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  1. #101
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    These ones I know off the top of my head. Iíll have to go look up those others.


    What is K class extinguishers?
    Kitchen use- usually found in commercial kitchens where deep fat fryers are found. Also known as wet chemical and the agent is now being used to replace purple K in hood systems.

    What is an Isomer? a
    A hydrocarbon with same element makeup but different structural arrangement.

    Whats a Higbee cut?
    The notches on the coupling lugs used to line up the threads.

    Whats the difference between a pre action and a dry pipe system?
    A dry pipe system has closed heads and is filled with compressed air to keep a clapper valve closed, keeping water out of the pipes until a head activates.
    A pre-action is the same but also contains a second valve. This second valve operates when it is activated by the alarm system or other device. This is basically a deluge system but with closed heads.


    NFPA 101 refers to what?
    Life safety code.

    What do piano's have to with sprinklers?
    The owner of a piano place (canít remember if it was a store or a factory) soldered caps on pieces of pipe connected to a water source. The result was the first fire sprinkler.
    Last edited by ffexpCP; 12-03-2004 at 07:04 PM.

  2. #102
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    Originally posted by Firefighter1219
    6) Since everyone doesn't have the same ten codes, please don't use them. I know what 10-8 is (in service). Yes you make sure it is in service, but how do you do that?
    Flush it!

    Not only does it confirm it will spit out water, but it will help prevent some scale, peices of water main, rocks and other junk from entering your pump.

    Orange juice anyone?

  3. #103
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    Sry bout the 10 code. justa force of habit. As for # 5, I am asking, but with an educated guess
    AJ, MICP, FireMedic
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  4. #104
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    Whats the equation for Friction loss?
    ~Leather Forever~
    ~Real women fight fires, the others just stand around, get in the way and don't do crap.~

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    A pumper-tanker is a truck that has a pump that can pump at a greater capacity than the booster tank can hold. Example: 2150 gpm pump, 2000 gallon tank.

    A tanker-pumper is a truck that has a pump that cannot pump at a greater capacity than the booster tank can hold. Example: 1750 gpm pump, 2000 gallon tank.
    -Bozz

    Air Force Medic

  6. #106
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    Originally posted by IrishGrl329
    Whats the equation for Friction loss?
    PDP=NP+FL+EL-EG+AL

    FL=C(Q^2)L

    C= coefficient of hose used, examples: 2.5Ē=2, 3Ē=.8

    Q= quantity of water flowing in gpm/100.

    L= Length of hose/100.

    I guess I actually learned something this semester!

  7. #107
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    Default Pressure Loss due to friction....

    Pf= [(4.52)(Q)^1.85(L)] / [(C)^1.85 (D)^4.87]

    Q=Flow, gpm
    L=Length
    C=Coefficient of Roughness
    D=Diameter (actual, not nominal), inches

    Hazen-Williams Formula
    Last edited by OSUFire1; 12-04-2004 at 01:59 AM.

  8. #108
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    Flush it!

    Not only does it confirm it will spit out water, but it will help prevent some scale, peices of water main, rocks and other junk from entering your pump.
    Correct. It will also help remove debris that arsonists have placed into the hydrant. For example: arsonists have been found to place ball-bearings into hydrants so that when you hook in without flushing it, the ball bearings will go straight into your pump. That is if you don't have screens on your intake valves.

    Your pump will be destroyed, because the impellers are made of bronze, and your truck will be out service. No more fire supression activities can take place until the secong due arrives.

    BLS-Good guess. The team is inside of that room and that is the first place you should search for them.
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  9. #109
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    I want you to use this picture below to answer a few of my questions.
    Use a program like paint to label the picture apprpriately. Make sure you save it as a jpeg, then post it in a reply.

    Where is the steamer?
    Where is the main intake?
    Where is the discarge?


    Separate line of questions. Label the picture again, but independent of the first picture.

    You have 600' of 6" LDH storz supplying the pump in the picture. Where do you hook it to and what do you need to do it?

    The hydrant dies and you have a tanker on scene. The tanker does not have LDH discharge. Where would the tanker hook into this pump?

