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Driver Operator Pumper Questions with
solutions
NFPA 1901 - answer Standard for Automotive Fire Apparatus 300 gallons - answerNFPA 1901 states that pumpers must have a water capacity of at least Rescue pumper - answerSpecially designed apparatus that combines the functions of both a rescue vehicle and a fire department pumper CAFS - answerHigh-energy foam generation system consisting of a water pump and air compressor that injects air into a foam 20-100 - answerRange of foam tanks in gallons Mobile water supply apparatus - answerThis truck is responsible for: 1- Mobile shuttle operation 2-Stationary reservoir ARFF - answerProvides immediate suppression of flammable liquid fires and vapors from fuel spills Aerial apparatus - answerThis may function with capabilities of an engine or ladder company Quint - answerApparatus that serves as an engine and a ladder truck, equipped with fire pump, water tank, ground ladders, hose bed, and aerial device Inverter - answerStep-up transformer that converts a vehicle's 12 or 24 volt DC current into 110 or 220 volt AC current Generators - answerMost common power source used for emergency services Brush trucks - answerBooster, forestry, small diameter attack hoses are on this truck Overtaking electrical supply - answerThis may cause poor lighting quality, damage to lighting and generator equipment, and restriction of other tools operated with the same power source
Rescue tools - answerThese are powered by hydraulic pressure, compressed air, or a power take-off system Apparatus typing - answerCategorizing pumping apparatus and mobile water supply based on capability Trailer-mounted - answerThese generators are suitable for long-term operations Systematic apparatus maintenance - answerEvery department should develop SOPS for Commercial driver's license - answerDriver's license issued to individuals who demonstrate competence inspecting and driving vehicles with a gross vehicle rating of 26,001 pounds or more Operational readiness inspection - answerInspecting an apparatus and equipment on the apparatus to ensure that all equipment is in place, clean, and ready for service Pretrip road worthiness inspection - answerVisual inspection of an apparatus to ensure the major components of the chassis are present and in proper working condition Functional check - answerInspection where a certain system or component of an apparatus is operated to ensure it is functioning properly Gross axle weight ratings - answerTire selections for fire apparatus are based on Tire condition - answerProper tread depth, tread separation, cupping, excessive wear on the sidewalls, cuts, dry rotting, cracking tires, or objects impaled in the tire etc. are checked while looking at NFPA 1911 - answerAll tires be replaced every seven years regardless of condition Load management systems - answerElectrical monitoring system that will shed electrical load in a predetermined order if the chassis voltage begins to drop below a predetermined level Overload - answerOperation of equipment or a conductor in excess of its rated ampacity; may result in overheating Load sequencer - answerDevice in an electrical system that turns lights on at specified intervals so that start up load for all of the devices does not occur at the same time Load monitor - answerDevice that "watches" an electrical system for added loads that may threaten to overload the system
Angle of departure - answerAngle formed by level ground and a line from the point where the rear tires touch the ground to the lowest projecton at the rear of the apparatus Breakover angle - answerAngle formed by level ground and a line from the point where the rear tires touch the ground to the bottom of the frame at the wheel base midpoint Overthrottling - answerProcess of injecting or supplying the diesel engine with more fuel than can be burned Change pitch - answerCivilian drivers respond better to sounds that change pitch 50 mph - answerSpeeds above this may cause the vehicle to outrun the effective range of its audible warning device Forward momentum - answerBringing a vehicle to a full and complete stop requires removing all of its Acceleration and locked wheel - answerTwo types of skid Engine compression brake - answerAny device that uses the engine and transmission to impede the forward motion of the motor vehicle by compression of the engine Stability control system - answerPrevents rollovers and tipping caused by cornering or sudden changes in direction Backup warning alarm - answerAll apparatus should be equipped with a Radio or hand signal - answerTwo kinds of communications for backing Hydraulic fluid - answerThis is toxic to the skin Relay - answerTo shuttle water between a source and an emergency scene using mobile water supply apparatus Static water supply - answerThis at rest that doesn't provide a pressure head for fire suppression but may be employed as a suction source for fire pumps PFD - answerPersonnel working at the edge of bodies of water are required to wear a Intake hose - answerHose used to connect a fire dept. pumper or a portable pump to a nearby water source Dual pumping - answerStrong hydrant is used to supply two pumpers by connecting the pumpers intake to intake
Tandem pumping - answerPumper taking water from supply source pup into the intake of the second pumper Anchor point - answerPoint from which a fire lin is begun Level 1 staging - answerMultiunit response of greater than two units Base - answerLocation at which the primary incident management logistics functions are coordinated and administered 30 feet - answerApparatus should maintain a clear zone of at least _________ from railroad tracks to prevent contact on the railroad cars Vacuum - answerIn the fire service and emergency services, a pressure that is somewhat less than atmospheric pressure Residual pressure - answerPressure at the test hydrant while water is flowing Elevation pressure - answerGain or loss of pressure in a hoseline due to change in elevation 8.3 lb/gal - answerWater weighs Heat is absorbed - answerThe greater surface area of water exposed, the more rapidly Structural collapse - answerAccumulations of water within a structure can lead to an increased potential for 1 kj - answer1 liter of water is Fluid pressure - answer_______________ is perpendicular to any surface on which it acts Depth - answerThe pressure of a liquid in an open vessel is proportional to its Density of the liquid - answerThe pressure of a liquid in an open vessel is proportional to the 14.7 psi - answerAtmospheric pressure at sea level is Perfect vacuum - answerAbsolute zero pressure Head - answerHeight of water supply above the discharge orifice
