PRACTICE EXAM FIREFIGHER WITH CORRECT ANSWERS 2024

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 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 - correct answer C. Irritation of the respiratory system - correct answer 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? - 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. 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? - 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. 18. 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.** 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? - 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.** 21. 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. 22. 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.** 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. - 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.** 24. 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.** 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. - 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.** 26. What is the most important attribute a good driver has over someone with marginal driving ability? - correct answer 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. - 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.** 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? - 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.** 30. 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.** - correct answer - correct answer 33. 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 - correct answer 35. 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** - correct answer 37. 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 38. How can 1 yards to 16 inches be best expressed in terms of a ratio? A. 1.33: 16 B. 1.33: 1.5 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** 39. The number 49 is 42% of what number? A. 20.58 B. 79.4 C. 116.67 D. 136.1 - correct answer C. 116.67 set up proportion 49/X = 42/100 41. 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 ** 42. 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 43. 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 = 7.5/35 - correct answer 45. 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 (4.75 inches) = X cubic inches of displacement. X = 39.41 cubic inches.** 46. 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.** . 47. 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 = .87 48. 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 ** 49. 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* 50. 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)* 51. 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* 52. 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)* 53. 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 56. 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.** 57. 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.** 58. 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.** 59. 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.* 63. 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.* - correct answer - correct answer - correct answer - correct answer 69. 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.* 70. 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.* 71. 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.* 73. 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.* 90. 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.* 95. 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. 98. 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.* 99. 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.* 101. 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.* 16. 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.* 17. 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 18. 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 19. 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 20. 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 21. Gasoline engines become more efficient when they operate at sea level versus higher elevations. What is the most probable reason for this? - correct answer 24. 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 26. 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 27. Which kind of fire is probably the worst for firefighters to cope with? - correct answer 28. What is the reason that air should be bled from a hose immediately before advancing into a burning structure? - correct answer 29. 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 30. 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 31. If a driveshaft made 40 revolutions every 2 ½ minutes, what would be the shafts rpm (revolutions per minute)? - correct answer 34. 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 41. 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 43. 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 44. 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 45. 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 77. Which instrument could best determine if the interior diameters of two pipes is identical? - correct answer 79. 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 81. 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 82. 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 83. 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 84. 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 85. 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 86. 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 87. 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 88. 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 89. 