Pumping Ch. 10-13

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atababy
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168914
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Pumping Ch. 10-13
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2012-10-05 14:15:31
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Pumping
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Pumping Chapters 10-13
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  1.                    pumps- Used for priming and drafting. Can Pump Air. Early fire pumps used this method (rotary, single/double action.)
    Positive Displacement Pumps- Used for priming and drafting. Can Pump Air. Early fire pumps used this method (rotary, single/double action.)
  2.                     Pump - Modern Fire Pump. Does not use positive action to force water from the pump.
    Centrifugal Pump - Modern Fire Pump. Does not use positive action to force water from the pump.
  3.                         Pump - One of the most common pumps used as a primer for Cent Pumps.  Constructed with movable elements that automatically compensate for wear and maintain a tighter fit with closer clearances as the pump is used.
    Rotary Vane Pump - One of the most common pumps used as a primer for Cent Pumps.  Constructed with movable elements that automatically compensate for wear and maintain a tighter fit with closer clearances as the pump is used.
  4. Centrifugal Pump - Non-positive Displacement, it imparts   
             
    to the water and converts it to                within the pump itself. 
    Centrifugal Pump Non-positive Displacement, it imparts Velocity to the water and converts it to Pressure within the pump itself. 
  5. Fundamentally, the Centrifugal Pump consists of 2 parts:
    The                     and the                     .
    • Fundamentally, the Centrifugal Pump consists of 2 parts:
    • The Impeller and the Casing
  6.           - Collects water and confines it in order to convert velocity into pressure *Velocity into pressure
    Casing - Collects water and confines it in order to convert velocity into pressure *Velocity into pressure
  7. The              is a water passage that gradually increases in cross-sectional area as it nears the discharge outlet of the pump. 
    The Volute is a water passage that gradually increases in cross-sectional area as it nears the discharge outlet of the pump. *The Volute opens into the Casing, which allows the casing to create pressure. 
  8. Because the Impeller turns at a high rate of speed, a              thrust is developed as the water is delivered to the discharge outlet. Water being removed at 2 places and traveling in opposite directions cancels the            thrust. 
    Because the Impeller turns at a high rate of speed, a Radial Thrust is developed as the water is delivered to the discharge outlet. Water being removed at 2 places and traveling in opposite directions cancels the Radial Thrust
  9. In a Multi-Stage Centrifugal pump, the process of switching between Pressure mode and Series Mode is called                     
    In a Multi-Stage Centrifugal pump, the process of switching between Pressure mode and Series Mode is called Changeover
  10. Most FD's specify the Transfer Valve stay in the Pressure position until more than         the rated capacity of the pump is necessary. 
    Newer pumps can perform Changeover at           the rated capacity of the pump. 
    • Most FD's specify the Transfer Valve stay in the Pressure position until more than 1/2 the rated capacity of the pump is necessary. 
    • Newer pumps can perform Changeover at 2/3 the rated capacity of the pump. 
  11. The maximum NPDP that the transfer valve should be operated at during Changeover is      PSI. 
    The maximum NPDP that the transfer valve should be operated at during Changeover is 50 PSI
  12. The most common type of            is a material made of rope fibers impregnated with graphite or lead. 
    The most common type of Packing is a material made of rope fibers impregnated with graphite or lead. 
  13. As packing rings wear with the operation of the shaft, the         
            
    can be tightened and the leak controlled. 
    As packing rings wear with the operation of the shaft, the Packing Gland can be tightened and the leak controlled. 
  14. The                   (spacer) is supplied with the packing to provide Cooling and Lubrication
    The Lantern Ring (spacer) is supplied with the packing to provide Cooling and Lubrication
  15. If the pump is equipped with                      instead of packings, they will not drip and require adjustment
    If the pump is equipped with Mechanical Seals instead of packings, they will not drip and require adjustment. 
  16. With the engine idling and the pump engaged, the speedometer will read between      -       MPH.
    With the engine idling and the pump engaged, the speedometer will read between 10-15 MPH.
  17. Pumps and the piping system must withstand a        PSI hydrostatic test before being placed into service.
    Pumps and the piping system must withstand a 500 PSI hydrostatic test before being placed into service.
  18. NFPA 1901 states that piping should be sized so that pumpers with a capacity of 500GPM or less should be able to provide      GPM from the booster tank. Pumpers that provide 500GPM or more should be able to provide      GPM from the onboard booster tank. 
    NFPA 1901 states that piping should be sized so that pumpers with a capacity of 500GPM or less should be able to provide 250GPM from the booster tank. Pumpers that provide 500GPM or more should be able to provide 500GPM from the onboard booster tank. 
  19. Many pumpers today are equipped with tank-to-pump lines as large as       inches in diameter.
    Many pumpers today are equipped with tank-to-pump lines as large as 4 inches in diameter.
  20. According to NFPA 1901, enough 2 1/2" or larger discharge outlets must be provided in order to flow the            
                               