Fixed monitor - answerCommonly called deck guns and permanently mounted on the apparatus Combination monitor - answerMay be used in a mount on the apparatus or removed and used remotely from the vehicle Portable monitor - answerStored on the apparatus for deployment to the location where they are to be used Piercing nozzle - answerNozzle commonly used in aircraft fire fighting, car fires, or to apply water to voids, attics, or other areas inaccessible to standard fire streams Appliance - answerGeneric term applied to any nozzle, wye, siamese, deluge monitor, or other piece of hardware used in conjunction with fire hose for the purpose of delivering water Pump discharge pressure - answerActual pressure of the water as it leaves the pump and enters the hoseline; total amount of pressure being discharged by a pump Net pump discharge pressure - answerActual amount of pressure being produced by the pump; difference between the intake pressure and the discharge pressure Flowmeter - answerMechanical device installed in a discharge line that senses the amount of water flowing and provides a readout in units of gallons Paddlewheel - answerFlowmeter mounted at the top of a straight section of the discharge pipe so that only a small portion of the device extends into the waterway Spring probe - answerFlowmeter that employs a stainless steel spring probe to detect water movement in the discharge piping Pump chart - answerCharts carried on a fire apparatus to aid the pump operator in determining the proper pump discharge pressure when supplying hoselines Positive displacement pump - answerSelf-priming pump that utilizes a piston or interlocking rotors to move a given amount of fluid through the pump chamber with each stroke of the piston or rotation of the rotors Piston pump - answerPositive-displacement pump using one or more reciprocating pistons to force water from the pump chambers Rotary vane pump - answerType of positive displacement pump commonly used in hydraulic systems; a rotor with attaches vanes is mounted off-center inside the pump
housing; pressure is imparted on the water as the space between the rotor and the pump housing wall decreases Centrifugal pump - answerPump with on or more impellers that rotate and utilize centrifugal force to move the water Impeller - answerVaned, circulating member of the centrifugal pump that transmits motion to the water Impeller eye - answerIntake orifice at the center of a centrifugal pump impeller Volute - answerSpiral, divergent chamber of a centrifugal pump in which the velocity energy given to water by the impeller blades is converted into pressure Clapper valve - answerHinged valve that permits the flow of water in one direction only Check valve - answerAutomatic valve that permits liquid to flow in only one direction Wear ring - answerReplaceable rings that are attached to the impeller and/or the pump casing to allow a small running clearance between the impeller and pump casing without causing wear of the actual impeller or pump casing material Power takeoff system - answerMechanism that allow a vehicle engine to power equipment such as a pump, winch, or portable tool; it is typically attached to the transmission Pump and roll - answerAbility of an apparatus to pump water while the vehicle is in motion Open tank to pump valve - answerFirst step in operating a pump Open discharges to hoselines to be used - answerSecond step in operating a pump Open valves and increase throttle - answerThird and fourth steps to operating a pump Adjust pressure - answerLast step to operation a pump Pressure governor - answerPressure control device that controls engine speed, eliminating hazardous conditions that result from excessive pressures Cavitation - answerCondition in which vacuum pockets form due to localized regions of low pressure at the vanes in the impeller of a centrifugal pump
Nonpotable water - answerWater that has not been examined, properly treated, and not approved by appropriate authorities as being safe for consumption 20 feet - answerTo create an effective fire stream while drafting, a lift of no greater than this is recommended Open drain or valve - answerMost common cause of an air leak Flow tested - answerStrainers should be __________ before being deployed at an incident Pressure-reducing valve - answerValve installed at standpipe connection that is designed to reduce the amount of water pressure at that discharge to a specific pressure Municipal water supply - answerRural areas often do not have a Lift - answerThe difference in elevation between the surface of the static water supply and the center of the pump intake Theoretical lift - answerHeight that a column of water may be lifted by atmospheric pressure in a true vacuum Maximum lift - answerGreatest height to which any amount of water may be raised through an intake hose to the pump Dependable lift - answerHeight a column of water may be lifted in sufficient quantity to provide a reliable fire flow Back flushing - answerCleaning a fire pump or piping by flowing water through it in the opposite direction of normal flow Sprinkler activation - answerImmediately supply FDC where there is a fire with 185 psi - answerDo not use pump discharge pressures in excess of _________________ unless the standpipe system, hose, and appliances have been designed to function under high pressures 150 psi - answerMany manual standpipe systems are designed to be pumped at a pressure of Air must be exhausted - answerIn order to establish a draft, _______________ from the intake hose and fire pump
