Nozzles, Fire Streams and Foam Rapid Fire

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Author:
kulhanjian
ID:
166261
Filename:
Nozzles, Fire Streams and Foam Rapid Fire
Updated:
2012-08-17 12:37:15
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Rapid Fire
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Nozzles, Fire Streams and Foam Rapid Fire Questions
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  1. What position should the nozzleman hold the nozzle when waiting to move into a burning room?
    Up and in the ready position
  2. 2. At sea level what is the atmospheric pressure?

    A.) 13.3 psi
    B.) 14.5 psi
    C.) 14.7 psi
    D.) 13.1 psi
    14.7 psi
  3. Which type of attack combined with ventilation is the typical attack in structural firefighting?

    A.) Indirect
    B.) Combination
    C.) Direct
    D.) Singular
    Combination
  4. Which special purpose nozzle is designed to spray water to protect against exposure to heat?

    A.) Water curtain
    B.) Piercing
    C.) Cellar
    D.) Bresnan distributor
    Water curtain
  5. What happens when the gallonage and pattern are adjustedon the fog nozzle that makes the changes detectable in the dark?

    A.) Shifts
    B.) Clicks
    C.) Lights up
    D.) Squeaks
    Clicks
  6. Which type of foam application is made from natural protein materials, such as animal blood?

    A.) Fluoroprotein film-forming
    B.) Fluoroprotein
    C.) Protein
    D.) Alcohol-resistant
    Protein
  7. Which type of friction loss occurs when water moves through the valves and turns of the ladder pipe?

    A.) Pressure
    B.) Nozzle
    C.) Elevation
    D.) Appliance
    Appliance
  8. Which foam application technique involves the foam striking the ground before the fire and rolling into the fire?

    A.) Bounce-off
    B.) Bank-back
    C.) Snowflake
    D.) Bank-in
    Bank-in
  9. Which principle of friction loss with all other variable sheld constant is NOT correct?

    A.) For any given velocity, the friction loss will be aboutthe same regardless of the water pressure
    B.) Friction loss varies approximately with the cube of theflow
    C.) Friction loss will decrease as the size of the hosediameter gets larger
    D.) Friction loss varies directly with the length of the hose
    Friction loss varies approximately with the cube of theflow
  10. Which is most likely the most commonly used polar solvent?

    A.) Ketones
    B.) Methyl alcohol
    C.) Acetones
    D.) Ethyl alcohol
    Ethyl alcohol
  11. Who adjusts the spray pattern of the fog nozzle?

    A.) Nozzleperson
    B.) Pump operator
    C.) Engine driver
    D.) Hose layer
    Nozzleperson
  12. Where is the air normally added into the foam solution to finish making it?

    A.) In the hoseline
    B.) At the nozzle
    C.) In the eductor
    D.) At the pump
    At the nozzle
  13. What determines the friction loss within the hoseline?

    A.) Source of the water
    B.) Temperature of the water
    C.) Speed of the water
    D.) Pressure of the water
    Speed of the water
  14. How much water can the medium-diameter handline flow?

    A.) 235 to 375 gpm
    B.) 145 to 300 gpm
    C.) 165 to 325 gpm
    D.) 275 to 465 gpm
    165 to 325 gpm
  15. With which class of foam is the compressed air foam system used?

    A.) Class B
    B.) Class C
    C.) Class A
    D.) Class D
    Class A
  16. Which element does NOT affect the fire stream?

    A.) Hose
    B.) Water
    C.) Pump
    D.) Coupling
    Coupling
  17. Which type of foam is used to full up entire areas such as mine shafts or buildings?

    A.) Detergent-type foam
    B.) Alcohol-resistant foam
    C.) Film-forming foam
    D.) Protein foam
    Detergent-type foam
  18. At what angle is the maximum horizontal reach achieved?

    A.) 65 degrees
    B.) 32 degrees
    C.) 28 degrees
    D.) 70 degrees
    32 degrees
  19. Which characteristic is available with aqueous filmforming foam?

    A.) Faster knockdown time
    B.) Increased heat resistance
    C.) Higher vapor suppression
    D.) Greater fuel tolerance
    Faster knockdown time
  20. What must the straight stream pass around in the fog nozzle that causes air to be introduced into the stream?

    A.) Baffle
    B.) Liner
    C.) Cartridge
    D.) Spring
    Baffle
  21. Which type of eductor is always piped through the venturi?

    A.) On-demand
    B.) Around-the-pump
    C.) Bypass
    D.) In-line
    In-line
  22. What size fog nozzle moves more air than a 24-inch smoke ejector?

    A.) 1 1/2-inch
    B.) 2-inch
    C.) 1-inch
    D.) 2 1/2-inch
    2 1/2-inch
  23. How many flow choices does the nozzleperson have to chose from with the selectable gallonage nozzle?

    A.) 4 or 5
    B.) 2 or 3
    C.) 3 or 4
    D.) 1 or 2
     2 or 3
  24. At what pressure (psi) have fog nozzles traditionally operated?

    A.) 50
    B.) 75
    C.) 100
    D.) 125
    100
  25. What must be added to the foam mixture to complete the process?

    A.) Concentrate
    B.) Water
    C.) Fuel
    D.) Air
    Air
  26. How many times its volume does water expand when converted to steam?