    According to NFPA 1901, enough 2 1/2" or larger discharge outlets must be provided in order to flow the Rated Capacity of the Pump
  21. Pumps rated greater than 750 GPM are required to have 2-   
       
     inch discharges, while pumps rated less than 750 gpm are only required to have 1-        inch discharge. 
    Pumps rated greater than 750 GPM are required to have 2-2 1/2 inch discharges, while pumps rated less than 750 gpm are only required to have 1- 2 1/2 inch discharge
  22. Discharges 1 1/2 inches or larger must be supplied by       inch piping. 
    Discharges 1 1/2 inches or larger must be supplied by 2 inch piping. 
  23. All valves should be designed so they are easily operable at pressures up to        PSI. 
    All valves should be designed so they are easily operable at pressures up to 250 PSI
  24. NFPA 1901 requires that apparatus with a water tank that is less than 1,000 gallons have a tank fill line that is       inch in diameter. Apparatus with a tank larger than 1000 gallons must have a       inch tank fill line. 
    NFPA 1901 requires that apparatus with a water tank that is less than 1,000 gallons have a tank fill line that is 1 inch in diameter. Apparatus with a tank larger than 1,000 gallons must have a 2 inch tank fill line
  25. Booster Line Cooling Valve - aka -                 Valve -  serves the same function as the Circulator valve by diverting a portion of the discharge water into the Tank. This is done using Small Copper Tubing, flow is 10 - 20 GPM. 
    Booster Line Cooling Valve - aka - Bypass Valve -  serves the same function as the Circulator valve by diverting a portion of the discharge water into the Tank. This is done using Small Copper Tubing, flow is 10 - 20 GPM
  26. The                     valve is the most common type of valve. It permits full-flow with minimal friction loss. The most common actuators are                                aka                       , or Quarter-turn handles. 
    The Ball-Type Valve is the most common type of valve. It permits full-flow with minimal friction loss. The most common actuators are Push-Pull Handles aka T-Handles, or Quarter-turn handles
  27. Gate Valve - Used on LDH intakes and discharges, commonly operated by                . May be electric, pneumatic or hydraulic. 
    Gate Valve - Used on LDH intakes and discharges, commonly operated by HandWheel . May be electric, pneumatic or hydraulic. 
  28. Butterfly Valve - Used on LDH intakes and discharges, commonly operated by                           handles. May be pneumatic, hydraulic or electric. 
    Butterfly Valve - Used on LDH intakes and discharges, commonly operated by Quarter-Turn handles. May be pneumatic, hydraulic or electric. 
  29. NFPA 1901 requires that all valves on intakes and discharges that are      inch or greater to be equipped with Slow Acting Valve Controls. This prevents going from fully opened to fully closed in less than       seconds. 
    NFPA 1901 requires that all valves on intakes and discharges that are 3 inch or greater to be equipped with Slow Acting Valve Controls. This prevents going from fully opened to fully closed in less than 3 seconds
  30. NFPA 1901 requires some type of pressure control device to be part of any fire apparatus pumping system. The device must operate within       to            seconds and must not allow the pressure to exceed            PSI above the selected level. 
    NFPA 1901 requires some type of pressure control device to be part of any fire apparatus pumping system. The device must operate within 3 to 10 seconds and must not allow the pressure to exceed 30 PSI above the selected level. 
  31. It is generally recommended that Intake Relief Valves be set to open when the pressure rises more than       PSI above the desired pressure. Most external screw-on intake pressure relief valves are equipped with a manual shut off valve that allows the water to the pump to be stopped. 
    It is generally recommended that Intake Relief Valves be set to open when the pressure rises more than 10 PSI above the desired pressure. Most external screw-on intake pressure relief valves are equipped with a manual shut off valve that allows the water to the pump to be stopped. 
  32. Newer apparatus may be equipped with an Electronic Governor. These use a pressure sensing element known as a Pressure                 that is conected to the discharge manifold. The Pressure                will automatically maintain pressure above 50 PSI, drop to idle below 50 PSI and initiates cavitation protection mode below          PSI. 
    Newer apparatus may be equipped with an Electronic Governor. These use a pressure sensing element known as a Pressure Transducer that is conected to the discharge manifold. The Pressure Transducer will automatically maintain pressure above 50 PSI, drop to idle below 50 PSI and initiates cavitation protection mode below 30 PSI
  33. Most modern fire apparatus use                              Primers. Primers should be operated between              and             rpm's. Proper operation requires activating the Primer, and increasing engine rpm's to            to           .
    Most modern fire apparatus use Positive Displacement Primers. Primers should be operated between 1,000 and 1,200 rpm's. Proper operation requires activating the Primer, and increasing engine rpm's to a range of 1,000 to 1,200.
  34. The Master Intake Gauge is also known as the                or 
                   Gauge. This gauge should read from -30mm of Mercury to 600PSI. 
    The Master Intake Gauge is also known as the Vacuum or Compound Gauge. This gauge should read from -30mm of Mercury to 600PSI. 
  35. The Throttle Knob is also known as the                 .
    The Throttle Knob is also known as the Vernier.
  36. The best way to check the water supply is to                          .
    The best way to check the water supply is to Look into the Tank
  37.                          - primary function is to control the temperature of the coolant in the apparatus engine during pumping. 
    Auxiliary Coolers - primary function is to control the temperature of the coolant in the apparatus engine during pumping. 
  38. Drivers have 3 water sources to choose from:                 
                     , and                        
    Drivers have 3 water sources to choose from: Onboard, Pressurized and Static
  39. Once the D/O exits the cab, the next step, in all cases except during pump and roll operations is to                                  
    Once the D/O exits the cab, the next step, in all cases except during pump and roll operations is to Chock The Wheels.
  40. Tests have indicated that the apparatus may override the parking brake system at engine speeds as low as            RPM's. 
    Tests have indicated that the apparatus may override the parking brake system at engine speeds as low as 1,300 RPM's. 
  41. Most D/O's operate solely from                              at the vast majority of incidents. 
    Most D/O's operate solely from the Onboard Water Tank at the vast majority of incidents. 
  42. When putting a multistage pump into operation, the Transfer valve should be in the                      position until 50% of the rated capacity of the pump is needed. Some manufacturers recommend staying in the                     position until 70% of the volume of the pump is needed. 
    When putting a multistage pump into operation, the Transfer valve should be in the Series (pressure) position until 50% of the rated capacity of the pump is needed. Some manufacturers recommend staying in the Series (pressure) position until 70% of the volume of the pump is needed. 
  43. To avoid possible damage to the water system, do not allow the incoming water pressure from a hydrant to drop below
             PSI. In rare instances, you may go below        PSI, but never allow the intake to drop below        
    To avoid possible damage to the water system, do not allow the incoming water pressure from a hydrant to drop below 20 PSI. In rare instances, you may go below 20 PSI, but never allow the intake to drop below ZERO
  44. The Best Hydrants are found on                 grid patterns.
    The Worst Hydrants are Single Main,                Hydrants. 
    • The Best Hydrants are found on Interconnected Grid patterns.
    • The Worst Hydrants are Single Main, Dead-End Hydrants
  45. When using 2 1/2" or 3" hoselines to supply the pumper directly off the hydrant pressure, it is recommended the lines be no longer than          feet. 
    When using 2 1/2" or 3" hoselines to supply the pumper directly off the hydrant pressure, it is recommended the lines be no longer than 300 feet
  46. Reverse Lay - Fire to water source,          coupling comes off first. Best for drafting and supplementing hydrant pressure. Used when the first arriving pumper must                
                        
