- 1. Types of poisonous gases
A) All of the these
B) Hydrogen Cyanide (HCN)
C) None of these
D) Hydrogen Chloride (HCL)
E) Hydrogen Sulfide (HS)
- 2. ___________ a fire gas formed during fires involving organic material containing sulfur
A) Hydrogen Cyanide
B) Hydrogen Chloride
C) Hydrogen Sulfide
- 3. ___________ a gas which can be fatal after only a few breaths, is produced in fires involving chloride-containing plastic.
A) Hydrogen Sulfide
B) Hydrogen Chloride
C) Hydrogen Cyanide
- 4. It is a luminous body of a burning gas which gets hotter and less luminous when mixed with more oxygen.
A) Flame
B) Fire gases
C) Fire
- 5. _________ a toxic fire gas found in oxygen-starve fires involving nitrogen-containing materials
A) Hydrogen Chloride
B) Hydrogen Cyanide
C) Hydrogen Sulfide
- 6. Hydrogen Cyanide contains of what materials ?
A) Wool, silk, urethane, polymides, acrylics.
B) Rubber, hair, wood, meat, hides
C) plastic
- 7. Hydrogen Sulfide contains of what materials ?
A) Wool, silk, urethane, polymides, acrylics.
B) Rubber, hair, wood, meat, hides
C) Plastic
- 8. Hydrogen Chloride containing of what materials ?
A) Wool, silk, urethane, polymides, acrylics.
B) None of these
C) Plastic
D) Rubber, hair, wood, meat hides
- 9. It is the manifestation of fire when the fire is in its gas phased combustion.
A) Fire
B) Flame
C) None of these
- 10. _______ is the visible light-emitting part of a fire
A) Flame
B) Fire
C) Combustion
- 11. a chemical reaction releasing a large amount of heat energy is the driving force behind the phenomenon occurring
A) Combustion
B) exothermic reaction
C) None of these
- 12. _______________ a reddish-orange in color, it deposits soot because it is a product of incomplete combustion, it has lower temperature.
A) Non- luminous flame
B) None of these
C) Luminous flame
- 13. _____________ bluish in color, it does not deposit soot because it is a product of complete combustion; it has a higher temperature than luminous flame.
A) Luminous flame
B) None of these
C) Non-luminous flame
- 14. According to Burning Fuel and Air Mixture
A) Premixed flame, Diffusion flame
B) Luminous flame, Non- luminous flame
C) None of these
D) Laminar flame, Turbulent flame
A) Premixed flame, Diffusion flame
B) Luminous flame, Non-luminous flame
C) Laminar flame, Turbulent flame
D) None of these
- 16. ____________ example of flame of the oxyacetylene torch diffused-dispersed; widely spread.
A) Premixed Flame
B) Laminar Flame
C) Diffusion Flame
D) Luminous Flame
- 17. This flame when a particle follows a smooth path through a gaseous flame.
A) Turbulent Flame
B) Diffusion Flame
C) Laminar Flame
- 18. According to Color and Completeness of Combustions.
A) Laminar flame, Turbulent flame
B) Premixed flame, Diffusion flame
C) Luminous flame, Non-luminous flame
D) None of these
- 19. example of Bunsen burner.
A) Premixed Flame
B) Turbulent Flame
C) Diffusion Flame
D) Laminar Flame
- 20. Those having unsteady, irregular swirls and eddies.
A) Turbulent Flame
B) Laminar Flame
- 21. A form of energy measured in degree of temperature, it is the product of combustion that spread the fire
A) Fuel
B) Oxygen
C) Heat
- 22. __________ is the most common form of energy found on earth.
A) Heat
B) Temperature
C) Oxygen
D) Nitrogen
A) Turbulent Flame
B) Laminar Flame
A) Turbulent Flame
B) Laminar Flame
- 25. ___________ is an indicator of heat and is measure the warmth or coldness of an object based on some standard.
A) Heat
B) Temperature
C) Energy
- 26. In most cases at present, the standard used is based on the freezing
A) 320°F and O°C
B) 2120°F and 1000°C
- 27. _________ is measured using degrees Celsius in Sl and degrees Fahrenheit in the Customary System.
