Chapter 10 Flashcards
1.The process of making a fire pump operational begins: (336)
A.when initiating parking maneuvers.
B.after the incident action plan has been put into place.
C.approximately five minutes before arriving at the incident scene.
D.after the apparatus is properly positioned and the parking brake is set.
D.after the apparatus is properly positioned and the parking brake is set.
2.Most apparatus are designed so that the procedure for making the pump operational is performed: (336)
A.entirely from the cab of the vehicle.
B.entirely from the outside of the vehicle.
C.both from the cab of the vehicle and outside of the vehicle.
D.with remote control switches that can be located virtually anywhere.
A.entirely from the cab of the vehicle.
3.It is recommended that wheels be chocked: (336)
A.when parked on a slope.
B.if parked more than ten minutes.
C.every time the driver/operator exits the cab.
D.when the driver/operator will leave the parked apparatus.
C.every time the driver/operator exits the cab.
4.The water supply from an onboard water tank is: (336)
A.used only for incipient fires.
B.a backup supply in case of emergencies.
C.the sole source of supply for many incidents.
D.not significant enough to be the sole source of supply.
C.the sole source of supply for many incidents.
5.Which BEST describes when the driver/operator is ready to operate the pump to generate sufficient pressure to create an effective fire stream? (337)
A.When the fire passes the incipient stage
B.When the water source has been identified
C.When all personnel have exited the apparatus
D.When the fire pump has been made operational
D.When the fire pump has been made operational
6.When the pump is in operation, the driver/operator must: (337)
A.ensure the incident action plan is being followed by all team members.
B.monitor the cost involved in running the pump as well as possible water costs.
C.ensure all team members are wearing appropriate personal protective equipment.
D.monitor all gauges associated with the engine as well as with the operation of the fire pump.
D.monitor all gauges associated with the engine as well as with the operation of the fire pump.
7.If water is not flowing for an extended period of time during fire attack, why might a circulator, bypass, or booster cooling valve be opened on a pump? (337-338)
A.To bleed off excess air
B.To increase water pressure
C.To decrease water pressure
D.To prevent the pump from overheating
D.To prevent the pump from overheating
8.Which is a step the driver/operator takes when transitioning to an external water supply? (338)
A.Completely close intake gate valve
B.Shut off all operations involving the pump
C.Connect supply line into an appropriate intake of the fire pump
D.Close bleeder valve on the gated intake so air will not escape
C.Connect supply line into an appropriate intake of the fire pump
9.The two basic pressurized water supply sources are a fire hydrant and: (339)
A.a water tower.
B.a portable water tank.
C.a supply hose from another pumper.
D.an onboard water tank or trailered water tank.
C.a supply hose from another pumper.
10.If discharge flow volume is increased too much when operating from a pressurized water source: (339)
A.the area may become flooded.
B.it may lead to cavitation of the pump.
C.the supply hose may collapse, interrupting the water supply.
D.intake pressure from the supply source may be reduced to a point that may damage the pump.
D.intake pressure from the supply source may be reduced to a point that may damage the pump.
11.What can occur when pumping at a low residual pressure while being supplied by other apparatus? (339)
A.Cavitation of the pump
B.Friction loss becomes too significant to overcome
C.Firefighters may be unable to handle the supply hose
D.Intake pressure from the supply source may be reduced to a point that may damage the pump
A.Cavitation of the pump
12.During pumping operations, driver/operators should maintain a residual pressure on the master intake gauge: (340)
A.of at least 10 psi (70 kPa).
B.of at least 20 psi (140 kPa).
C.that is exactly 40 psi (280 kPa).
D.between 20 psi (140 kPa) and 40 psi (280 kPa).
B.of at least 20 psi (140 kPa).
13.Which statement about hydrant selection is MOST accurate? (340)
A.Any hydrant that is near the incident scene is a good choice.
B.Hydrants that appear older than ten years should not be used.
C.The closest hydrants are always the best choice because of their location.
D.The closest hydrants may not be the most prudent choice because of safety or fire fighting needs.
D.The closest hydrants may not be the most prudent choice because of safety or fire fighting needs.
