- 1. Molecules are loosely packed.
A) packed
B) liquid
C) nitrogen
D) gas
- 2. heat is generated when a gas is compressed in a container or cylinder.
A) heat of friction
B) none of these
C) all of these
D) heat of compression
- 3. it can generate temperature high enough to ignite any combustible materials near the heated area
A) mechanical energy
B) nuclear energy
C) chemical energy
D) electrical energy
- 4. the movement of two surfaces against each other. this movement produced sparks being generated.
A) heat of compression
B) heat of friction
C) none of these
D) all of these
- 5. it is generated when atoms either split apart (fission) or combine (fusion)
A) electrical energy
B) chemical energy
C) nuclear energy
D) mechanical energy
- 6. a colorless, odorless gas and one of the compositions of air which is approximately 21% by volume.
A) oxygen
B) heat
C) fuel
D) gasoline
- 7. how many percent of oxygen are in normal air?
A) 1%
B) 78%
C) 16%
D) 21%
- 8. energy is created by friction and compression
A) electrical energy
B) nuclear energy
C) solar energy
D) mechanical energy
- 9. It is a product of a fusion reaction (a form of nuclear energy)
A) friction
B) solar energy
C) nuclear energy
D) electrical
- 10. is a self-sustaining chemical reaction producing energy or products that cause more reactions of the same kind.
A) fire point
B) flashpoint
C) combustion
D) fire
- 11. any substance which reacts chemically with oxygen and produces flames. The most important element of fire
A) gasoline
B) fuel
C) heat
D) oxygen
- 12. The measure of the thermal degree of the agitation of molecules of a given substance; the measure of the molecular activity within a substance
A) specific gravity
B) vapor density
C) vapor pressure
D) temperature
- 13. The luminous body of a burning gas gets hotter and less luminous when mixed with more oxygen. Flame fades when carbon burns completely, so the flame is considered a product of incomplete combustion.
A) heat
B) smoke
C) fire gases
D) flame
- 14. A form of energy measured in the degree of temperature, it is the product of combustion that spread the fire. It causes burns and other injuries such as dehydration, heat exhaustion, and respiratory tract injuries. Heat, oxygen depletion, and carbon monoxide formation are the primary hazards in fires/.
A) heat
B) smoke
C) flame
D) fire
- 15. Change whereby energy (heat) is absorbed or added before the reaction takes place.
A) oxidation
B) combustion/flame
C) exothermic reaction
D) endothermic reaction
- 16. The temperature at which a material is not hot enough to keep burning, but still gives off enough vapors to cause a flame to "flash" across the surface. The term "flashpoint" is used to express the condition of a fuel vaporizing, whether or not it is vaporizing fast enough to keep burning.
A) boiling point
B) fire point
C) flashpoint
D) vapor pressure
- 17. the weight of a volume of pure gas compared to the weight of a volume of dry air at the same temperature and pressure
A) specific gravity
B) vapor density
C) vapor pressure
D) temperature
- 18. it is the visible product of incomplete combustion, usually a mixture of oxygen nitrogen, carbon dioxide, carbon monoxide, finely divided particles of soot and carbon, and a miscellaneous assortment of products released from the burning material.
A) fire
B) flame
C) smoke
D) heat
- 19. are those that remain when other products of combustion cool to normal temperature. Common combustibles contain carbon, which forms carbon dioxide and carbon monoxide when burned. Other fire gases include hydrogen sulfide, sulfur dioxide, ammonia, hydrogen cyanide, nitrous and nitric acid, phosgene, and hydrogen chloride.
A) smoke
B) heat
C) flame
D) fire gases
- 20. reactions or changes that release of give off energy (heat) thus they produce substances with less energy that the reactants.
A) exothermic reaction
B) combustion/flame
C) oxidation
D) endothermic reaction
- 21. the constant temperature at which the vapor pressure of the liquid is equal to the atmospheric pressure
A) ignition temperature or kindling temperature
B) ire point
C) boiling point
D) fire point
- 22. a chemical change in which combustible material (fuel) and an oxidizing agent react.
A) combustion/flame
B) exothermic reaction
C) endothermic reaction
D) oxidation
- 23. it refers to the chemical process whereby fire consumes the most solid part of the fuel. It is the thermal decomposition of a solid fuel through the action of heat.
A) combustion
B) oxidation
C) pyrolysis
D) combustion
- 24. the ratio of the weight of a solid or substance to the weight of an equal volume of water
A) vapor density
B) vapor pressure
C) specific gravity
D) temperature
- 25. the manifestation of fire when the fire is in its gas-phased combustion. A matter that is produced by a fire.
A) combustion/flame
B) exothermic reaction
C) endothermic reaction
D) oxidation
- 26. the force exerted by the molecules on the surface of the liquid at equilibrium.
A) specific gravity
B) temperature
C) vapor density
D) vapor pressure
- 27. the final phase of burning wherein flame cease but dense smoke and heat completely fill the confined room
A) smoldering phase
B) burning stage
C) free-burning phase
D) incipient/beginning phase
- 28. the supply of the fuel or material is cut off.
A) blanketing
B) starving
C) cooling
D) smoothering
- 29. the oxygen content of air is reduced below 15% in volume by using chemicals, water, fog, sand, blankets, etc.
A) smoothering or blanketing
B) thristing
C) cooling
D) starving
- 30. the temperature of the substance is lowered below the burning point by using water or water solution.