A) Celsius
B) Temperature
C) Heat
A) 320F and 0°C
B) 2120°F and 1000°C
- 29. The ratio of the weight of a solid or substance to the weight of an equal volume of water
A) Specific gravity
B) Vapour Density
C) Vapor Pressure
- 30. a visible product of incomplete combustion, a mixture of oxygen, nitrogen, CO, CO2 and finely divided particles released from the burning material.
A) Heat
B) Flame
C) Smoke
D) Fire gases
- 31. 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) Vapour Density
B) Specific gravity
C) Boiling Point
D) Vapor Pressure
- 32. the measure of thermal degree of the agitation of molecules of a given substance
A) Temperature
B) Vapor Pressure
C) Specific gravity
D) Boiling Point
- 33. the force exerted by the molecules on the surface of the liquid at equilibrium.
A) Surface Tension
B) Vapour Density
C) Vapor Pressure
- 34. the temperature at which the material will give off ample vapors to keep burning there is usually about 5 to 10 degrees difference between the flashpoint and the firepoint of most materials
A) Temperature
B) Boiling Point
C) Flash Point
D) Fire Point
- 35. the constant temperature at which the vapor pressure of the liquid is equal to the atmospheric pressure
A) Flash Point
B) Fire Point
C) Boiling Point
- 36. the minimum temperature to which the substance in the air must be heated in order to initiate or cause self-contained combustion without the addition of heat from outside sources.
A) Temperature
B) Boiling Point
C) Ignition temperature or kindling temperature
D) Flash Point
- 37. the temperature at which a material its not hot enough to keep burning, but still gives off enough vapors to cause a flame to "flash" across the surface.
A) Flash Point
B) Boiling Point
C) Fire Point
- 38. _________ is used to express the condition of a fuel vaporizing whether or not it is vaporizing fast enough to keep burning
A) Fire Point
B) Flash Point
C) Boiling Point
D) Temperature
- 39. ___________ reactions or changes that release or give off energy heat thus they produce substances with less energy than the reactants.
A) Endothermic Reaction
B) Exothermic Reaction
- 40. _________ are changes whereby energy heat is absorbed or is added before the reaction takes place.
A) Endothermic Reaction
B) Exothermic Reaction
- 41. _______ a chemical change in which combustible material fuel and an oxidizing agent react.
A) Flame
B) Combustion
C) Oxidation
- 42. the manifestation of fire when the fire is in its gas-phased combustion. A matter that is produced by fire.
A) Exothermic Reaction
B) Oxidation
C) Combustion/Flame
D) Endothermic reaction
- 43. Factors to be considered in Determining Phases of Burning:
A) All of these
B) None of these
C) The amount of time the fire has burned
D) The amount and type of combustible present.
E) The ventilation characteristics of the confining structure
- 44. Fires generally have three (3) progressive stages based on the following factors:
A) Incipient/Beginning Phase
B) Free-Burning Phase
C) None of these
D) All of these
E) Smoldering Phase
- 45. ____________ in which materials or structures are burning in the presence of adequate oxygen.
A) Smoldering Phase
B) Incipient/Beginning Phase
C) Free-Burning Phase
- 46. the final phase of burning wherein flame ceases but smoke and heat. completely fill the confined room.
A) Free-Burning Phase
B) Incipient/Beginning Phase
C) Smoldering Phase
- 47. ___________ it is the initial stage of fire.
A) Smoldering Phase
B) Incipient/Beginning Phase
C) Free-Burning Phase
- 48. _________ occurs when a room or other area is heated enough that flames sweep over the entire surface.
A) Flashover
B) Firefighters
C) Backdraft
- 49. Any action taken during fire fighting operations that allows air to mix with these hot gases can result in an explosive ignition called ___________.
A) Flashover
B) Backdraft
- 50. 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) Firefighters
B) Backdraft
C) Flashover
- 51. gases coming from the materials in a room rise and collect at the ceiling thus, these gases ignite, bringing sheet of flame across the ceiling and raising the overall temperature of the room as the gases are consumed.