14.Which is a characteristic of “dead end mains” when referring to hydrants? (340)
A.Have greater water pressure
B.Receive supply from several directions
C.Have smaller amounts of sedimentation, deterioration
D.Contain higher amounts of sediment and deterioration
D.Contain higher amounts of sediment and deterioration
15.Which hose lay is made from the hydrant to the fire location? (341)
A.Simple lay
B.Source lay
C.Forward lay
D.Reverse lay
C.Forward lay
16.What is the purpose of a four-way hydrant valve in making a lay? (341)
A.Allows for as many supply lines as necessary
B.Enables firefighters to more easily turn on/off the main control valve
C.Allows the driver/operator to configure multiple types of lays easily and efficiently
D.Allows a second arriving pumper to be connected without interrupting the flow of water to the original supply line
D.Allows a second arriving pumper to be connected without interrupting the flow of water to the original supply line
17.Which hose lay is made from the fire to the water source? (344)
A.Simple lay
B.Source lay
C.Reverse lay
D.Forward lay
C.Reverse lay
18.Which hose lay would be used when the driver/operator first reports to an incident location in order to size up the scene before laying a supply line? (344)
A.Simple lay
B.Source lay
C.Reverse lay
D.Forward lay
C.Reverse lay
19.After transitioning to an external water supply, the driver/operator should: (345)
A.open the tank-to-pump valve.
B.close the tank-to-pump valve.
C.open the four-way hydrant valve.
D.close the four-way hydrant valve.
B.close the tank-to-pump valve.
20.In general, pumps supplying a relay operation or master stream are used to supply large amounts of water, and therefore require: (346)
A.multiple settings of the transfer valve.
B.use of a series (pressure) setting of the transfer valve.
C.use of a parallel (volume) setting of the transfer valve.
D.the transfer valve to switch between series and parallel.
C.use of a parallel (volume) setting of the transfer valve.
21.When a pumper is connected to a hydrant and not discharging water, pressure shown on intake gauge is: (347)
A.static pressure.
B.residual pressure.
C.atmospheric pressure.
D.the pressure from previous operations.
A.static pressure.
22.When a pumper is discharging water, the intake gauge displays: (347)
A.static pressure.
B.residual pressure.
C.atmospheric pressure.
D.average or median pressure.
B.residual pressure.
23.Which determines the additional water available from a hydrant? (347)
A.Difference between static pressure and residual pressure
B.Difference between friction loss and current water pressure
C.Difference between static pressure and atmospheric pressure
D.Sum of static pressure, residual pressure, and atmospheric pressure
A.Difference between static pressure and residual pressure
24.Which method is used to determine additional water available from a hydrant? (350)
A.Division method
B.Addition method
C.Second-digit method
D.Squaring-the-lines method
D.Squaring-the-lines method
25.When shutting down the hydrant, why should all changes in flow be made smoothly? (351)
A.To limit the amount of water that is likely to be wasted
B.To ensure that attack lines don’t suddenly lose pressure
C.To avoid surprising handline crews with sudden changes
D.To avoid water hammer and pressure surges on water systems
D.To avoid water hammer and pressure surges on water systems
26.In drafting operations, the amount of friction in the intake hose is MOST affected by the: (352)
A.ambient temperature.
B.size of the static water source.
C.size of the onboard water tank.
D.diameter and length of the hose.
D.diameter and length of the hose.
27.During drafting operations, the ability to overcome losses in pressure is: (352)
A.not limited by any factors.
B.limited only by available equipment.
C.limited to previous atmospheric pressures.
D.limited to atmospheric pressure at sea level.
D.limited to atmospheric pressure at sea level.