    Reverse Lay - Fire to water source, MALE coupling comes off first. Best for drafting and supplementing hydrant pressure. Used when the first arriving pumper must Work Alone for an Extended Period of Time. 
  47. When opening a fire hydrant, open the hydrant all the way then close the hydrant       turn to relieve strain on the valve stem and internal components. 
    When opening a fire hydrant, open the hydrant all the way then close the hydrant 1/4 turn to relieve strain on the valve stem and internal components. 
  48. When a pumper is connected to a hydrant and is not discharging water, the pressure shown on the intake gauge is the            pressure. When the pumper is discharging water the intake gauge is the              pressure. 
    When a pumper is connected to a hydrant and is not discharging water, the pressure shown on the intake gauge is the Static Pressure. When the pumper is discharging water the intake gauge is the Residual Pressure
  49. Atmospheric Pressure at sea level is         PSI. Pressure decreases        PSI for every 1,000 feet of elevation gained. 
    Atmospheric Pressure at sea level is 14.7 PSI. Pressure decreases 0.5 PSI for every 1,000 feet of elevation gained. 
  50. The maximum amount of vacuum that most fire pumps can develop is      " of Mercury. 
    The maximum amount of vacuum that most fire pumps can develop is 22" of Mercury
  51. 1 Foot of lift =         inches of Mercury
    Max Theoretical Lift =             feet
    Required vacuum for a primer =         inches of Mercury
    • 1 Foot of lift = .885 inches of Mercury
    • Max Theoretical Lift = 33.8 feet
    • Required vacuum for a primer = 22 inches of Mercury
  52. The first consideration for Drafting is                                 
    The first consideration for Drafting is Site Selection (amount of water, type of water, accessibility of water)
  53. The most important factor in Draft Site Selection is the           
                 

