Download pumper---------------------------------pumper and more Exams Advanced Education in PDF only on Docsity!
Pumper
Testing a flow meter consist of: - correct answer Connecting a hose line equipped with a solid stream nozzle to each discharge being tested. When conducting a service test using a static water source, you must have____ ft of hard intake hose for drafting? - correct answer 20 What are 3 things that must have occurred prior to raising the cab? - correct answer •All cab doors have been securely closed. •All loose items in the cab have been secured. •Adequate front and overhead clearance has been ensured. The benefit of an apparatus-mounted generator on a fire pump apparatus is that it can provide 50 kilowatts, whereas a portable generator can only produce? - correct answer 5 kilowatts The purchase acceptance test on a new fire apparatus should focus on: - correct answer Bid specifications It's recommended that fuel, oil, and mileage records be updated: - correct answer As determined by the jurisdiction. Identify THREE conditions where you should drive your fire apparatus in low gear. - correct answer •Climbing a hill •Traveling around a corner •Approaching an intersection Identify THREE exceptions to the rule that all personnel should be seated and wearing seat belts before an emergency vehicle begins moving. - correct answer •Loading the hose back onto the fire apparatus.
•Performing training for personnel learning to drive the tiller portion of a tractor- drawn aerial apparatus. •Providing patient care in the back of an ambulance. Identify the THREE steps for changing to the left lane on a limited access highway. - correct answer •Activate the turn signal. •Check the left side view mirror. •Move the apparatus safely to the left lane. When performing the serpentine exercise, you: - correct answer Should only travel in one direction, without striking the obstruction. Identify FOUR of the steps for completing a left turn on a four lane highway. - correct answer •Safely make the left turn. •Activate the left turn signal. •Check to see if the side street or road is clear. •Check for oncoming traffic. All of the following statements about driving a fire apparatus through areas of resurrected horizontal and vertical clearances are true EXCEPT: - correct answer Use the appropriate turn signal. Identify which factor is OPTIONAL during the diminishing clearance exercise. - correct answer Speed NFPA standard 1002 requires that driver/operators operate a fire apparatus over a predetermined route on a public roadway that incorporates all of the following except: - correct answer Both a left and a right curve. When using private potable or nonpotable water supplies in conjunction with a municipal system, it's important to avoid backflow of: - correct answer Private nonpotable water into the municipal system
Identify THREE characteristics of a small diameter hoses: - correct answer •Are designed for positive positive pressure •Have high friction loss •collapse under negative pressure The pump whose rotor is mounted off-center is the: - correct answer Rotary vane positive displacement pump. One of the drawbacks of a piston positive displacement pump is that the: - correct answer Fire stream tends to pulsate. One characteristic of discharge pressure relief valves is that they: - correct answer Are slow to close after being opened. When using a standard fog nozzle with class A foams, little or no performance improvement has been shown in concentration over: - correct answer 0.5% If the required application rate of class A foam for a 2,000 square foot fire is 0. gpm/ft2, and the nozzle gpm is 200, then the nozzle will: - correct answer Fall short of the application rate by 0.15 gpm/ft When assembling a portable foam induction system, all of the following apply EXCEPT: - correct answer Monitor the use of foam sediment in the eductor. Identify TWO ways in which the discharge pressure for pumping operations involving a sprinkler system can be found. - correct answer •Checking the Pre-incident pla •Checking the fire dept. connection plate. The first thing to do when you arrive at a property with an automatic sprinkler system is to: - correct answer Make preparations to supply the FDC by connecting his lines to the FDC and hydrant.
Most jurisdictions prefer to draft from a static water source during service testing because it: - correct answer Is a true test of the pump ability. All of the following are important reasons for maintaining inspection documentation on a fire apparatus EXCEPT: - correct answer Verifying that you are inspecting the correct apparatus. When entering an intersection, you should: - correct answer Make eye contact with the other drivers at or entering the intersection. When driving through intersections that require a stop, you must perform all of the following steps EXCEPT: - correct answer Turn on flashers to indicate you are crossing. Identify the true statement about a fire apparatus with an automatic transmission: - correct answer Gives you the option of selecting a gear. You shoulder NEVER back a fire apparatus: - correct answer If you don't have at least one spotter. NFPA standard 1002 requires that driver/operators operate a fire apparatus over a predetermined route on a public roadway that incorporates all of the following EXCEPT: - correct answer Two through-intersections and one intersection that requires you to stop. Hand lines can operate at flow rates up to: - correct answer 350 gpm "C" in the formula FL = C Q2 L represents the: - correct answer Hose diameter coefficient. The best type of strainer to use in a shallow stream is a: - correct answer Floating strainer One of the assumptions of a maximum distance relay method is that: - correct answer There is 20 psi of residual pressure at each relay pumper.