28.During drafting operations, what can occur when water is being discharged faster than it is coming into the pump? (354)
A.Cavitation
B.Pressure loss
C.Water hammer
D.Pressure surge
A.Cavitation
29.Which is an indication that a pump is cavitating? (354)
A.Pump does not make any working noises
B.A decrease in the throttle will decrease discharge pressure
C.An increase in the throttle will increase discharge pressure
D.Lack of reaction on the pressure gauge to increases in the throttle
D.Lack of reaction on the pressure gauge to increases in the throttle
30.Which is the first consideration in establishing a drafting operation? (354)
A.Pumper size
B.Site selection
C.Available personnel
D.Potential growth of the fire
B.Site selection
31.Which is the MOST important factor in choosing a draft site? (355)
A.Weather conditions
B.Accessibility of water
C.Type or quality of water
D.Amount of water available
D.Amount of water available
32.In order for a pumper to approach its rated capacity using a traditional strainer, there must be at least _____ of water over the strainer. (355)
A.12 inches (300 mm)
B.24 inches (600 mm)
C.36 inches (900 mm)
D.42 inches (1 050 mm)
B.24 inches (600 mm)
33.How does water temperature affect drafting? (356)
A.Hot water affects drafting; cold water has no impact .
B.Cold water affects drafting; hot water has no impact.
C.Water temperatures have no adverse impact on drafting.
D.Water temperatures may adversely impact the ability of the pump to reach capacity.
D.Water temperatures may adversely impact the ability of the pump to reach capacity.
34.What should be done each time nonpotable water is pumped through an apparatus? (356)
A.Nothing needs to be done to the pump and piping system.
B.Pump and piping should be thoroughly flushed with fresh water soon afterwards.
C.Pump and piping should be drained and allowed to totally dry out before the next use.
D.Pump and piping should be thoroughly flushed with special cleaning solution soon afterwards.
B.Pump and piping should be thoroughly flushed with fresh water soon afterwards.
35.To create an effective fire stream during drafting operations, a lift of no greater than _____ is recommended. (357)
A.10 feet (3 m)
B.20 feet (6 m)
C.30 feet (9 m)
D.40 feet (12 m)
B.20 feet (6 m)
36.After a drafting site has been selected, which is a step in connecting to the pump? (358)
A.Connect the intake hose while on the ground.
B.Reposition apparatus once all connections are made.
C.Engage pump as soon as initial connections are made.
D.Couple strainer and required lengths of hose and make them airtight.
D.Couple strainer and required lengths of hose and make them airtight.
37.When drafting, what should be done when positioning the intake hose if the bottom slopes steeply from the water’s edge? (358)
A.Place a roof ladder in the water and lay intake hose on it.
B.Suspend strainer off the bottom by tying it to an anchor point.
C.Place salvage covers in the water and lay intake hose on top of the covers.
D.Place a shovel or other flat metal object on the top to protect the strainer.
A.Place a roof ladder in the water and lay intake hose on it.
38.When priming the pump and beginning drafting operations, a two-stage pump: (358)
A.must have the transfer valve in the series (pressure) position.
B.must have the transfer valve in the parallel (volume) position.
C.can have the transfer valve in either the series (pressure) or parallel (volume) position.
D.must initially have the transfer valve in the series (pressure) position but then switch to the parallel (volume) position.
B.must have the transfer valve in the parallel (volume) position.
39.If an apparatus features a vacuum-type primer, the engine rpm should be kept: (359)
A.below 800 rpm.
B.between 1000 and 2000 rpm.
C.as high as possible without overtaxing the engine.
D.as low as possible without causing the engine to stall.
D.as low as possible without causing the engine to stall.
40.What is the most common cause of an inability to prime? (359)
A.Engine speed (rpm) is too high
B.Inexperience of personnel using the equipment
C.Equipment used for priming is incompatible or outdated
D.An air leak that prevents primer from developing enough vacuum to successfully draft water
D.An air leak that prevents primer from developing enough vacuum to successfully draft water
41.Which problem is MOST likely to cause an inability to prime? (359)
A.Lift is too low
B.Engine speed (rpm) is too low
C.Engine speed (rpm) is too high
D.Excess fluid in the priming reservoir
B.Engine speed (rpm) is too low
42.After successfully priming the pump, the throttle setting should: (360)
A.slowly be decreased before attempting to open any discharges.
B.quickly be decreased before attempting to open any discharges.
C.slowly be increased before attempting to open any discharges.
D.quickly be increased before attempting to open any discharges.