    The most important factor in Draft Site Selection is the Amount of Water Available
  54.       feet of water is recommended to be kept around a barrel strainer at all times. 
    2 feet of water is recommended to be kept around a barrel strainer at all times. 
  55. Low level strainers can draft to a depth of       inches. 
    Low Level Strainers can draft to a depth of 2 inches
  56. The most common and most damaging type of contamination in drafting water is                        water. Sulfur water is common in the vicinity of                  
    The most common and most damaging type of contamination in drafting water is Dirty or Sandy water. Sulfur Water is common in the vicinity of Coal Mines
  57. All fire pumps meeting NFPA and UL requirements are rated to pump their capacity at       feet of lift through        feet of intake hose. 
    All fire pumps meeting NFPA and UL requirements are rated to pump their capacity at 10 feet of lift through 20 feet of intake hose
  58. A good pumper can lift water approximately       or        feet. 
    A good pumper can lift water approximately 23 or 24 feet
  59. For effective operation, the max lift considered reasonable for most pumpers is about       feet. At       feet of lift, the amount of water that can be supplied is only about 60% of the rated capacity of the pump. 
    For effective operation, the max lift considered reasonable for most pumpers is about 20 feet. At 20 feet of lift, the amount of water that can be supplied is only about 60% of the rated capacity of the pump. 
  60. Pump Capacity ratings are based on       feet of lift.
    Pump Capacity ratings are based on 10 feet of lift.
  61. 2 stage pumps should be set in the                     mode during drafting. 
    2 stage pumps should be set in the Parallel (Volume) mode during drafting. 
  62. The entire priming action typically takes between           seconds from start to finish. If a prime has not been achieved in       seconds, stop and check for problems. The most common problem is an Air Leak (open drains and valves)
    The entire priming action typically takes between 10 - 15 seconds from start to finish. If a prime has not been achieved in 30 seconds, stop and check for problems. The most common problem is an Air Leak (open drains and valves)
  63. After the pump has been successfully primed, increase the throttle until pressure reads             PSI, when opening discharges do not let the pressure drop below       PSI. 
    After the pump has been successfully primed, increase the throttle until pressure reads 50 - 100 PSI, when opening discharges do not let the pressure drop below 50 PSI
  64. The most common problem while operating from a draft is 
                                              