Identify THREE important reasons for knowing a fire apparatus's dimensions: - correct answer •So you know whether it can travel under a specific overpass. •So you don't hit any obstructions or obstacles. •So you are sure it will fit in a designated parking area. When performing the serpentine exercise you would be penalized for: - correct answer Hitting or brushing one of the markers. You may need to perform a confined space turnaround: - correct answer For a reverse hose lay in a narrow street or intersection. A quantity of 16.66 pounds of water equals: - correct answer 2.0 gallons One of the principles of pressure says that the pressure on an amount of water: - correct answer Is always perpendicular to any surface it acts on. Your fire fighting team is about to use a 1-inch solid stream nozzle. You tell them they can't expect a "nozzle reaction," which in layman's terms means: - correct answer The counter force to the force of the water discharged from the nozzle. You figure pressure loss in a single hoseline flowing at 350 gpm to be 45 psi. Then, the layout is altered by adding an appliance, and the nozzle is taken to the sixth floor of a burning structure. The friction loss for this new layout is now: - correct answer 80psi Calculate the gpm flowing from a 1 3/4-inch solid master stream operating at a nozzle pressure of 80 psi. - correct answer 813 gpm Using the condensed "Q" formula, the friction loss for 500 feet of 3-inch hose flowing at 300 gpm is approximately: - correct answer 45 psi
When drafting from a static water source, it may be necessary to "stop short" of your desired apparatus position and: - correct answer Make your connections before moving into position. In a relay operation, relay pumper must set their intake pressure relief valves (if available) at: - correct answer 10 psi above the discharge pressure of the previous pumper. In a relay pumping operation, the pressure at which pumps achieve their maximum flow (with higher pressures resulting in lower volumes) is: - correct answer 150 psi When controlling pump valves, push-pull handles: - correct answer Can accurately control line pressure and be locked into place. According to NFPA 1901, a discharge pressure relief valve must operate within: - correct answer 10 seconds after discharge pressure rises 30 psi above the set level. Fog nozzles are best used to aerate: - correct answer All class A foams Class B foams on hydrocarbons can be used in concentrations of up to: - correct answer 3% If the standpipe for a building with only one standpipe is totally unusable: - correct answer As a LAST resort, lay supply hose up an interior stairwell. During service testing, it is important that the water temperature be between: - correct answer 35F - 90F The purpose of the gauge and flow meter test is to: - correct answer Check that the given discharge information is accurate when the pump is in operation. Identify TWO true statements about inverters. - correct answer •Inverters output is usually limited to less than 1,500 watts. •Inverters are quiet as compared to generators.
Identify TWO correct statements about conducting a daily inspection of a fire apparatus: - correct answer •Confirm that the foam tank level is full. •Operate the pump drive control. To raise the temperature of one lb. of water from 100F to 212F takes: - correct answer 112 BTUs In centrifugal pumps, to correct for a lateral thrust wear on parts, the pump: - correct answer Has water enter the impeller in both directions. Most jurisdictions prefer to draft from a static water source during service testing because it: - correct answer Is a true test of the pump's ability. All of the following are rescue tools EXCEPT:
- spreaders
- shears
- drills
- extension ram - correct answer Drills On the vacuum service test, the system vacuum and pump priming device should achieve a column of mercury of at least: - correct answer 22 inches The total stopping distance is: - correct answer The sum of the driver/ operator reaction distance and the fire apparatus's braking distance. Before driving over a guarded railroad crossing during an emergency response: - correct answer Look both right and left and proceed cautiously. The master stream device that is often called a deck gun is the: - correct answer Turret pipe device
The "bank-down" method of foam application can best be described as: - correct answer Directing the foam stream onto the sides of the object and allowing it to run down onto the surface of the burning liquid. The definition of lift is: - correct answer The vertical distance from the surface of the water to the middle of the intake, When performing drafting operations, for a pump to operate at its rated capacity _____ inches of water must be above a traditional strainer. - correct answer 24 It is important to monitor the water level in the onboard tank because: - correct answer You need to know if the incident requires additional water before the tank is empty. Identify THREE considerations for determining the position of a fire apparatus. - correct answer •need for rescue •access to water •method of attack The major advantage of a reverse lay is that it: - correct answer Permits the pumper to boost the hydrant pressure easily. To allow additional connections without interrupting hydrant flow, it is often recommended that the smaller hydrant discharge is equipped with a: - correct answer Gate valve Place the steps for drafting from a static water source in the correct order: - correct answer 1. Stop short
- Make your connections
- Move into position
- Place the hose in the water When shutting down a constant pressure relay, it's important to: - correct answer Start with the attack pumper and work backward to the source pumper.