    There is heavy fire in level 1 of a residential dwelling. You are using a 2.5" attack line, with a reverse lay. Where will you hook the hose up, and what kind of adaptors will you need (if any).

    A 1.75" line is stretched into the attached garage on level 1 to check for extension (forward lay). Where will you hook it up and what type of apaptors will you need (if any).
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  10. #110
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    Where is the steamer?
    Where is the main intake?
    Where is the discarge?


    As labeled in my photo:

    Steamer connection is where I have placed the "A".

    Main Intake is also "A".

    Discharge is labeled as "C". Any connections level or above "C" will generally be a discharge.


    You have 600' of 6" LDH storz supplying the pump in the picture. Where do you hook it to and what do you need to do it?


    Jaffrey Valve (what we use) hooked to the steamer connection. Some other form of slow-close valve is acceptable too.

    The hydrant dies and you have a tanker on scene. The tanker does not have LDH discharge. Where would the tanker hook into this pump?

    Tanker can hook into the 2.5" (might be 3..) Inlet labeled "B"


    There is heavy fire in level 1 of a residential dwelling. You are using a 2.5" attack line, with a reverse lay. Where will you hook the hose up, and what kind of adaptors will you need (if any).


    Can be hooked up to the 2.5" discharge with a female-female coupling. Would need a 2.5" male-male coupling for the nozzle to attach to the hose.

    A 1.75" line is stretched into the attached garage on level 1 to check for extension (forward lay). Where will you hook it up and what type of apaptors will you need (if any).

    The 1.75 can be attached to the 2.5" discharge. The only adapter that is needed is a 2.5" to 1.75" reducer.
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    Quick thought, tanker could also use an adapter to pump a LDH line from a discharge. Hook up to main inlet once again.

  12. #112
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    i do believe that is correct, then again i could be totally wrong, but thats what my answer would be.
    FTM-PTB/Leather Forever

  13. #113
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    A pumper-tanker is a truck that has a pump that can pump at a greater capacity than the booster tank can hold. Example: 2150 gpm pump, 2000 gallon tank.
    No.
    In the strictest sense, a "Pumper-Tanker" is a pumper that carried the full compliment of what a pumper would carry, but has a large tank and can be used as a tanker. A "Tanker-pumper" is a tanker that does not carry what you find on a pumper, but just enough equipment to fill its tanks and it usally has a small pump around 500-1000 GPM. This line has been blurred by alot of departments though.



    What is K class extinguishers?
    Kitchen use- usually found in commercial kitchens where deep fat fryers are found. Also known as wet chemical and the agent is now being used to replace purple K in hood systems
    Good!



    What is an Isomer? a
    A hydrocarbon with same element makeup but different structural arrangement.
    Good!


    Whats the difference between a pre action and a dry pipe system?
    A dry pipe system has closed heads and is filled with compressed air to keep a clapper valve closed, keeping water out of the pipes until a head activates.
    A pre-action is the same but also contains a second valve. This second valve operates when it is activated by the alarm system or other device. This is basically a deluge system but with closed heads.
    Good!

    NFPA 101 refers to what?
    Life safety code.


    What do piano's have to with sprinklers?
    The owner of a piano place (canít remember if it was a store or a factory) soldered caps on pieces of pipe connected to a water source. The result was the first fire sprinkler.
    You on the right track! The mans name was Henry Parlmee. Although he didnt "invent" the concept, he invented and perfected the first practical heads.
    Interesting history side note: Our National Anthem has to do with sprinklers!!!!!!!!!!!!!!
    Sir William Congreve of England also invented a sprinker system in the early 1800's in England. Congeve also invented the Congreve rocket( humble guy huh )which was used on American forces in the assualt at Fort McHenry in the war of 1812. The Brittish were useing congreve rocket against the fort. This what inspired american lawyer Francis Scott Key to pen the line "... and the rockets red glare, the bombs bursting in air gave proof through the night that our flag was still thier"

    Alright guys, good job but answer these.
    What do 1301 and Montreal have in common?