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 90. 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 91. 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 92. 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 93. 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 B. 1.47 hours C. 1.52 hours D. 2.00 hours - correct answer 94. A tanker truck can be filled via an inlet port in 2 hours and drained by an outlet port in 3 hours. Assuming the tanker truck is empty and the person responsible for recharging the tank inadvertently left the outlet port open, how long would it take to fill the tank? A. 4.5 hours B. 5 hours C. 5.5 hours D. 6 hours - correct answer 95. Firefighter Halsey was headed home for the Thanksgiving holidays to see his family. They live in Des Moines, which is 650 miles away. After being on the road for 4 hours, Halsey encountered some bad weather that prompted him to slow down 15 miles per hour to maintain a safer driving pace. If Halsey took an hour along the way to fill up with gas and grab a bite to eat and subsequently reached Des Moines 11 hours after starting the trip, what speed was he driving prior to encountering the inclement weather? A. 65 mph B. 69 mph C. 72 mph D. 74 mph - correct answer 99. Which of the following is not considered in the truest form to be an example of a simple machine? A. A two-stroke gasoline powered engine B. A ramp used to lift heavy objects C. A wedge-shaped device used to split wood D. A pry bar - correct answer 102. Three firefighters attempted to lift an aluminum ladder that extended 25 feet in length and weighed 75 pounds. If one of the firefighters served to anchor one end of the ladder to the ground while the other two lifted the other end of the ladder at a point 10 feet from the anchorman, how much resistance would the ladder present to the two doing the actual lifting? A. 37.5 pounds of resistance B. 75 pounds of resistance C. 127.8 pounds of resistance D. 93.75 pounds of resistance - correct answer 103. Which of the statements below is true with respect to the manner in which the three firefighters attempted to lift the ladder as described in the previous question? A. Using leverage in this fashion makes it significantly easier for the firefighters to lift the ladder. B. The mechanical advantage gained through this kind of leverage is at least 2: 1. C. Leverage, under the circumstances, is actually working against the two firefighters attempting the lift, rather than serving to their advantage. D. The ladder would have been harder to lift at a point farther away from the anchorman. - correct answer 104. If gear 1 was turning at a speed of 400 rpm, how fast would gear 2 turn? A. The same speed B. Twice as fast C. Three times as fast D. 20% faster - correct answer 46. While searching burning homes or apartments, firefighters make a practice of checking inside closets, under beds, and behind furniture. What is the most likely reason for this practice? (A) The cause of the fire could be found there. (B) Valuable possessions may be found there. (C) Children and pets often hide in these places. (D) This is routine in search and rescue operations. - correct answer (C) Children commonly use these areas as places of safety to hide from something that frightens them. It is not uncommon, therefore, for them to retreat there during a fire. 47. The fire officer in command of operations has the responsibility of analyzing and evaluating the fire problem. Which of the following would not enter into this process? (A) The occupancy of the burning building. (B) The fire insurance coverage. (C) The time of day. (D) The height and area of the building. - correct answer (b) This is a factor to be considered after the fire has been determined to be of suspicious origin. 48. A firefighter who had just arrived at the scene of a visible fire grabbed his tools from the apparatus, ran to the door of the building, and broke it down. The action of the firefighter was (A) correct—this allowed the firefighters with the hose to gain entry and extinguish the fire. (B) incorrect—the firefighter should have broken a window first. (C) correct—quick, decisive action leads to the rescue of fire victims. (D) incorrect—the firefighter should have tried the doorknob first to see whether the door was locked. - correct answer (d) No time is lost in trying the doorknob. If it opens, entry will be faster and safer, and will result in less property damage. Note: Choice C is true, but does not relate directly to the stem of this question. The question concerns itself with the method of opening the door. 49. While riding on a train, you smell and see heavy smoke coming into the car through the windows. The best action you could take would be to (A) ask the passengers to close their windows. (B) tell everyone to vacate the car and go to the last car in the train. (C) get up quietly, leave the car, and find the conductor. (D) go quietly to the front of the car, pull the emergency stop cord, and direct the people to leave the train. - correct answer (a) This will establish the firefighter as a qualified, knowledgeable leader, and will reduce the possibility of panic, as well as controlling the smoke in the car. The train can proceed to the station, which is the safest and best place to disembark. MEMORY MOTTO - correct answer COAL WAS WEALTH (C)OAL WAS WEALTH - correct answer CONSTRUCTION: what was building made of & features of building C(O)AL WAS WEALTH - correct answer OCCUPANCY: What is the building used for, how many people are there, where are they CO(A)L WAS WEALTH - correct answer AREA: how large is the building, nummber stories, width and length COA(L) WAS WEALTH - correct answer LIFE: Is life in danger, how to get them out, if not where are the most dangerous areas COAL (W)AS WEALTH - correct answer WEATHER: what are the weather conditions, and what effect might they have COAL W(A)S WEALTH - correct answer AUXILIARY APPLIANCES : is there spinkler system or a standpipe hose system, portable fire extinguishers? COAL WA(S) WEALTH - correct answer SIZE: how many rooms are there, how do they differ, how many apartments are there, how many doors are there, how many windows, where are the hallways COAL WAS (W)EALTH - correct answer WATER: isa water supply near by, hydrant, water tank on roof, swimming pool COAL WAS W(E)ALTH - correct answer EXPOSURES: what surround the fire COAL WAS WE(A)LTH - correct answer APPARATUS: can the apparatus get close to the building COAL WAS WEA(L)TH - correct answer LOCATION: in that area or room is the fire burning, how could the occupant get out, how could the firefighter ger in to save a life or extinguish COAL WAS WEAL(T)H - correct answer TIME: what time is it, what would be the occupants be doing COAL WAS WEALT(H) - correct answer HEIGHT: how high is the fire are above the ground 39. You are a firefighter out with a group of friends. One of them asks you a technical question about fire protection, and you don't know the answer. The best response: (A) may not be accurate but sounds good. (B) is to admit that you don't know but will find out. (C) is to say that the subject is too technical. (D) is to raise another question and then change the subject. - correct answer (b) As a firefighter, you should have knowledge of fire protection. However, you are not expected to know everything. You should not pretend you do or make light of the subject. You should state you will learn the answer and get back to the person requesting the information. 40. While conducting a routine fire prevention inspection of a department store, a firefighter is told by the store manager that the entire inspection procedure is a waste of time. What is the most appropriate action for the firefighter to take? (A) Tell the manager that he is wrong. (B) Explain the benefits of the inspection program. (C) Agree with the store manager. (D) Continue the inspection. - correct answer (b) Many people do not know the true purpose of a fire prevention inspection. They feel it is a waste of time and will interfere with business. By explaining that the goal is to reduce or eliminate hazards that may cause a loss of business or lead to serious injuries of customers and employees, a firefighter often gains respect. 1. The steel-cutting blade is (A) made of aluminum. (B) used to cut windows. (C) an abrasive-type blade. (D) designed for cutting light sheet metal. - correct answer 2. For which of the following would the fire service all-purpose saw NOT be used? (A) Making cutting operations easier. (B) Cutting a cord of firewood. (C) Making fire operations more efficient. (D) Speeding up the ventilation process. - correct answer 3. The cut of the all-purpose saw is limited to a depth of (A) 2 inches. (B) 4 inches. (C) 6 inches. (D) 12 inches. - correct answer 4. To cut a wood floor the best blade would be the (A) aluminum blade. (B) silicon carbide blade. (C) steel-cutting blade. (D) carbide-tip blade. - correct answer 5. To breach a hole in a cinder-block wall the most effective tool is an all-purpose saw with a (A) high-speed abrasive blade. (B) carbide blade. (C) aluminum oxide blade. (D) silicon carbide blade. - correct answer 6. The best saw blade for cutting a ventilation hole in a roof is (A) a silicon blade. (B) a carbide-tip blade. (C) an oxide blade. (D) none of the above. - correct answer 7. The all-purpose saw is highly effective because of (A) its high speed. (B) the versatility of the saw blades. (C) its high horsepower. (D) the combination of high speed, high horsepower, and versatility. - correct answer 8. A firefighter alert for safety would use (A) the saw only on the ground. (B) only sharp blades. (C) a back-up firefighter to watch the operation. (D) only the carbide-tip blade. - correct answer 9. Which of the following would be INCORRECT to say about the all-purpose saw? (A) It is rarely used by the fire service. (B) It comes equipped with three types of blades. (C) It can cut almost any material. (D) It can be used at fires or emergencies. - correct answer 10. The horsepower rating of the all-purpose saw is approximately (A) 3.5 horsepower. (B) 4.5 horsepower. (C) 7.5 horsepower. (D) 6,000 horsepower. - correct answer 11. It would be INCORRECT to lift a relatively heavy pail of debris with (A) elbows and arms close to the body. (B) chin tucked in. (C) body weight over the object. (D) back straight. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 126). . Kindle Edition. - correct answer 12. If you are a firefighter confronted with the need to lift an extremely heavy object, you would be acting correctly if you (A) advised your superior that the object could not be lifted. (B) requested help from your superior. (C) tucked in your chin, gritted your teeth, and lifted the object yourself. (D) convinced yourself the object would not be too heavy if you used the proper lifting technique. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 126). . Kindle Edition. - correct answer 13. INCORRECT lifting (A) leads to headaches. (B) seldom occurs. (C) can result in a pulled muscle. (D) cannot be avoided. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 126). . Kindle Edition. - correct answer 14. It would be INCORRECT to say about the process of lifting that (A) there are seven basic steps for safe lifting. (B) many injuries incurred while lifting could be avoided. (C) lifting is seldom required outside our jobs. (D) injuries incurred while lifting are responsible for much lost time. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 126). . Kindle Edition. - correct answer 15. Poor lifting methods lead to sprains and strains. These injuries (A) occur only when on duty. (B) are an unavoidable hazard of the firefighter's job. (C) usually occur at night. (D) account for a large percentage of the time lost to injuries. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 126). . Kindle Edition. - correct answer 16. The term "calculated risk" is (A) an infrequently used expression. (B) not part of a firefighter's vocabulary. (C) the best-understood term in the fire service. (D) one of the most overworked and most deceptive phrases used in connection with safety. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 127). . Kindle Edition. - correct answer 17. A firefighter knows that (A) chance is a way of life. (B) Lady Luck and calculated risk are synonymous. (C) most people make a conscious effort to estimate a calculated risk. (D) even though the risk was calculated, it may still cause injury. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 128). . Kindle Edition. - correct answer 18. The main point of this passage is that (A) firefighters have to take risks. (B) injuries can be reduced by clear thinking. (C) following the rules for making a calculated risk will remove the threat of chance. (D) the firefighter's safety is the most important consideration in firefighting. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 128). . Kindle Edition. - correct answer 19. To make a meaningful calculated risk one must (A) discipline oneself to size up a situation rapidly and make moves based on job knowledge and know-how. (B) develop the firefighting skills that allow chance to become a way of life. (C) study the rules for probability theory and statistical analysis so that one can accurately determine the chance of an accident. (D) avoid working in areas that present unusual hazard potential. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 128). . Kindle Edition. - correct answer 20. Firefighters work in a hostile physical environment and are often faced with emergencies. It would be accurate to state that (A) firefighters are always required to take risks. (B) only some firefighters should take risks. (C) firefighters should evaluate the probability of success before taking a risk. (D) the calculation of risk is desirable but is time consuming, and firefighters often don't have time to do it. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 128). . Kindle Edition. - correct answer 21. It would be correct to say about "calculated risk" that (A) each of the two words has the same meaning. (B) risk cannot be calculated. (C) the term is badly misunderstood. (D) the term is confusing. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 128). . Kindle Edition. - correct answer 22. It would be INCORRECT for a fire officer to believe that (A) firefighters must accept something less than an absolute degree of safety. (B) risk may be taken without estimating the situation. (C) safety is a relative condition where firefighting is concerned. (D) self-discipline is an essential component of firefighting. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 128). . Kindle Edition. - correct answer 23. Which of the following statement is correct according to the passage? (A) Metals are the best conductors. (B) Convection is the same as conduction. (C) Heat radiation is a major cause of cancer. (D) Conduction occurs only in liquids. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 130). . Kindle Edition. - correct answer 24. In accordance with the phenomenon of convection, at a house fire heat should (A) disperse rapidly. (B) seek lower levels. (C) increase geometrically. (D) rise until stopped by a barrier. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 130). . Kindle Edition. - correct answer 25. Heat is transmitted through space by (A) conduction. (B) convection. (C) radiation. (D) none of the above. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 130). . Kindle Edition. - correct answer 26. The thermal transmission of fires occurs by all of the following EXCEPT (A) association. (B) conduction. (C) radiation. (D) convection. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 130). . Kindle Edition. - correct answer 27. Which of the following is correct in regard to the wavelengths of heat waves? (A) The shortest is ultrascopic. (B) The longest is infrared. (C) The shortest is ultrared. (D) The longest is infraviolet. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 130). . Kindle Edition. - correct answer 28. Which of the following statements is accurate? (A) Conduction occurs in all materials. (B) Liquids are good conductors. (C) Convection of heated air is rare. (D) All fluids are liquids. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 131). . Kindle Edition. - correct answer 29. Heat transmission is a constant problem. Fires spread by (A) conduction only. (B) thermal transmission. (C) the hot water in a boiler. (D) the sun. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 131). . Kindle Edition. - correct answer 30. Which of the following statements is INCORRECT? (A) The sun's rays are a form of convected heat energy. (B) Heat will travel through the water and rise in the pipes. (C) The air is coolest close to the floor. (D) Radiation travels in straight lines. Murtagh,James; Haefner,Darryl (). Barron's Firefighter Candidate Exams, 7th edition (Page 131). . Kindle Edition. - correct answer