A) Firefighters
B) Backdraft
C) Flashover
D) Combustible
- 52. occurs with the initial ignition of the fire in the original object, but fire in the original object, but on a much larger scale.
A) Backdraft
B) Flashover
C) Firefighters
- 53. The point at which gases produced by pyrolysis ignites
A) Flashover
B) Rollover
C) Thermal Decomposition
- 54. It involves only any gases and is typified by a brief, sudden ignition in the overhead air.
A) Rollover
B) Flash fire
C) Flashover
- 55. the three elements necessary to create or produced fire in equal proportion.
A) Fire Tetrahedron Theory
B) Life Cycle Of Fire Theory
C) Fire Triangle Theory
A) Moisture
B) Free radical
C) Decomposition
- 57. stages or steps wherein fire is created
A) Life Cycle Of Fire Theory
B) Fire Triangle Theory
C) Fire Tetrahedron Theory
- 58. there are the ways to extinguish fire:
A) All of these
B) Cut-off the oxygen supply
C) Remove the fuel
D) Reduce the temperature
- 59. the fourth element of fire known as the "Chemical Chain Reaction"
A) Fire Tetrahedron Theory
B) Fire Triangle Theory
C) Life Cycle Of Fire Theory
A) Heat,Fuel,Air
B) Heat, Oxidation,Fuel
C) Heat, Fuel, Oxygen
D) Chemical chain reaction, Heat, Fuel, Oxidation
- 61. _______ a colorless and odorless gas and one of the composition of air that supports the fire which is approximately 21% by volume
A) Fuel
B) Nitrogen
C) Heat
D) Oxygen
- 62. _______ a form of energy measured in degree of temperature, the product of combustion that caused the fire spread of fire.
A) Heat
B) Energy
C) Fuel
- 63. _______ any substance or combustibles which reacts chemically with oxygen and produces flames.
A) Fuel
B) Oxygen
C) Combustion
- 64. The physical state of the fuel of gases:
A) coal, wood, paper, cloth, grease,
B) natural gas, propane, butane, hydrogen
C) gasoline, kerosene, turpentine, alcohol, paint, varnish, lacquer,
- 65. The physical state of the fuel of liquid:
A) gasoline, kerosene, turpentine, alcohol, paint, varnish, lacquer
B) coal, wood, paper, cloth, grease
C) natural gas, propane, butane, hydrogen
- 66. The physical state of the fuel of solid:
A) gasoline, kerosene, turpentine, alcohol, paint, varnish, lacquer,
B) coal, wood, paper, cloth, grease,
C) natural gas, propane, butane, hydrogen,
- 67. Common types of solid
A) Bulky
B) Finely Divided
C) All of these
D) Dust
- 68. Common types of solid Bulky:
A) Saw Dust, Sugar, Grain
B) Plastic, Paper, Cork, Leather
C) Coal, Wood , Wax ,Grease
- 69. Common types of solid Finely Divided:
A) Saw Dus, Sugar, Grain
B) Plastic, Paper, Cork, Leather
C) Coal, Wood, Wax, Grease
- 70. Common types of solid Dust;
A) Plastic, Paper, Cork, Leather
B) Saw Dus, Sugar, Grain
C) Coal, Wood, Wax, Grease
- 71. These four components have been classically symbolized by four-sided solid geometric form called ________.
A) tetrahedron
B) Chemical chain reaction
- 72. The fourth element of the tetrahedron explanation is known as ____________.
A) chemical reactivity or chemical reaction
B) chemical change
C) chemical chain reaction
- 73. material or substance that yield oxygen or oxidizing gases during the process of a chemical reaction.
A) Oxygen (Oxidizing Agent)
B) Fuel (Reducing Agent)
C) Heat ( Temperature)
- 74. material or substance being burned in the combustion process.
A) Fuel (Reducing Agent)
B) Oxygen (Oxidizing Agent)
C) Heat ( Temperature)
- 75. ________ are not themselves combustible, but they support combustion when combined with fuel. For purposes of discussion, the oxygen in the air in the surrounding area is considered the primary oxidizing agent.