C.slowly be increased before attempting to open any discharges.
43.Which is the MOST likely problem during drafting if the discharge pressure gauge begins to fluctuate with a corresponding loss of vacuum on the intake gauge? (360)
A.Blockage in the pump itself
B.Gauge readings are incorrect
C.Attempting to exceed capacity of the pump
D.Air is coming into the pump along with water
D.Air is coming into the pump along with water
44.What should be done first when preparing to shut down a drafting operation? (362)
A.Completely shut down engine
B.Slowly decrease engine speed to idle
C.Leave engine in the highest gear possible
D.Increase engine speed then quickly decrease engine speed
B.Slowly decrease engine speed to idle
45.When shutting down a drafting operation, why should the positive displacement primer be operated for several seconds until primer oil or fluid comes out of discharge from the priming pump? (362)
A.Ensures primer works efficiently
B.Aids in lubrication of priming pump
C.Avoids contamination of priming pump
D.Ensures fluid is removed from the priming pump
B.Aids in lubrication of priming pump
46.The automatic water supply for a sprinkler system is designed to supply: (362)
A.only one fire sprinkler at any given time.
B.all of the fire sprinklers at any given time.
C.a majority of the fire sprinklers at any given time.
D.only a fraction of total fire sprinklers at any given time.
D.only a fraction of total fire sprinklers at any given time.
47.When should occupancies with automatic sprinkler systems be identified? (362)
A.After initial incident call
BDuring preincident planning
C.During initial size-up of the scene
D.After incident action plan has been put into action
BDuring preincident planning
48.If a sprinkler system is to be supplied at the fire department connection and no specific information is available, the general guideline is to discharge _____ into the FDC. (363)
A.50 psi (350 kPa)
B.75 psi (525 kPa)
C.150 psi (1 050 kPa)
D.250 psi (1 750 kPa)
C.150 psi (1 050 kPa)
49.When supporting standpipe operations, fire attack crews should: (364)
A.use both house hose and attack lines.
B.avoid using the standpipe unless fire is growing.
C.bring attack lines to initiate standpipe operations.
D.use the house hose installed at standpipe connection.
C.bring attack lines to initiate standpipe operations.
50.Wet standpipe systems that contain water under pressure: (364)
A.will take at least 3-5 minutes before water flows freely.
B.must be charged with water from the fire department pumper.
C.may be used as soon as the hoseline is stretched and the valve closed.
D.may be used as soon as the hoseline is stretched and the valve opened.
D.may be used as soon as the hoseline is stretched and the valve opened.
51.Which statement about dry pipe systems is MOST accurate? (364)
A.It will take at least 5-10 minutes before water flows freely.
B.They may be used as soon as the hoseline is stretched and the valve opened.
C.They may be used as soon as the hoseline is stretched and the valve closed.
D.They must be charged with water from a source such as the fire department pumper.
D.They must be charged with water from a source such as the fire department pumper.
52.Friction loss in standpipes is generally: (365)
A.large regardless of flow.
B.small regardless of flow.
C.small unless flow is very large.
D.so variable that it cannot be correctly accounted for.
C.small unless flow is very large.
53.When a dry standpipe system is charged, water will be discharged: (365)
A.only in the area of the fire itself.
B.at all points regardless of position of valves.
C.at all points where caps are off and valve is open.
D.at all points where caps are on and valve is closed.
C.at all points where caps are off and valve is open.
54.What should a driver/operator do immediately upon indication that the water supply or pumping ability may be unattainable or interrupted? (366)
A.Notify officer or Incident Commander
B.Call for backup pumpers to arrive at the scene
C.Wait several minutes and see if the problem corrects itself
D.Attempt to correct the problem before notifying anyone
A.Notify officer or Incident Commander
55.Which is the MOST likely scenario if a supply line that was charged suddenly loses water? (366)
A.The supply line has burst.
B.Vandals have turned off the water supply.
C.The personnel operating the supply line are inexperienced.
D.It is just a momentary pressure change and water will return.
A.The supply line has burst.
56.Which is the MOST likely scenario if a supply line loses water but the supply line is intact? (366)
A.Vandals have turned off the water supply.