    A.) 1,700 to 1,800
    B.) 1,200 to 1,300
    C.) 1,600 to 1,700
    D.) 1,400 to 1,500
    1,600 to 1,700
  27. Which measures the pressure at the bottom of a column of water in feet?

    A.) Gauge
    B.) Vacuum
    C.) Head
    D.) Velocity
    Head
  28. What size fog nozzle moves more air than a 14-inch smoke ejector?

    A.) 1/2-inch
    B.) Booster line
    C.) 1-inch
    D.) 1 1/2-inch
    1 1/2-inch
  29. About how far can the straight master stream reach?

    A.) 70 feet
    B.) 100 feet
    C.) 140 feet
    D.) 200 feet
    100 feet
  30. Which NFPA standard has recommended application rates for foam?

    A.) 15
    B.) 17
    C.) 13
    D.) 11
    11
  31. What is a quick fireground formula for calculating the nozzle reaction of a fog nozzle operating with a nozzle pressure of 100 psi?

    A.) It is one-fourth the gpm
    B.) It is one-eighth the gpm
    C.) It is one-third the gpm
    D.) It is one-half the gpm
    It is one-half the gpm
  32. What is the maximum air to solution ratio of low expansion foam?

    A.) 200:1
    B.) 2,000:1
    C.) 20:1
    D.) 1,000:1
    20:1
  33. How many firefighters are required to operate a hose line that is flowing 100 gpm?

    A.) 1
    B.) 2
    C.) 4
    D.) 3
    1
  34. Which type of nozzle do many firefighters consider more effective?

    A.) Solid tip
    B.) Smooth bore
    C.) Solid stream
    D.) Fog
    Fog
  35. How many firefighters are needed to operate master streams that can flow over 350 gpm?

    A.) 2
    B.) 4
    C.) 1
    D.) 3
     1
  36. What is the major natural factor affecting fire stream?

    A.) Wind
    B.) Rain
    C.) Snow
    D.) Gravity
    Wind
  37. Which is an advantage of the solid stream?

    A.) Increased fog protection when working close to the fire
    B.) Good penetration into burning piles of materials
    C.) Amount of volume control
    D.) Lower nozzle reaction at the same pressure as a fog nozzle
    Good penetration into burning piles of materials
  38. What is the extinguishing agent that leaves the nozzle and flows toward its target?

    A.) Smoke stream
    B.) Agent stream
    C.) Fire stream
    D.) Nozzle stream
    Fire stream
  39. How many spray nozzles does the cellar nozzle have?

    A.) 8
    B.) 4
    C.) 10
    D.) 6
    4
  40. What is the upper limit of the air to solution ratio of high expansion foam?

    A.) 3,000:1
    B.) 2,000:1
    C.) 1,000:1
    D.) 4,000:1
    1,000:1
  41. What is the nozzle pressure (psi) of the fog masterstream?

    A.) 50
    B.) 75
    C.) 100
    D.) 80
    100
  42. Which is the flow from all outlets from the pump or the total gallons per minute?

    A.) Available flow
    B.) Needed flow
    C.) Required flow
    D.) Discharge flow
    Discharge flow
  43. How much elevation pressure is accounted for per floor when pumping water up or down in a building?

    A.) 15 psi
    B.) 20 psi
    C.) 10 psi
    D.) 5 psi
    5 psi
  44. Which is a more common position used to operate a hoseline?

    A.) Sitting
    B.) Standing
    C.) Lying
    D.) Crouching
    Crouching
  45. Where should the smaller sized solid nozzle tips be kept to facilitate firefighting operation?

    A.) Apparatus equipment bay
    B.) Firefighter's pocket
    C.) Inside the fire station
    D.) Over the larger tips
    Firefighter's pocket
  46. What pattern is NOT used when applying water during a combination attack?

    A.) Circular
    B.) Z
    C.) Triangular
    D.) T
    Triangular
  47. What is the constant in the formula to calculate nozzle reaction of the smooth bore nozzle?

    A.) 1.61
    B.) 1.63
    C.) 1.59
    D.) 1.57
     1.57
  48. Which type of fog nozzle shutoff is the most common?

    A.) Pulley-type
    B.) Rotating valve
    C.) Ball valve
    D.) Lever-type
    Lever-type
  49. What is the leading cause of poor fire streams?

    A.) Improper attack method calculation
    B.) Improper hydraulic calculation
    C.) Improper hose diameter selection
    D.) Improper nozzle tip selection
    Improper hydraulic calculation
  50. How many typical rooms of fire can the small-diameter handline extinguish?

    A.) 4 to 6
    B.) 2 to 4
    C.) 3 to 5
    D.) 1 to 3
    1 to 3
  51. What should the water curtain nozzle be directed onto?

    A.) The fire itself
    B.) Outside window
    C.) Object being protected
    D.) Ceiling above the fire
    Object being protected
  52. Who adjusts the flow of the automatic or constant pressure nozzle?

    A.) Engine driver
    B.) Nozzleman
    C.) Hose layer
    D.) Pump operator
    Pump operator
  53. Which class foam is being used to protect homes in urban interface areas during wildfires?

    A.) Class A
    B.) Class D
    C.) Class B
    D.) Class C
    Class A

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