- 1. Heat is generated when a gas is compressed in a container or cylinder.
A) heat of friction
B) all of these
C) none of these
D) heat of compression
- 2. any substance which reacts chemically with oxygen and produces flames. The most important element of fire.
A) Fuel
B) Heat
C) Gasoline
D) Oxygen
- 3. It is the most common source of heat in combustion reactions. When any combustibles are in contact with oxygen oxidation occurs. The reaction of this process results in the production of heat. Examples: Heat generated from a burning match, Self-heating (spontaneous heating).
A) chemical energy
B) nuclear energy
C) electrical energy
D) mechanical energy
- 4. a form of energy generated by the transmission of some other form of energy, as in combustion or burning.
A) Heat
B) Oxygen
C) Fuel
D) Gasoline
- 5. It can generate temperatures high enough to ignite any combustible materials near the heated area.
A) mechanical energy
B) electrical energy
C) nuclear energy
D) chemical energy
- 6. molecules are closely packed together
A) Gas
B) Solid
C) Nitrogen
D) Liquid
- 7. It is generated when atoms either split apart (fission) or combine (fusion).
A) nuclear energy
B) mechanical energy
C) chemical energy
D) electrical energy
- 8. How many percent of oxygen are in normal air?
A) 1%
B) 21%
C) 16%
D) 78%
- 9. Is a self-sustaining chemical reaction producing energy or products that cause more reactions of the same kind.
A) combustion
B) Flash point
C) Fire
D) Fire point
- 10. It is a product of a fusion reaction (a form of nuclear energy).
A) nuclear energy
B) electrical
C) friction
D) solar energy
- 11. How many percent of nitrogen are in normal air?
A) 21%
B) 16%
C) 78%
D) 1%
- 12. molecules are loosely packed
A) Nitrogen
B) Gas
C) Solid
D) Liquid
- 13. a colorless, odorless gas and one of the compositions of air which is approximately 21% by volume.
A) Gasoline
B) Fuel
C) oxygen
D) Heat
- 14. The final phase of burning wherein flame ceases but dense smoke and heat completely fill the confined room. •
A) Incipient/Beginning phase
B) Free-Burning Phase
C) Smoldering Phase
D) burning stage
- 15. The supply of the fuel or material is cut off.
A) smoothering
B) blanketing
C) Cooling
D) Starving
- 16. The oxygen content of air is reduced below 15% in volume by using chemicals, water, fog, sand blankets, etc.
A) Cooling
B) Smothering or Blanketing
C) Starving
D) Thristing
- 17. The temperature of the substance is lowered below the burning point by using water or a water solution.
A) Cooling
B) Smoothering
C) Starving
D) Blanketing
- 18. 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 diethyline. These types of materials burn at high temperatures and will react violently with water, air, and/or other chemicals
A) Class B
B) Class D
C) Class C
D) Class A
- 19. 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 c
B) Class B
C) Class D
D) Class A
- 20. 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 D
B) Class C
C) Class B
D) Class A
- 21. Materials involving vegetable fibers, wood, paper straw, grain, and grass; combustible minerals such as coal and coke. Nearly all thrash fires are considered?
A) Class C
B) Class B
C) Class A
D) Class D
- 22. Occurs when a room or other area is heated enough 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) Fire point
B) backdraft
C) oxidation
D) flash over
- 23. Any action taken during firefighting operations that allows air to mix with these hot gases can result in an explosive ignition called?
A) Oxidation
B) Backdraft
C) Flashover
D) Fire point
- 24. It is the point where ignition actually occurs, flames
A) Incipient Stage
B) Smoldering or smoke stage
C) flames • Heat, Conflagration, or Explosion stage
D) Flame Stage
- 25. 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) Incipient Stage
B) Heat, Conflagration, or Explosion stage
C) Flame Stage
D) Smoldering or smoke stage
- 26. The final phase of burning wherein flame ceases but dense smoke and heat completely fill the confined room.
A) Free-Burning Phase
B) Incipient/Beginning phase
C) Free-Burning Phase
D) Smoldering Phase
- 27. The second phase of burning in which materials or structures are burning in the presence of adequate oxygen.
A) Free-Burning Phase
B) Flame Stage
C) Smoldering Phase
D) Incipient/Beginning phase
- 28. is the initial stage of fire.
A) Incipient/Beginning phase
B) Smoldering Phase
C) Flame Stage
D) Free-Burning Phase
- 29. It iswhich made the fire started?
A) none of these
B) all of these
C) cause
D) Reason
- 30. It iswhich made the fire started?
A) All of these
B) Cause
C) reason
D) none of these
- 31. 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) All of these
B) False
C) Maybe
D) True
- 32. No matter how small, the fire must be investigated
A) True
B) None of these
C) False
D) Maybe
- 33. These are the ways to extinguish fire, except one?
A) Remove the fuel
B) Reduce the temperature
C) supply fuel
D) Cut off the oxygen supply
- 34. 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 supression
B) fire control
C) fire extinguisher
D) All of these
- 35. The removal of the fuel, as in the example of turning off a valve in a gas line prevents the fuel and oxygen from coming together. If fuel is not available, then heat, regardless of the temperature, cannot affect the fuel,
A) smoothering
B) Cooling
C) chemical chain reaction
D) Separation
- 36. Excludes the oxygen from the fuel so that the gases or vapors of the fuel cannot ignite and continue the combustion. CO2 and AFFF are used for this purpose.
A) smoothering
B) Cooling
C) chemical chain reaction
D) Separation
- 37. It is the best general cooling agent for firefighting purposes.
A) Water
B) Oxygen
C) Air
D) Fuel
- 38. It is aprocess uses an extinguishing agent whose primary characteristic, is heat absorption.
A) Separation
B) Smothering
C) Cooling
D) Blanketing
- 39. Determine where the fire vested first by comparing burn char, smoke, and heat patterns around windows, doors, and roofs.
A) None of these
B) Interior
C) Exterior
D) All of these
- 40. fires which are not classified as to cause.
A) Natural fire
B) Accidental fire
C) Unknown fire
D) Arson
- 41. 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) Arson
D) Accidental fire
- 42. fire causes where human action is involved directly or indirectly. i.e., a). Careless disposal of smoking materials; b). workers using welding-cutting equipment
A) Accidental fire
B) Arson
C) natural fire
D) Arsonist
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