Hydraulics Section

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Author:
koollyT
ID:
257097
Filename:
Hydraulics Section
Updated:
2014-01-17 15:49:59
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2014 engineer exam
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Hydraulics Section
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  1. Nozzle Pressure (NP) + Total Friction Loss (TFL) =
    Pump presure
  2. The Friction Loss Rate (FLR) of fire hose can be determined by the formula
    FLR = 2Q2. In this formula, Q = _______.
    3)
    gpm/100
  3. List in order of importance, the facts that a pump operator needs in order to determine Pump Pressure (PP):
    • Nozzle pressure
    • Gpm Flow or tip size
    • size of hose
    • length of hose
    • elevation +/ -
    • appliance loss
    • sprinkler system loss or stand pipe loss
  4. The Nozzle Pressure for a hand line with a smooth bore tip is _______.
    50 psi
  5. The Nozzle Pressure for deluge sets, monitor nozzles or a water tower equipped with a smooth bore tip is ______.
    80psi
  6. The Nozzle Pressure for all adjustable or fog nozzles is ______.
    100psi
  7. The Nozzle Pressure for foam application is ______.
    100psi
  8. When pumping to a hose line used for an interior attack and the gpm setting is not known, you should use ______ as your maximum gpm flow.
    150gpm
  9. When pumping to a hose line used for an exterior attack and the gpm setting is not known, you should use ______ as your maximum gpm flow.
    200gpm
  10. When the gpm setting and use of the attack line are both unknown, you should pump to the ________ for that nozzle.
    the highest gpm flow
  11. The formula 30d2√NP is used to calculate ________________.
    gpm flow
  12. 12) The square root used for calculating the gpm of a hand held straight tip is _____ and that number is based on _____ psi.
    7 at 50 psi hand line
  13. The square root used for calculating the gpm of a straight tip used on a hose control or monitor is ____ and that number is based on _____ psi.
    9 at 80psi
  14. 14) GPM flows for handheld smooth bore tip ¼" to 3/8" are rounded to the nearest ____ gpm.
    1gpm
  15. GPM flows for handheld smooth bore tips ½" to 1 1/8" are rounded to the nearest ___ gpm.
    10gpm
  16. GPM flows for smooth bore tips used on appliances 1 ¼" to 2" are rounded to the nearest _____ gpm.
    100gpm
  17. With a given flow through fire hose the smaller the diameter of the hose, the _____ amount of friction loss.
    greater amount of friction loss
  18. 18) The maximum Pump Pressure for synthetic double jacket fire hose (attack line) is ______ psi
    300psi
  19. The maximum Pump Pressure for 2 ½" high pressure double jacket fire hose is _____ psi.
    600psi
  20. The Equivalent Flow (EF) conversion for ¾" hose is ____;
    25
  21. The Equivalent Flow (EF) conversion for 1"hose ?
    9
  22. The Equivalent Flow (EF) conversion for 1 1/2"hose?
    3.6
  23. The Equivalent Flow (EF) conversion for 1 3/4" hose?
    2
  24. The Equivalent Flow (EF) conversion for 3" hose is?
    .67
  25. The Equivalent Flow (EF) conversion for 3 1/2" hose ?
    .4
  26. The Equivalent Flow (EF) conversion for 4" hose?
    .25
  27. After the EF is calculated, it should be rounded off to the nearest _______.
    10gpm
  28. Length (L) is calculated by dividing the total length of hose in the lay by______
    100
  29. Water weighs _____ per gallon
    8.35ponds per gallon
  30. Water weighs _8.35____ per gallon and requires _____ psi to raise this amount 1 foot?
    .434 or .5
  31. The number used to calculate Gravity Gain or Gravity Loss on the fire ground is ___ psi.
    .5psi
  32. Gravity Gain (GG) is ___________ from the Pump Pressure
    SUBTRACT pressure
  33. Gravity Loss (GL) is ___________ to pump pressure?
    ADD pump pressure
  34. The initial Pump Pressure for all hand lines is _______ + ________?
    NOZZLE PRESSURE +GL OR - GG
  35. The initial Pump Pressure for elevated master streams is _________ psi.
    150PSI
  36. The initial Pump Pressure for Sprinkler and Standpipe Systems is ________ psi
    150 PSI
  37. Convert the following fractions into decimals
    ¼ =______
    .25
  38. Convert the following fractions into decimals

    ¾ = ______
    0.75
  39. 1/8 = ______
    0.125
  40. Convert the following fractions into decimals
    3/8 = ______
    0.375
  41. Convert the following fractions into decimals
    5/8 = ______
    0.625
  42. Convert the following fractions into decimals
    7/8 = ______
    0.875
  43. Convert the following fractions into decimals
    :1 1/8 = ___
    1.125
  44. Convert the following fractions into decimals
    1 3/8 = ___
    1.375
  45. Solve the following problems

    30 x 1 3/8 = ______
    41.25
  46. Solve the following problems

    30 x 1 ¼ x 7 = ____
    262.5
  47. Solve the following problems
    30 x 1 ½ x 9 =______
    405
  48. Solve the following problems

    30 x 1 ¾ x 9 = _______
    472.5
  49. Solve the following problems

    210 x .67 = ______
    140.7
  50. Solve the following problems

    600 x .4 = ______
    240
  51. Solve the following problems

    1100 x .5 = ______
    550
  52. Solve the following problems

    30 x 3.6= ______
    108

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