A) Oxidizers
B) Oxygen
C) Oxidation
- 76. The fuel in a combustion reaction is known as the _________.
A) reducing agent
B) Oxidizing agent
- 77. the energy component of the fire tetrahedron.
A) Heat ( Temperature)
B) Fuel (Reducing Agent)
- 78. ____________ a series of events that occur in sequence with the results of each individual reaction being added to the rest.
A) Combustion Reaction
B) Self-Sustained Chemical Reaction
C) Reducing Agent
- 79. A form of energy generated by the transmission of some other form of energy, as in combustion or burning.
A) Fuel (Reducing Agent)
B) Heat (Temperature)
C) Self-Sustained Chemical Reaction
A) All of these
B) Causes the continuous production and ignition of fuel vapours or gases to continue the combustion reaction.
C) Provides the energy necessary for ignition;
D) Causes pyrolysis or vaporization of solid and liquid fuels and the production of ignitable vapours or gases.
E) None of these
- 81. The most common source of heat in combustion reactions an energy released as a result of chemical reaction such as combustion. When any combustibles is in contact with oxygen, oxidation occurs.
A) Nuclear energy
B) Heat
C) Electrical energy
D) Chemical energy
- 82. ____________ an energy created by friction and compression.
A) Mechanical energy
B) Chemical energy
C) Light
D) Electrical energy
- 83. _______ an energy that is transferred between two objects of differing temperature such as sun and the earth.
A) Chemical energy
B) Light
C) Electrical energy
D) Heat
- 84. ________ an energy developed when electrons flow through a conductor. Electrical energy can generate temperatures high enough to ignite any combustible materials near the heated gases.
A) Nuclear energy
B) Electrical energy
C) Chemical energy
D) Mechanical energy
- 85. ____________ an energy generated when atoms either split apart (fission) or combine (fusion). Nuclear power plants generate power as a result of the fission of Uranium-235.
A) Chemical energy
B) Electrical energy
C) Mechanical energy
D) Nuclear energy
- 86. ________ a visible radiation created at the atomic level such as flame produced during combustion.
A) Sun
B) Lights
C) Energy
D) Heat
- 89. It is a complex sequence of exothermic chemical reactions between a fuel and an oxidant accompanied by the production of heat or both heat and light in the form of either a glow or flames appearance of light flickering.
A) Nature of fire
B) Pyrolysis
C) Fire
D) Combustion
- 90. A self-sustaining chemical reaction producing energy or products that cause more reaction of the same kind.
A) Nature of fire
B) Exothermic chemical
C) Combustion
D) Fire
- 91. This process is known as _______.
A) Chemical reaction
B) Combustion
C) Pyrolysis
- 92. The chemical process whereby fire consumes the most solid part of the fuel.
A) Fire
B) Decomposition
C) Pyrolysis
D) Combustion
- 93. It is the thermal decomposition of solid fuel through the action of heat.
A) Combustion
B) Pyrolysis
C) Fire
D) Burn
- 94. The Process of Pyrolysis:
A) Decomposition takes place moisture in the fuel is converted into vapour;
B) Free-radicals undergo combustion if proper amount of oxygen is present.
C) The fuel is heated until its temperature reaches its fire point;
D) Decomposition produces combustible vapours that rise to the surface of the fuel. These combustible vapours are technically termed as free-radicals
E) All of these
- 95. vapours are technically termed as ________.
A) Free-radicals
B) Decomposition
C) Flash Point
D) Moisture
- 96. a rapid, self-sustaining oxidation process accompanied by the evolution of heat and light of varying intensity
A) Heat
B) Fire
C) Fuel
- 97. the branch of knowledge that deals with industrial arts and sciences
A) Technology
B) Flame
C) Fire technology
D) Fire
- 98. aids in combustion; comes from the atmosphere we breath; the atmosphere contains: 21% oxygen, 78% nitrogen and 1% impurities
A) Heat
B) Fuel
C) Oxygen
- 100. the application of such knowledge that is used to produce the material necessity of society
A) Technology
B) Heat
C) Fire
D) Combustion
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