Chapter 11 Pump Ops 1

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1 1. The process for making the fire pump operational begins: a. En route to the emergency scene b. Immediately after receiving dispatch c. After connecting to the water source and determining proper operating pressures d. After the apparatus has been properly positioned and the parking brake has been set 2. On the majority of apparatus, the procedure for making the pump operational takes place: a. At the pump b. In the hose bed c. At the pump panel d. Before the driver/operator exits the cab. 3. Except when the apparatus is used for pump and roll operations, what is the next step after the driver/operator exits the cab? a. Prime the pump b. Activate the pump panel c. Chalk the apparatus wheels d. Set the auxiliary parking brake 4. Of the three possibility types of water supply for the fire pump, most driver/operators operate solely from the at the vast majority of incidents. a. Fire hydrant b. On board water tank c. Static water supply d. Private water supply 5. If it appears that a pump will be required to furnish more than per cent of its rated capacity, it should be set to the PARALLEL (VOLUME) position from the store. a. 50 b. 60 c. 70 d Which of the following is a danger of operating at negative-pressure from a fire hydrant? a. Increases the possibility of damage to the source pumper due to cavitation b. May make it necessary to make a later transition to a static supply source c. Can cause water to enter the pump with too much pressure from the source d. Can cause supply hose to collapse, resulting in interruption of water supply

2 7. Which of the following is a danger of operating at negative-pressure from another pumper? a. Increases the possibility of damage to the source pumper due to cavitation b. May make it necessary to make a later transition to a static supply source c. Can cause water to enter the pump with too much pressure from the source d. Can cause supply hose to collapse, resulting in interruption of water supply 8. When operating from a public or private water system, do not allow of the incoming pressure from a hydrant to drop below PSI to avoid possible damage to the water system. a. 10 PSI b. 20 PSI c. 30 PSI d. 40 PSI 9. When choosing a hydrant, the best hydrants are located: a. On dead end mains b. On opened ended mains c. On single mains that supplied small amounts of water d. On large water mains that are interconnected in a grid pattern 10. When choosing a hydrant, the worst hydrants typically are those located: a. On dead end mains b. On opened ended mains c. On single mains that supplied small amounts of water d. On large water mains that are interconnected in a grid pattern 11. Which of the following mains commonly become clogged with sentiment and encrustation, further reducing their capacity? a. On dead end mains b. On opened ended mains c. Single mains that supply small amounts of water d. Large water mains that are interconnected in a grid pattern 12. Which of the following is NOT a way in which reliability of hydrants can be found? a. Fire departments should have access to water department records b. Apparatus may be equipped with map books with hydrant information and locations c. Fire hydrants may be color coded to indicate the flow that can be expected from then d. A pumper should be hooked up as quickly as possible to test the flow rate of each hydrant

3 13. One possible problem with a forward lay depends on: a. The distance from the hydrant to the main and the length of pipes being used b. The distance from the hydrant to the fire and the length of the hose carried on the engine c. The distance from the apparatus to the fire and the length of the hose carried on the engine d. The distance from the hydrant to the main and the length of the hose carried on the engine 14. When making a forward lay on dry-barrel hydrants, it is recommended that be attached to the unused hydrant discharges. a. Gate valves b. Inlet valves c. Main valves d. Butterfly valves 15. With a reverse lay, hose is laid from: a. The apparatus to the fire b. The fire to the water source c. The water source to the fire d. The water source to the apparatus 16. A reverse lay is used so that can be made before laying a supply line. a. Size up b. Hydrant decisions c. Pumper connections d. Hydrant connections 17. If threaded couplings are used, hose beds set up for reverse lays should be loaded so that the first coupling to come all of is: a. Male b. Female c. 50 feet from the next coupling d. 100 feet from the next coupling 18. The reverse lay has become a standard method for setting up a operation when using medium diameter hose as a supply line. a. Stand pipe b. Sprinkler c. Static water d. Relay pumping

4 19. A disadvantage of the reverse lay is that: a. A four way hydrant valve must be used, which may not be carried on all apparatus b. The friction loss in the hoselines may be too great to provide an adequate supply of water c. The flow of the original supply line may be interrupted when a second pumper connects to the hydrant d. Essential firefighting equipment must be removed and placed at the fire location before the pumper can proceed to the water source 20. When operating from any pressurized water supply source, do not engage for pump drive system if there will be an extended period of time where water is introduced into the pump. a. Before leaving the cab b. Until the wheels are chocked c. Until drain valves are opened d. Until tank fill valves are opened 21. When putting the pump in service, if operating a two stage pump, set the valve to the proper position before increasing the throttle to build discharge pressure. a. Gate b. Drain c. Tank fill d. Transfer 22. When putting the pump in service, open discharge valves: a. Slowly b. Quickly c. Partially d. Completely 23. When using the percentage method to determine how much more water a hydrant can supply, first calculate the drop in pressure using the following formula: a. (Static Residual)(100) Static b. (Static Residual)(100) Residual c. (Residual Static)(100) Residual d. (Residual Static)(100) Static