    Who was Peg Leg Sullivan?

    What happend at Happy Land?

    What did Gratacap invent?

    What is the derivative and what is the fuctional group of Methanol Alcohol...CH3OH?

    Revolveing doors and 11/28!
    And I will ask some more.
    Remember the answer may only be a google away!
    I dont suffer from insanity, I enjoy every minute of it.

  14. #114
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    If I am not mistaken, you can discharge, or intake from ANY valve, it is just amatter of knowing if you are taking in, or putting out.
    AJ, MICP, FireMedic
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  15. #115
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    1) My answer for the pumper-tanker/tanker-pumper question would be correct. One of the requirements is that it is capable of high capacities, so a 500 gallon engine with a 750 gpm pump is NOT a pumper-tanker. The VERY FIRST truck of this type is sitting in a museum over near Milwaukee, and I have heard the story of it a few times. A pumper-tanker is, as I said, a truck with a pump with a greater capacity than the tank, and a tanker-pumper is a truck with a larger tank than the pump capacity.

    In order for a tanker to be classified as an engine/pumper (and be compliant), it has to carry the hoselines and other equipment that is required by NFPA.

    2) No, you cannot use an intake as a discharge, or a discharge as an intake. Doing so would be going against the pressure that is created by the pump. The only exception is when the truck is at idle, and the pump is not creating pressure.

    A centrifugal pump works exactly like a supercharger on a car. The intakes go in at the center, and the water is pushed to the discharges, which are on the outside.
    -Bozz

    Air Force Medic

  16. #116
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    OK guys, my two cents worth.

    1. Pumper/tankers are normally apparatus that have a minimum of a 1000 GPM pump and a 1000 gal tank. The dividing line seems to have come from the "big" cities where tanks on the engines were anywhere from 100 to 500 gal. They didn't need more because of an effective hydrant system. The department also found a need for a mobile water supply for incidents whre there were inadequate hydrants (highways, parks, etc). Thre are different definitions for different parts of the country but the above seems to be the most common.

    2. Generally an intake valve is for intake and discharge valves are for discharge. There are exceptions. The 65' squirt unit I used to drive had a 1000 GPM pump. It had two 2.5" intake/discharges at the rear of the truck. You could supply the discharges from the apparatus pump or you could supply the aerial from another engine by using them as intakes. There are valves between the discharge/intakes , the pump and the aerial waterway. You cannot supply the apparatus pump through these discharge/intakes.

    Stay Safe
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    Last edited by Rayr49; 12-05-2004 at 12:00 PM.

  17. #117
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    150 countries agreed in the Montreal Protocol to control the use of all ozone-depleting chemicals, and Halon was one of the first to be considered.

    As a result of Montreal, the following steps were taken to eliminate Halon from common use:

    31 DECEMBER 1993

    The manufacture of Halon is banned. Recycled Halon can be used to recharge systems but all Halon being recycled needs to be tracked to prove its origins.
    Halon retains some commercial value as recycled Halon is a commodity in demand.


    1999 EUROPEAN REGULATION EC/5748

    Formulated a timetable to phase out the use of Halon altogether and to govern the collection and destruction of both Halon 1301 (typically used in fixed systems) and 1211 (found in hand held extinguishers).


    31 DECEMBER 2002

    The last day that existing Halon systems may be recharged with recycled or reclaimed Halon.
    After this date, if a Halon suppression system discharges it is effectively useless. The equipment it is designed to protect will be vulnerable until a new system can be purchased, installed and commissioned.


    31 DECEMBER 2003

    By this date all existing Halon systems must have been decommissioned and the Halon itself must have been disposed of by an approved contractor. Halon portable extinguishers must also be taken out of service by this date. Although Halon systems are still permitted in certain specialist applications (mainly military*) the export of Halon is severely restricted. Halon therefore now has a negative value, requiring certified disposal.

    www.chubb.co.uk


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    Pretty damned good 42. I would have called the 2.5" intake the main intake, but your answer is acceptable.