A) blanketing
B) smoothering
C) cooling
D) starving
- 31. these are materials involving combustible metals, alloys, or metal compounds either in a solid, semi-solid or liquid state. they may further reduce shavings, grindings, granules, or dust. Some liquid metals are kept in a liquid state under pressure. Usually, these liquid metals are extremely dangerous. Some of the more unusual metals are sodium, magnesium, titanium, sodium potassium, and uranium as well as pyrophoric organometallic reagents such as alkyl lithium, grog nards, and diethylzinc. These type of materials burn at high temperatures and will react violently with water, air, and/or other chemicals
A) Class C
B) Class D
C) Class B
D) Class A
- 32. this type of fire involves electrical motors, electrical appliances, and apparatus. Actually, a Class C fire is composed usually of Class A and Class B materials or a combination of both. The use of water is usually dangerous because of the risk of electrical shock
A) Class D
B) Class B
C) Class A
D) Class C
- 33. materials including petroleum products such as gasoline, fuel oils, lubricating oils, and greases; animal fats such as butter, lard, and tallow; vegetable extracts such as alcohol, linseed oil, and turpentine; vegetable compounds such as shortenings and oleomargarines; natural gases and compressed gases such as butane, propane, hydrogen, and acetylene.
A) Class B
B) Class A
C) Class C
D) Class D
- 34. Materials involving vegetable fibers, wood, paper, straw, grain, and grass; combustible minerals such as coal and coke. Nearly all thrash fires considered?
A) Class A
B) Class D
C) Class B
D) Class C
- 35. Occurs when a room or other area that flames sweep over the entire surface. Firefighters originally believed that combustible gases released during the early stages of the fire cause flashover by collecting at the ceiling and mixing with air until they burst into flames
A) firepoint
B) flash over
C) oxidation
D) backdraft
- 36. any action taken during firefighting operations that allows air to mix with these hot gasses can result in an explosive ignition called?
A) oxidation
B) firepoint
C) flash over
D) backdraft
- 37. It is the point where ignition actually occurs, flames
A) Smoldering or smoke stage
B) flames stage
C) Incipient Stage
D) Heat, Conflagration, or Explosion stage
- 38. This stage closely follows the flame stage , and once this stage is reached the fire can normally be said to be out of control.
A) Heat, Conflagration, or Explosion stage
B) Smoldering or smoke stage
C) Flame Stage
D) Incipient stage
- 39. The final phase of burning wherein flame ceases but dense smoke and heat completely fill the confined room.
A) Incipient/Beginning Phase
B) Smoldering Phase
C) Free-Burning Phase
D) Free-Burning Phase
- 40. The second phase of burning in which materials or structures are burning in the presence of adequate oxygen.
A) Flame Stage
B) Free-Burning Phase
C) Smoldering Phase
D) Incipient/Beginning Phase
- 41. It is the initial stage of fire.
A) Free-Burning Phase
B) Flame Stage
C) Smoldering Phase
D) Incipient/Beginning Phase
- 42. the ''reason'' establishes the WHY of the fire and investigation. Both are required to correctly classify the fire, and also to provide guidance in establishing corrective action to preclude a recurrence of the incident.
A) all of these
B) true
C) false
D) none of these
- 43. The ''cause'' explain the existence of the fire, or the WHAT of the investigation
A) true
B) all of these
C) false
D) none of these
- 44. which led to the cause of a fire
A) cause
B) all of these
C) none of these
D) reason
- 45. It is which made the fire started?
A) cause
B) all of these
C) none of these
D) reason
- 46. fires cannot be determined without a long and careful investigation.
A) maybe
B) false
C) none of these
D) true
- 47. One of the most difficult problems to solve is to determine the cause of the fire since the flames generally consume any evidence of what occurred
A) true
B) all of these
C) maybe
D) false
- 48. No matter how small, the fire must be investigated
A) false
B) none of these
C) true
D) maybe
- 49. These are the ways to extinguish fire, except one?
A) supply fuel
B) Cut off the oxygen supply
C) Reduce the temperature
D) Remove the fuel
- 50. means showing down the rate of burning, whereas, control means keeping the fire from spreading or holding the fire to one area. Extinguishment is putting the fire completely out.
A) Fire suppression
B) fire extinguisher
C) all of these
D) fire control
- 51. The removal of the fuel, as in the example of turning off a valve in a gas line prevents the fuel and oxygen from the coming together. If is not available, then heat, regardless of the temperature, cannot affect the fuel.
A) cooling
B) chemical chain reaction
C) separation
D) smoothering
- 52. Excludes the oxygen from the fuel so that the gases or vapors of the fuel cannot ignite and continue the combustion. CO2 and AFF are used for this purpose.
A) chemical chain reaction
B) cooling
C) separation
D) smoothering
- 53. it is the best general cooling agent for firefighting purposes.
A) oxygen
B) water
C) fuel
D) air
- 54. it is a process uses an extinguishing agent whose primary characteristics, is heat absorption.
A) blanketing
B) seperation
C) smoothering
D) cooling
- 55. conduct a cursory examination or general survey of the entire structure of the interior for the extent of fire damage. Establish the class of the fire duration and approximate burn time by checking the following.
A) all of these
B) exterior
C) none of these
D) interior
- 56. determine where the fire vested first by comparing burn char, smoke, and heat patterns around windows, doors, and roofs.
A) exterior
B) interior
C) none of these
D) all of these
- 57. fires which are not classified as to cause.
A) natural fire
B) unknown fire
C) accidental fire
D) arson
- 58. the fire was caused as a result of the willful and criminal activities of some persons, i.e., incendiary fire.
A) natural fire
B) unknown fire
C) accidental fire
D) arson
- 59. fire causes where human action in involved directly or indirectly. i.e., a). careless disposal of smoking materials; b). working using welding-cutting equipment
A) natural fire
B) arson
C) arsonist
D) accidental fire
- 60. fire is caused naturally without human intervention or aid; such as lightning, spontaneous ignition, or mechanical malfunction of equipment.
A) accidental fire
B) natural fire
C) arson
D) arsonist
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