the relationships of extinguishing agent and suppression effectiveness was not discussed, we can solve this question by eliminating choices. Choices B and C are wrong because the letter C indicates the capacity to be used on electrical fires. Obviously, water used to suppress a fire of this nature poses an extreme hazard of electrical shock because water is conductive. Choice D is wrong because it was mentioned in the passage that Class D fires require special extinguishing agents. Thus, through a process of elimination, Choice A is the correct answer.
- If another aboveground storage tank contains a radioactive material that poses an extreme hazard to those who do not wear protective gear, which of the choices below would best identify the substance in question according to the 704 labeling system? A. The blue quadrant must demonstrate a signal of 3 or 4 coupled with the radioactivity insignia in the bottom quadrant of the placard. B. The blue quadrant must demonstrate a signal of 1 or 2 in conjunction with the yellow quadrant bearing the insignia for radioactivity. C. The red quadrant must show a high number to indicate an extreme reactivity due to the presence of radiation. D. All quadrants should be marked with a high signal due to the radioactivity involved. - CORRECT ANSWER A. The blue quadrant must demonstrate a signal of 3 or 4 coupled with the radioactivity insignia in the bottom quadrant of the placard. *Only Choice A comes closest to what is described as being stored in the tank. Even though there was not much elaboration on the number system, we were
told that the higher the signal (i.e., number), the more hazardous the material identified. On that premise alone.*
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- The temperature required to convert a fuel from a liquid state to a gaseous state is considered to be what? - CORRECT ANSWER The flashpoint of a fuel The flashpoint of a fuel is the temperature required of a liquid to convert to a gaseous state or, in other words, vaporize. Pyrolysis concerns the conversion of solids to a gaseous state.
- Another term for a liquid substance that demonstrates a low flashpoint is - CORRECT ANSWER Volatile Any liquid that has a low flashpoint is considered to be volatile. Butyl alcohol is, in fact, one such substance. However, we are concerned with finding another term rather than an example. Choice B is wrong because it was stated in the article that liquids are not compressible.
- How is liquid similar to a gas? - CORRECT ANSWER Both assume the shape of their container. A liquid and a gas both have the characteristic of assuming the shape of their containment.
- Which of the substances shown in the chart below poses the greatest risk of accidental combustion while being handled? SUBSTANCE FLASHPOINT Gasoline - 36 ° F Aviation fuel -50 ° F Kerosene 100 ° F Mineral oil 380 ° F - CORRECT ANSWER Aviation fuel
According to what is given in the question, aviation fuel has the lowest flashpoint. In fact, both aviation fuel and ordinary gasoline can exist in a gaseous state at room temperature. If vapors from these fuels flow across an ignition source, the result can be an explosion. Kerosene and mineral oil are much more stable due to their higher flashpoints.
- If a firefighter needed to gain entry to a premises where the doors were chained and padlocked, what tool illustrated below is most appropriate to be used to cut the chain link or the lock's shackle? - CORRECT ANSWER Bolt Cutters Bolt cutters would be the most appropriate tool used to cut chain link. Straight snips are better used to cut thin sheet metal instead of thick round metal stock. A hacksaw could cut either the lock or the chain; however, it would be significantly slower and more inconvenient to use than bolt cutters.
- Which of the following wrenches is not considered to be adjustable? A. Crescent wrench B. Box wrench C. Monkey wrench D. Stilson wrench - CORRECT ANSWER B. Box Wrench The box wrench is the only alternative listed that lacks adjustability.
- If an electrician needed to flare the end of a piece of electrical conduit to create a coupling with another piece of electrical conduit, what kind of tool would be used? A. A brace with an auger bit B. A brace with a ream C. A power drill with a spade bit D. A power drill with a countersink bit - CORRECT ANSWER B. A brace with a ream
This is the principle use for a ream.
- If a length of wood had to be cut perpendicular to its grain, what kind of saw blade would be recommended? A. Rip cut blade B. Saber saw blade C. Crosscut blade D. Friction blade - CORRECT ANSWER C. Crosscut blade Since the intended use of this saw blade is to cut across the grain of a piece of wood, a crosscut blade would be the better choice.
- Which of the gears listed below demonstrates the unique capability of changing drivetrain direction? A. Helical gears B. Beveled gears C. Herringbone gears D. Spur gears - CORRECT ANSWER B. Beveled Gears Rather than set perpendicularly to a gear's facing. This angulation allows for the directional change of a drivetrain.