    Jaffrey Valve (what we use) hooked to the steamer connection. Some other form of slow-close valve is acceptable too.
    Well that takes care of the end that is at the engine, but what about the hydrant? You just burned the house down. You are going to need a storz to standard thread adaptor to hook into the hydrant.

    Another question. You have 1200' of 3" line and you are going to supply the truck with it. The pump has the same setup on both sides. How would you hook into the pump?
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    Originally posted by Firefighter1219
    Pretty damned good 42. I would have called the 2.5" intake the main intake, but your answer is acceptable.
    We use the steamers/Jaffrey valves more then the other intakes, so I consider those our "main" intake.


    Well that takes care of the end that is at the engine, but what about the hydrant? You just burned the house down. You are going to need a storz to standard thread adaptor to hook into the hydrant.

    Another question. You have 1200' of 3" line and you are going to supply the truck with it. The pump has the same setup on both sides. How would you hook into the pump? [/B]
    Hey, that's no fair. You made it sound like you specifically wanted answers for "just" the pump panel.

    But if we were going to hook into the hydrant it would be a 2.5" Storz to Thread adapter with a gate valve connected to each nipple.

    Another question. You have 1200' of 3" line and you are going to supply the truck with it. The pump has the same setup on both sides. How would you hook into the pump?
    We are supply the pumper with it, or a "truck" ?

    To supply the pumper you could use a LDV to 3" reducer on the (my) main intake with the Jaffrey valve. Could also use a 2.5" (male) - 3" ( female ) adapter to hook into the 2.5" intake....Once you have that water supply coming from the hydrant of course. If they did a reverse lay, and it was not a Storz connection, you'd need the Male-Male and Female Female connectors again.

    If you were supplying a "truck", a 2.5" to 3" adapter on one of the discharges would be fine. If it was a reverse lay without Storz, you would need the MM and FF connectors again.

  20. #120
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    Well I don't know what kind of goofy hose you're using but with the setup I have I would do this. The 3" lines 2.5" cuoplings on them with standard thread. I would lay dual lines in and hook in the (my) main intake on both sides of the truck. Remember it's 600' from the hydrant to the fire, and you have 1200' of line. There is an intake on both sides of the pump, so why not get the most water you can with dual lines? No adaptors are needed because it looks to me that the intake is 2.5".

    On a side note, we are still talking about the picture previously posted.
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    Well I don't know what kind of goofy hose you're using but with the setup I have I would do this. The 3" lines 2.5" cuoplings on them with standard thread. I would lay dual lines in and hook in the (my) main intake on both sides of the truck. Remember it's 600' from the hydrant to the fire, and you have 1200' of line. There is an intake on both sides of the pump, so why not get the most water you can with dual lines? No adaptors are needed because it looks to me that the intake is 2.5".
    I've seen 3" with Storz. I was thinking 1200' of line straight off the hydrant, or from another truck. Didn't think about the 600 feet from the hydrant thing.

    How about some more questions?

  22. #122
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    How about REALLY getting smart and going LDH?? There are adapters to go from 2.5 thread to 5"storz and then back you know.......

    less friction loss.
    I.A.C.O.J. Charter Member
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  23. #123
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    Default Name that knot...

    What is the name of the knot? What is its purpose?
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    "And let us not grow weary while doing good, for in due season we shall reap it if we do not lose heart."

  24. #124
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    Water knot

    Used to join together webbing or two ropes of the same size.
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    These opinions are mine and do not reflect the opinions of any organizations I am affiliated with.
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  25. #125
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    Name the 5 types of building construction.

    What is a draft curtain used for?

    What was the Corps of Vigles?

    What happend in London 1666?

    Why was the Factory Mutual insurance company started?

    How many colors does the FAA allow ARFF appartaus to be?

    Useing the law of static residules(sp), if you were operating a single 1.75" line and had a total pressure drop of 10% on the master pressure gauge, how many more lines of the same diamter could you operate?

    What did Mattydale do to thier Buffalo?

    Good luck!

    ps, many of my other questions are unanswerd, give them a shot.
    I dont suffer from insanity, I enjoy every minute of it.

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