5 24. Using the percentage method, if the percent decrease of the pumper intake pressure is between 0-10, how much more additional water is available? a. One additional lines of the same flow b. Two additional lines of the same flow c. Three additional lines of the same flow d. Four additional lines of the same flow 25. Using the percentage method, if the pressure decreases of the pumper intake pressure is between 16-25, how much more additional water is available? a. One additional lines of the same flow b. Two additional lines of the same flow c. Three additional lines of the same flow d. Four additional lines of the same flow 26. When using the first digit method for calculating available water, is the PS I drop is equal to or less than the first digit of the static pressure multiplied by one (1), how much more additional water is available? a. One additional lines of the same flow b. Two additional lines of the same flow c. Three additional lines of the same flow d. Four additional lines of the same flow 27. When using the first digit method for calculating available water, if the PSI drop is equal to or less than the firstdue two of the static pressure multiplied by two (2), how much more additional water is available? a. One additional lines of the same flow b. Two additional lines of the same flow c. Three additional lines of the same flow d. Four additional lines of the same flow 28. When using the squaring the lines method for calculating available water, square the number of lines currently flowing and multiply this by: a. The static water pressure b. The residual pressure c. The original pressure drop d. The first digit of the static pressure

6 29. In most cases, a static water supply will be located: a. Above the fire pump b. On the same level as the fire pump c. At a lower level than the fire pump d. Adjacent to and parallel with the fire pump 30. In order to pump from a lower level static water supply source, must be created by evacuating some of the air inside the pump. a. A gravity feed b. Venturi action c. A partial vacuum d. Centrifugal force 31. To force water into the pump from a static water supply source, is needed between the fire pump and the body of water to be used. a. Soft intake hose b. Hard intake hose c. A four way valve d. A sexless connection 32. What happens when an attempt is made to increase the discharge from the pump beyond the point of maximum vacuum on the intake? a. Cavitation results b. Air hammer occurs c. Water hammer occurs d. The pump engine stalls 33. When selecting a draft site, the choice is dictated by all of the following factors EXCEPT: a. Type of water b. Amount of water c. accessibility of water d. Cleanliness of water 34. The most important factor in the choice of the draft s site is the of water available. a. Depth b. Amount c. Location d. Cleanliness

7 35. In order for a pumper to approach its rated capacity using a traditional strainer, there should be a minimum of of water above the strainer a. 6 inches b. 1 foot c. 2 feet d. 3 feet 36. If there is not an adequate amount of water above the straighter, the rapid movement of the water into the intake strainer creates: a. A Whirlpool b. Backward siphoning into the pump c. Increased intake hose friction loss and a d. A pressure differential and intake drop 37. Low level strainers are designed to sit directly on the bottom of the tank or pool and are capable of allowing water to be drafted down to a depth of about: a. 2 inches b. 3 inches c. 4 inches d. 5 inches 38. Water that is below or above may adversely impact the pumps ability to reach capacity. a. 10 F; 100 F b. 15 F; 100 F c. 25 F; 95 F d. 35 F; 90 F 39. Pumping water can be harmful to the pump. a. Soft b. Hard c. Cold d. Nonpotable (untreated) 40. Select in a drafting site includes: a. Time of day b. Wind conditions c. Safety of bystanders d. Stability of the ground

8 41. If the apparatus is not able to park directly at the drafting location: a. The driver/operator will have to find a more suitable drafting location b. Another pumper must be used until a suitable drafting site can be located c. The company officer will have to connect a pumper to the nearest hydrant d. Firefighters will have to carry the hose and straighter and put them into the desired position 42. If a barrel strainer is used at a drafting site, the rope that was tied to it can be used to suspend the strainer above the bottom by tying it to: a. A tree b. The pumper c. Another fixed object d. All of the above 43. The entire priming action typically requires seconds from start to finish. a. 5 to 10 b. 10 to 15 c. 15 to 20 d. 20 to The most common causes of inability to prime is: a. An air leak b. Lift is too high c. Insufficient fluid d. Engine speed to low 45. Which of the following is a problem that may occur while operating from a draft? a. Overheating of the pump b. Air leak on the intake side of the pump c. Air leak on the discharge side of the pump d. Air leakage due to defective valves in the pump 46. The water supply for sprinkler systems is designed to supply of the total number of sprinklers on the system. a. Only a fraction b. At least half c. 75% d. 100%

9 47. If there is any indication of an actual fire, a minimum of should be connected to the FD C. a. One 2½ inch hose line b. Two 2 ½ inch hose lines c. Two 3 inch hose lines d. Three 2 ½ inch hose lines 48. If recommended discharge pressure is not on the FDC plate or in the pre-incident planning information, the general rule of thumb is to discharge into the FDC. a. 150 PSI b. 200 PSI c. 250 PSI d. 300 PSI 49. Generally, what lines should be used to support stand pipe systems? a. Stand pipe lines b. Interior house lines c. Exterior house lines d. Fire department attack lines 50. Add approximately PSI to the desired nozzle pressure for each floor above the stand pipe connection that will have operating fire streams. a PSI b. 0.5 PSI c. 5 PSI d. 50 PSI

10 Answers 1. D (315) 11.C (324) 21. D (331) 31. B (335) 41. D (341) 2. D (316) 12.D (324) 22. A (331) 32. A (337) 42. D (343) 3. C (316) 13.B (325) 23. A (332) 33. D (338) 43. B (344) 4. B (320) 14.A (327) 24. C (332) 34. B (338) 44. A (344) 5. A (321) 15.B (328) 25. A (332) 35. C (338) 45. B (345) 6. A (324) 16.A (328) 26. C (333) 36. A (338) 46. A (347) 7. D (324) 17.A (328) 27. B (333) 37. A (339) 47. B (347) 8. B (324) 18.D (328) 28. C (333) 38. D (340) 48. A (348) 9. B (324) 19.D (329) 29. C (334) 39. D (340) 49. D (348) 10. D (324) 20. A (331) 30. C (335) 40. D (341) 50. C (350)

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