14.7 feet - answerEvery fire pump that is operating properly should have a dependable lift of at least Floating strainers - answerThese strainers can be used for water as shallow as 1 feet Private water storage tanks - answerLarge residential, industrial, or agricultural locations may feature Relay Operation - answerUsing two or more pumpers to move water over a long distance by operating them in series Water supply pumper - answerPumper that takes water from a hydrant or static source and pumps it under pressure to the next apparatus in the relay pumping operation Relay pumper - answerPumper connected within the relay that receives water from the source pumper, raises the pressure, and then supplies water to the next apparatus Tender - answerTerm used within the ICS for a mobile piece of apparatus that has the primary function of supporting another operation Equalized - answerWhen relaying long distances, the hose lays between each pumper should be Dump line - answerSecured hoseline that is used to handle excess water during a relay operation Mechanical foam - answerFoam produced by a physical agitation of a mixture of foam concentrate, water, and air Proportioning - answerMixing of water with an appropriate amount of foam concentrate in order to form a foam solution Aeration - answerIntroduction of air into a foam solution to create bubbles that result in finished foam Eduction - answerProcess used to mix foam concentrate with water in a nozzle or proportioner Foam concentrate - answerRaw chemical compound solution that is mixed with water and air to produce finished foam Foam proportioner - answerDevice that injects the correct amount of foam concentrate into the water stream to make to foam solution
Foam expansion - answerResult of adding air to a foam solution consisting of water and foam concentrate NFPA 11 - answerMinimum foam solution application rates for ignited fuels are specified in Hydrolyze - answerTo cause or undergo a chemical process of decomposition involving the splitting of a bond and the addition of the element of water Burnback resistance - answerAbility of a foam blanket to resist direct flame impingement such as would be evident in a partially extinguished petroleum fire Film Forming Fluoroprotein foam - answerFoam concentrate that combines the qualities of fluoroprotein foam with those of aqueous film forming foam Aqueous film forming foam - answerSynthetic foam concentrate that, when combined with water, can form a complete vapor barrier over fuel spills and fires and is a highly effective extinguishing and blanketing agent on hydrocarbon fuels In-line foam eductor - answerType of foam delivery device that is located in the water supply line near the nozzle High-expansion foam - answerFoam used for concealed space fires; low water content; less runoff and minimizes water damage Back pressure - answerPressure loss or gain created by changes in elevation between the nozzle and pump Jet ratio controller - answerType of foam eductor that is used to supply self-educting master stream nozzles SDS - answerConduct flushing operations in accordance with the _______ supplied by the foam manufacturer Class A - answerSmooth bore nozzles are limited to the application of this foam from a CAFS Air-aspirating foam nozzle - answerNozzle that inducts air into the foam solution by a venturi action Mechanical blower - answerHigh-expansion foam generator that uses a fan to inject the air into the foam solution as it passes through the unit Direct application - answerApplying finished foam directly onto the burning material
Roll-on method - answerDirecting a foam fire stream on the ground near the front edge of a burning liquid spill Bank-down method - answerDirecting foam onto a vertical surface and allowing it to run down and spread across the pooled fuel product Rain-down method - answerDirecting foam stream into the air above the unignited or ignited spill of fire, allowing the foam to float gently down onto the surface of the fuel Air drop - answerProcess of dropping water, short-term fire retardant, or long-term fire retardant from an air tanker or helicopter onto a wildland fire Road test - answerPreservice apparatus maneuverability tests designed to determine the road-worthiness of a new vehicle Performance requirements - answerWritten list of expected capabilities for new apparatus Hydrostatic test - answerTesting method that uses water under pressure to check the integrity of pressure vessels Fire flow testing - answerProcedure used to determine the rate of water flow available for fire fighting at various points within the distribution system Acceptance testing - answerPreservice test on fire apparatus or equipment, performed at the factory or after delivery, to assure the purchaser that the apparatus or equipment meets bid specifications Refractometer - answerDevice used to measure the amount of foam concentrate in the solution Tenders and pumpers - answerTwo primary types of apparatus associated with water shuttle operations Multiple tank operation - answerIncidents that require a flow rate in excess of 300 gpm are best served by a 500 - answerAny tank should have a capacity of at least ________ gallons larger than the water tank on the apparatus that will supply it 750 gpm - answerAccording to NFPA 1901, fire department pumpers should have a minimum pump capacity of Mini-pumper - answerWhat term is often used to define pumping apparatus smaller than a full-size pumper?
Engine rpm is too low - answerWhat problem is most likely to cause an inability to prime? Notify IC - answerWhat should a driver/operator do immediately upon indication that the water supply or pumping ability may be unattainable or interrupted? 25 feet - answerIn most circumstances, maximum lift is approximately: From the fire scene first - answerWhen need for relay pumping has ended, the operation should be discontinued: 1,000 gpm - answerIn accordance with NFPA 1901, water tenders must be designed to be filled at a rate of at least 90% - answerThe ISO formula uses ___________ of a tender's total tank capacity to account for water lost or undischarged and remaining in the tank after the dump valve is closed