- What is the principle reason firefighters open and close all valves and nozzles slowly? - CORRECT ANSWER Any time the flow of water is suddenly stopped, the resulting directional change of the water creates a force to be reckoned with. This force, when trapped within a confined system, can lead to serious damage to fire pumps, hoselines, and water mains, consequently endangering firefighters. In firefighting terms, this kind of problem is referred to as water hammer. It can be avoided if all valves and nozzles are opened slowly.
- Frequently, firefighters must break windows to gain entry into a building. Keeping safety in mind, which of the following procedures would not be recommended? A. Stand to the leeward side of the window being broken. B. Keep your hands above the point of impact. C. Never use your hands to break glass. D. Initially break the topmost portion of a window, and then work your way to the bottom of the pane. - CORRECT ANSWER
- If a firefighter en route to an emergency became involved in a traffic accident, which of the options given below would be the next appropriate step to take? A. Stop immediately. B. Assess the amount of damage done. If it seems insignificant, it would simply be a waste of time to report it. C. Notify his or her superior after the police have conducted a thorough investigation. D. Bring the vehicle to a halt only when it is safe to do so. - CORRECT ANSWER
- When artificial respiration is required, the victim's head is tilted back by lifting gently the back of the neck and pushing the forehead down. What is the principle reason for doing this? - CORRECT ANSWER
- The protective barrier between a car's engine and the passenger compartment is referred to as a firewall. Judging by its location, this barrier principally serves what function? - CORRECT ANSWER
- Gasoline engines become more efficient when they operate at sea level versus higher elevations. What is the most probable reason for this? - CORRECT ANSWER
- On occasion, fire departments receive emergency calls regarding people that have fallen through the ice on frozen lakes or ponds. Throwing a rope or line to
the victim is sometimes ineffective because the victim panics or because hypothermia precludes any possibility of a safe rescue. When firefighters lay a wooden ladder on the ice and use it as a crawlway to extend direct reach to the victim, what would this be considered? A. Safe; even if the ice were to break, the ladder would float. B. Unsafe. It would be quicker to just walk to the edge of the ice and pull the victim out of the water. C. The safest alternative considering the circumstances. The ladder serves to displace weight over a wider area and thus makes it less likely that the ice will break further. D. Unsafe. The added weight of the ladder may cause the ice to break further, thus complicating effective rescue. - CORRECT ANSWER
- Which of the firefighting practices below give the greatest benefit in reducing the need for extra manpower when salvage operations are undertaken? A. Open all doors and windows to provide extensive ventilation. B. Use a hose stream judiciously when suppressing a fire. C. Remove as much furniture or merchandise within the building as quickly as possible. D. Cover everything possible with polyethylene sheeting to reduce further damage from smoke. - CORRECT ANSWER
- Which kind of fire is probably the worst for firefighters to cope with? - CORRECT ANSWER
- What is the reason that air should be bled from a hose immediately before advancing into a burning structure? - CORRECT ANSWER
- Electing to use a fog or fine spray instead of a solid stream does not provide which of the following advantages? A. This method uses less water.
B. It covers a greater area. C. It absorbs more heat. D. It requires low discharge pressure. - CORRECT ANSWER
- Upon arriving at a warehouse suspected of having a gas leak of unknown origin inside, two things were immediately apparent to the fire crew. Both metal doors to the front and back were locked and there were no windows on the ground floor. Under the circumstances, what is the best possible means to conduct a forcible entry? A. Use an oxyacetylene cutting torch on the front door. B. Utilize a pry bar or some similar tool to wedge open the door at the jamb. C. Use a fireman's axe to create a hole in the door large enough to accommodate a hand and unlock the door from the inside. D. Utilize a gasoline powered circular saw with a metal cutting blade. - CORRECT ANSWER
- If a driveshaft made 40 revolutions every 2 ½ minutes, what would be the shafts rpm (revolutions per minute)? - CORRECT ANSWER
- If a booster line (i.e., rubber covered, rubber lined hose) had an internal diameter of inch and the thickness of the hose wall is of an inch, what is the booster line's outside diameter? - CORRECT ANSWER How many centimeters are there in 2.67 meters? - CORRECT ANSWER
- What is the diameter of a fire extinguisher that has a circumference of 19 inches? A. 8.62 inches B. 7.8 inches
C. 6.127 inches D. 5.911 inches - CORRECT ANSWER How high would a 25-foot ladder reach if it is placed 6 feet from the base of a building? A. 25 feet B. 24.27 feet C. 23.12 feet D. 22 feet - CORRECT ANSWER
- How many square feet of tarp would be needed to cover a circular area that has a radius of 7.35 feet? A. 46.18 feet B. 153.1 square feet C. 169.72 square feet D. 173 square feet - CORRECT ANSWER
- If someone had an attic that measured 48 feet in length and 22.5 feet in width and was 12 feet high, how many cubic feet of space could be utilized for storage? A. 7,905.2 cubic feet B. 6,480 cubic feet C. 967 cubic feet D. 135 square feet - CORRECT ANSWER
- A solution contains 35% benzene and 65% water. If 14 liters of this solution is diluted by adding 4.5 liters of water, what percentage of benzene would be present in the new mixture?