    The most common problem while operating from a draft is Air Leaks on the Intake Side of the Pump
  65. Blockages typically develop at the           , after the pump has been operating satisfactorily for a period of time. 
    Blockages typically develop at the Strainer , after the pump has been operating satisfactorily for a period of time. 
  66. After a drafting operation, run the primer until                    comes out of the priming pump. This lubricates and preserves the primer parts. 
    After a drafting operation, run the primer until Primer Fluid or Oil comes out of the priming pump. This lubricates and preserves the primer parts. 
  67. When connecting to a sprinkler/standpipe, if there is any indication of an actual fire, a minimum of     " to       " hoselines should be connected to the FDC. 
    When connecting to a sprinkler/standpipe, if there is any indication of an actual fire, a minimum of  2" to 2 1/2" hoselines should be connected to the FDC. 
  68. It is a general rule of thumb that 1 - 1,000 GPM pumper can supply the FDC for every       sprinklers that are estimated to be flowing. 
    It is a general rule of thumb that 1 - 1,000 GPM pumper can supply the FDC for every 50 sprinklers that are estimated to be flowing. 
  69. A general rule of thumb pressure for pumping a sprinkler FDC         PSI.
    A general rule of thumb pressure for pumping a sprinkler FDC 150 PSI.
  70. At sea level, a pump can theoretically lift water          feet. 
    At sea level, a pump can theoretically lift water 33.8 feet. 
  71.                - The Max Height any amount of water may be raised through hard intake hose. In most circumstances,                        is no more than 25 feet
    Maximum Lift - The Max Height any amount of water may be raised through hard intake hose. In most circumstances Maximum Lift is no more than 25 feet
  72.                    - Height water may be lifted in sufficient quantity to provide a reliable flow. Every fire pump should have a                  of 14.7 feet. 
    Dependable Lift - Height water may be lifted in sufficient quantity to provide a reliable flow. Every fire pump should have a Dependable Lift of 14.7 feet
  73. All Fire Department pumpers are rated to draft from a height of       feet, through       feet of intake hose. 
    All Fire Department pumpers are rated to draft from a height of 10 feet, through 20 feet of intake hose
  74. When evaluating a natural static water supply source, there are 2 primary factors that must be considered:                   
                    .
    When evaluating a natural static water supply source, there are 2 primary factors that must be considered: Adequacy and Accessibility
  75. The rule of thumb for evaulating a pond or small lake, is that for every          of depth, for an area of one         , provides 
              GPM for 5 hours. 
    The rule of thumb for evaulating a pond or small lake, is that for every 1 Foot of depth, for an area of One Acre, provides 1,000 GPM for 5 hours
  76. 2 common causes for ground thawing are:                      
    and                                              .
    2 common causes for ground thawing are: Heat from the vehicle's exhaust and Warm water spilling onto the ground
  77. Low Level Strainers can draft water to a depth of     -    inches. 
    Low Level Strainers can draft water to a depth of 1 -2 inches
  78. Floating Strainers allow safe drafting to a depth of           
    Floating Strainers allow safe drafting to a depth of 1 Foot. 
  79. The Source Pumper (aka -           Pumper) - is the first pumper in a relay and should have the                                 
    of the pumpers in the realy. 
    The Source Pumper (aka - Supply Pumper) - is the first pumper in a relay and should have the Largest Pumping Capacity of the pumpers in the realy. 
  80. Hose Tenders can carry a        or more of LDH
    Hose Tenders can carry a Mile or more of LDH
  81. Intake Pressure Relief Valves - (aka        Relief Valves) - Should be set to          PSI over the static water pressure from the hydrant, or          PSI over the discharge pressure of the previous pumper in the relay. *There are 2 types of these devices: external add-on, and manifold relief valves provided by manufacturer
    Intake Pressure Relief Valves - (aka Relay Relief Valves) - Should be set to 10 PSI over the static water pressure from the hydrant, or 10 PSI over the discharge pressure of the previous pumper in the relay. *There are 2 types of these devices: external add-on, and manifold relief valves provided by manufacturer
  82. If an LDH Relay Pumping operation is intended to support more than one attack pumper at the fire scene, a                  
                 
    may be used to break down the LDH into 2 or more hoselines that may be then connected to the attack pumpers. 
    If an LDH Relay Pumping operation is intended to support more than one attack pumper at the fire scene, a Discharge Manifold may be used to break down the LDH into 2 or more hoselines that may be then connected to the attack pumpers. 
  83. All FD pumpers are rated to pump their Max Volume Capacity at a NPDP of         PSI at a draft. 
    All FD pumpers are rated to pump their Max Volume Capacity at a NPDP of 150 PSI at a draft. 
  84. When pumping max rated capacity from a static water source, if the pump operates at a pressure higher than       PSI, the volume capability of the pumper is reduced proportionally. 
    When pumping max rated capacity from a static water source, if the pump operates at a pressure higher than 150 PSI, the volume capability of the pumper is reduced proportionally. 
  85. All FD pumpers are rated to flow their Max Volume at 150 PSI, 70% of max volume at      PSI, and 50% of max volume at        PSI.
    All FD pumpers are rated to flow their Max Volume at 150 PSI, 70% of max volume at 200 PSI, and 50% of max volume at 250 PSI.
  86. The Constant Pressure Relay Method - provides the Maximum flow available for a relay by using the constant pressure of      PSI.
    Advantages inclue: quick activation, no calculations, reduced communication
    • The Constant Pressure Relay Method - provides the Maximum flow available for a relay by using the constant pressure of 175 PSI.
    •  Advantages inclue: quick activation, no calculations, reduced communication
  87. When operating a Constant Pressure Relay using the newest pressure governors, the attack pumper should be in "         " mode, while all others in the relay should be in "        " mode. 
    When operating a Constant Pressure Relay using the newest pressure governors, the Attack Pumper should be in "PRESSURE" mode, while all others in the relay should be in "RPM" mode. 
  88. In a relay, if the attack pumper is equipped with a readily adjustible intake relief valve, set it between       and        PSI. 
    In a relay, if the attack pumper is equipped with a readily adjustible intake relief valve, set it between 50 and 75 PSI

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