Class B foams on polar solvents can be used in concentrations of up to: - correct answer 6% When batched or pre-mixed, class A foams lose their foaming properties after: - correct answer 24 hours In a foam induction system, no suction occurs if the pressure drop between the inlet and the outlet of the eductor is not at least: - correct answer 30% Indentify TWO ways to determine the discharge pressure for pumping operations involving a standpipe system: - correct answer •Uses the calculations or rule of the thumb determined during pre-incident planning. •Include the pressure loss for the standpipe, FDC, and other components of the hose lay. If the FDC has a frozen swivel: - correct answer Use a double male with a double female to make connections. When responding to a fire where an automatic sprinkler system is present: - correct answer Immediate preparations should be made to supply the fire dept. connection. During fire apparatus service testing, the atmospheric air temperature should be between: - correct answer 0F-100F The comparison between the gauge and flowmeter readings should differ no more than: - correct answer 10% Identify THREE pieces of equipment that you may need to conduct service testing on fire apparatus: - correct answer •Tachometer •Solid stream nozzle •External test gauges The pressure control service test measures pressure control devices at three different points. They are: - correct answer 150psi, 90 psi, and 250 psi
Identify TWO correct statements about hydrants. - correct answer •Grid systems with large supply mains and looping secondary mains generally have less friction losses and deterioration. •if hydrants are color coded, select a light blue hydrant when responding to a large incident and be sure to test the flow before connecting the hydrant to the fire pump. Place the codes hydrants in order of capacity from LEAST capacity to GREATEST: - correct answer 1. Red
- Orange
- Green
- Light blue The major advantage of a forward lay is that: - correct answer It allows the driver/operator to monitor the fire scene. During drafting procedures from a static water source, one technique for keeping the strainer off of the bottom of the water source involves the use of: - correct answer A rope The efficiency of many priming devices is improved through the use of: - correct answer An oil-injection system The big advantage of centrifugal pumps over positive displacement pumps is that centrifugal pumps: - correct answer Can provide water in variable pressures and volumes. An important feature of most screw-on intake pressure relief valves is that they: - correct answer Have bleeder valves to vent air when a connected line is being charged. Foam in a foam induction system is drawn into the system through the use of a: - correct answer Eductor
With fixed rescue tool supply systems, a manifold can be compared to: - correct answer A junction box When maintaining fire apparatus records you should: - correct answer Refer to your department's standard operating procedures for specific guidance. Check to see if the automotive gauges in your fire apparatus are functioning properly by: - correct answer Starting the engine and making sure that the gauges move into their normal operative ranges. Before you drive your fire apparatus across a bridge, you should: - correct answer Compare the weight of the fire apparatus to the Bridge's capacity. The exercise that might be substituted for the alley dock exercise in your jurisdiction is the: - correct answer Apparatus station parking maneuver. When approaching an underpass or low clearance: - correct answer Check to see if the underpass height is marked. The side view mirrors on a fire apparatus are used to: - correct answer Identify obstacles on the sides and rear of the fire apparatus. When driving a fire apparatus through an area with a restricted horizontal and vertical clearance, you should: - correct answer Be able to judge the distance between the wheels of the fire apparatus and any object. What effect does water sprayed in a fog pattern have on a fire: - correct answer It speeds up water ability to absorb heat. In a fire hose, the factor with the greatest impact on friction loss is: - correct answer Hose diameter
A hose has a flow rate of 100 gpm with a friction loss of 18 psi. If the flow rate increases to 400 gpm, then the friction loss will increase to: - correct answer 288 psi Which statement best describes a post indicator valve (PIV) in a water distribution system? - correct answer It has an indicator window that says OPEN or SHUT. For fire service functions, water distribution systems are best when: - correct answer Their mains and secondaries are arranged in loops. Water has a specific heat index of: - correct answer 1 To determine the nozzle reaction for a given solid stream nozzle, the elements that you will need to complete the process are: - correct answer Nozzle diameter and nozzle pressure The special purpose nozzle that often needs a sledge-hammer to be used is the: - correct answer Piercing nozzle Driving several jets of water together to create a fog pattern is called: - correct answer An impinging stream The device that can move the fire stream up and down but not side-to-side is the: - correct answer Detachable ladder pipe Identify THREE situations when master streams are preferable: - correct answer •When manpower is limited •When hand lines are ineffective •When conditions are unsafe If a Force is applied to a confined amount of water, the water will transfer that pressure: - correct answer Equally in all directions Identify THREE uses of a flowmeter in fire fighting: - correct answer •As a diagnostic tool