B.The hydrant or water main has failed.
C.The personnel operating the supply line are inexperienced.
D.It is just a momentary pressure change and water will return.
B.The hydrant or water main has failed.
1.From what location is the procedure for making the pump operational performed for most apparatus? (336)
A.Cab of the vehicle
B.Location varies depending upon incident
C.Outside the vehicle near the driver’s door
D.Anywhere driver/operator is located with remote controls
A.Cab of the vehicle
2.What is used to prevent the pump from overheating during fire attack if water is not flowing for an extended period of time? (338)
A.Rotary valve
B.Piston gear valve
C.Inline gated valve
D.Booster cooling valve
D.Booster cooling valve
3.What residual pressure should be maintained on the master intake gauge during pumping operations when operating from a pressurized supply source? (340)
A.At least 10 psi (70 kPa)
B.At least 20 psi (140 kPa)
C.At least 30 psi (210 kPa)
D.At least 40 psi (140 kPa)
B.At least 20 psi (140 kPa)
4.When is residual pressure shown on the intake gauge of a pumper that is connected to a hydrant? (347)
A.When a pumper is discharging water
B.When a pumper is totally shut down
C.When a pumper is not discharging water
D.When a pumper is transitioning to another water source
A.When a pumper is discharging water
5.One indication that a pump is cavitating is that: (354)
A.the pressure gauge will rise suddenly and continue rising.
B.increases in the throttle cause significant reaction on the pressure gauge.
C.the pump itself will become extremely quiet with no apparent sounds at all.
D.the pump itself may make noises described as sounding like gravel passing through the pump.
D.the pump itself may make noises described as sounding like gravel passing through the pump.
6.What should be done if priming has not been achieved within the acceptable time period for a particular situation? (359)
A.Mutual aid resources called to the scene
B.Wait 5-10 minutes and try priming again
C.Priming should continue until a prime is achieved
D.Priming attempt should be stopped and the problem traced
D.Priming attempt should be stopped and the problem traced
7.An inability to prime is MOST likely caused by: (359)
A.lift that is too low.
B.inexperienced personnel.
C.engine speed (rpm) that is too high.
D.insufficient fluid in the priming reservoir.
D.insufficient fluid in the priming reservoir.
8.Where is a driver/operator MOST likely to find suggested discharge pressures for a sprinkler system? (363)
A.Printed on a plate at the FDC
B.Nearest utility pole to the FDC
C.Building entrance layout diagram
D.On the sidewalk/concrete near the FDC
A.Printed on a plate at the FDC
9.When initiating standpipe operations, why should fire attack crews bring attack lines when house hose is installed? (364)
A.Attack lines are used alongside the house hose.
B.Attack lines are used to supplement the house hose.
C.Fire department will have to replace any house hose that they use during operations.
D.House hose has not been manufactured or tested to the same standard as fire department hose.
D.House hose has not been manufactured or tested to the same standard as fire department hose.
10.Which standpipe system must be charged with water from a source such as the fire department pumper? (364)
A.Dry pipe systems
B.Wet pipe systems
C.Combination pipe systems
D.Any type of pipe system in an occupancy
A.Dry pipe systems
11.Explain the difference between a forward lay and a reverse lay. (341-344)
A forward lay involves laying the hose from the fire hydrant to the fire location and a reverse lay involves laying the hose from the fire scene to the water source.
12.During drafting operations, what are the three primary factors that determine friction loss in the intake hose? (352)
Diameter and length of the hose
• Intake strainer
• Any adapters in use
13.During drafting operations, what are the main considerations when selecting a drafting site? (355)
Amount of water available
• Type or quality of water
• Accessibility of water
14.Who should a driver/operator notify if there is an indication that the water supply or pumping ability may be unattainable or interrupted? (366)
Officer or Incident Commander
15.When a supply line that has been charged suddenly loses water during drafting operations, what are some possible causes? (366)
Supply line may have burst
• A vehicle may have parked on it
• A hydrant or water main may have failed
• A portable folding tank or tender may need to be replenished