A. 23.7%
B. 26.49%
C. 31.7%
D. 43.55% - CORRECT ANSWER
- Which instrument could best determine if the interior diameters of two pipes is identical? - CORRECT ANSWER
- Which of the tools below lacks the ability to miter square? A. Try square B. Combination square C. Carpenter's framing square D. Both A and C - CORRECT ANSWER
- Which of the wrenches below is more convenient and can save time when it is necessary to loosen or tighten a bolt in tight quarters? A. Crescent wrench B. Stilson wrench C. Offset wrench D. Socket wrench - CORRECT ANSWER
- What kind of wrench demonstrates an L-shaped hexagonal design that is used to tighten or loosen machined setscrews? A. Allen wrench B. Torque wrench C. Stilson wrench
D. Offset wrench - CORRECT ANSWER
- What kind of file would be better suited to sharpen the dull edges of a saw blade and achieve proper angle set? A. Flat file B. Round file C. Triangular file D. Bench grinder - CORRECT ANSWER
- Considering how closely buildings were spaced together, the kind of materials used in their construction, and the inadequacy of firefighting equipment in the late 1800s and early 1900s, it is not hard to understand why "conflagrations" were not that uncommon. "Conflagrations" most nearly means A. Firefighter strikes B. Out-of-control fires C. Fire-related medical disabilities D. Firefighter fatalities - CORRECT ANSWER
- If firefighter recruits have any degree of "acrophobia," their ability to perform their duties at a fire can suffer and put co-workers at risk. "Acrophobia" most nearly means A. Stagefright B. Fear of heights C. Paranoia D. Uncertainty - CORRECT ANSWER
- Some of the questions on the lieutenant's exam made Carl feel a shade of "ineptitude." "Ineptitude" most nearly means A. Confidence
B. Hostility C. Competence D. Lack of aptitude - CORRECT ANSWER
- The structure was quite "dilapidated" and consequently it presented a host of fire hazards to the occupants. "Dilapidated" most nearly means A. New B. Deteriorated C. Cheap D. Worthless - CORRECT ANSWER
- If a metal workpiece is said to be "malleable," it most nearly means it is A. Brittle B. Hard C. Capable of D. Warped being shaped - CORRECT ANSWER
- By observing how extensive the fire was upon arrival, Lieutenant Mike Halsey deemed it too "precarious" to attempt rooftop ventilation. "Precarious" most nearly means A. Easy B. Risky C. Difficult D. Hot - CORRECT ANSWER
- Statistics can sometimes be very misleading. If too much is read into a small portion of the total survey, underlying trends (whatever the study may involve) can become "skewed." "Skewed" most nearly means A. Complicated B. Simplified C. Too focused D. Distorted - CORRECT ANSWER
- An EMT needs a disinfectant solution of alcohol that is 75% pure. What quantity of distilled water needs to be added to 5 liters of pure alcohol to obtain the desired strength? - CORRECT ANSWER
- During a general maintenance check, a mechanic notices that the radiator antifreeze solution in a particular truck has dropped below a recommended safe level. If the radiator to this truck currently contains 10 gallons of a 35% antifreeze solution, what quantity of pure antifreeze must be added to acquire a 55% antifreeze solution? (Note: Assume the truck's radiator capacity can accommodate the additional antifreeze without draining any of the existing solution.) A. 3.75 gallons B. 4.44 gallons C. 5.67 gallons D. 6.15 gallons - CORRECT ANSWER
- A pump is draining a basement subjected to flooding. After 2 hours of pumping, half of the water is removed. A secondary pump was brought into the salvage operation and between the two pumps; the water remaining in the basement was completely drained within 30 minutes. On this premise, what length of time would have been required for the second pump to do the same job without the assistance of the first pump? A. 1.33 hours