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PADO AFD final
| Question | Answer |
|---|---|
| Who is responsible for ensuring seat belts are worn while an apparatus is in motion? | Company officer |
| When drafting, water is forced in and continues to rise until the pump is full of water or: | Pressure within the pump and intake hose equals atmospheric pressure |
| To maintain control when in an acceleration skid, the driver/ operator should not apply brakes, but instead ease of the accelerator, and: | Straighten out the front wheels as vehicle begins to respond. |
| Another method of calculating a flow rate for a specific tender rates the water supply of fire departments that protect rural areas and measures data by: | Using a series of formulas originally developed by the insurance services office (ISO). |
| The minimum amount of foam solution that must be used on a fire pumper per minute per square foot (square meter) of fire is called the: | Application rate |
| Which of the following statements about the flowmeter is MOST accurate? A) It relieves you from relying on calculations based on friction loss, elevation pressure, and length of hoseline. B) It is generally accurate within 10% of actual water flow. C) I | It relieves you from relying on calculations based on friction loss, elevation pressure, and length of hoseline. |
| Which is the preferred type of hose for making hydrant connections? | Large diameter intake hose. |
| Which nozzle may also be referred to as a distributor? | Cellar nozzle. |
| Which of the following is an advantage provided by vacuum tenders? | A vacuum tender can self fill from a static water source at a rate of up to 2000 gpm (8000 L/min). |
| The fourth principle of pressure states that the pressure of a liquid in an open vessel is: | Proportional to its depth. |
| According to A711.1, roadway incidents, which of the following is NOT a factor which should be taken into account when determing apparatus placement? A) scene safety saturation B) traffic speed C) Weather conditions D) Hills and curves | A) Scene safety saturation |
| What zone is also known as the yellow zone? | Warm zone |
| The most common style of portable tank | Folds and is mounted and removed from the apparatus, as with a ground ladder. |
| According to A711.1, roadway incidents, for residential medical calls: | Apparatus should leave the front of the address open for medic units and park at a slight blocking angle. |
| A pitot tube is required if a _______ is not used during performance testion. | Flowmeter. |
| According to A108.1, Parking garage fires, the second pumper apparatus should locate and position near the: | FDC |
| Which of the following are generally found on skid-mounted pumps or older fire apparatus and require a great deal of maintenance to remove carbon deposits? A)air primers B)exhaust primers C)vacuum primers D)positive displacement primers | Exhaust primers |
| The condensed Q formula FL=Qsquared is used with: | 3 inch hose |
| When positioning to support aerial apparatus, pumpers providing water supply for elevated stream operations should position: | As closely to aerial apparatus as practical. |
| Which pieces of equipment are evaluated for air leaks using a vacuum test? | Priming device, pump, and intake hose |
| Which of the following statements about inspections to detect deficiencies or failure of the fire pump or other fire suppression equipment is MOST accurate? | Some items should be checked daily, but other checks may be performed weekly. |
| Why does the third principle of friction loss demonstrate the advantage of larger size hose? | For the same discharge, friction loss varies inversely as the 5th of diameter of hose. |
| When responding to emergencies, apparatus should: | Turn on headlights as part of the emergency response. |
| Which of the following statements about friction loss is MOST accurate? A)Friction loss in a water system increases as length of hose or piping increases. B)Flow pressure is greatest at the farthest point in the system. C) Flow pressure will always be low | Friction loss in a water system increases as length of hose or piping increases. |
| What will an AFD driver do when approaching an intersection with a GREEN light? B201.5 3.B.5 | Cover the brake and account for all traffic before proceeding. |
| Which of the following statements about batch mixing is MOST accurate? A)It is potentially inaccurate B)It is very complex C)It is most effective during large incidents D)It uses the pressure of a water stream to draft foam. | It is potentially inaccurate |
| Which of the following receives water from the source pumper, raises the pressure, and supplies water to the next apparatus? A)Relay pumper B)Primary pumper C)Secondary pumper D)Water supply pumper | Relay pumper |
| The only method that may be used to control a loose (wild) hose line are? B108.1 | Closing a valve or using a hose clamp |
| Which of the following statements about excessive speed and braking is MOST accurate? | Excessive speed can cause difficulties when braking. |
| Which pump may be offered by some manufacturers in a rear-engine design driven off the engines flywheel? | Power-take-off (PTO drive) |
| The pump discharge pressure should be calculated and set based on: | Hoseline with the greatest pressure requirements. |
| What should a driver/operator do when a piece of equipment onboard is found broken, defective, or in need of any type of repair? | Follow the established policy of the AHJ for documenting, reporting, and following up on status of repair |
| Driver/operator must perform practical driving exercises: | With each type of apparatus they are expected to drive. |
| According to NFPA1901, fire department pumpers should have a minimum pump capacity of: | 750 gpm (3000 l/min) |
| You are the 3rd arriving engine company at a high rise alarm. Your officer assumes water supply duties and you must supplement the sprinkler system and establish a hydrant water supply. This is usually accomplished by _____? A201.3 | Connecting 2 3inch hoses to the FDC and then laying out to a nearby hydrant. |
| Which apparatus is MOST likely to have a pump and roll system that allows apparatus to be driven while discharging water? | Wildland fire apparatus. |
| When pressure reliefe valves are preset to allow a predetermined amount of pressure into the fire pump and then the incoming pressure exceeds the preset level, the valve will? | Open and dump excess pressure/water until water is entering the pump at the correct pressure. |
| When referring to pump wear rings and packing, why must very close tolerances be maintained between pump casing and the hub of the impeller? | Any increase in opening lessens the effectiveness of the pump. |
| Who is in charge of performing pump certification tests? | Independent testing organizations. |
| When flow testing hose and you do not have a drilled gate valve to avoid a whipping hose line you should ____? B108.1 | Adjust the discharge gate valve to a near closed position |
| Which of the following refers to a circulating feed or looped line? | When a fire hydrant receives water from two or more directions. |
| Which of the following statements about the driver/operator and organization in civil or criminal cases is most accurate? | Both the driver/operator and organization can be held responsible. |
| What shall and AFD driver do when approaching a red light or stop sign? B201.5 | Apparatus shall come to a complete stop prior to entering the intersection. |
| When giving hand signals for backing apparatus, hand signals should be: | Done in a slow, exaggerated motion. |
| When using a manifold during pump operations, we must pay close attention to the flow valves because ____? B108.1 | Vibration and or large flows tend to close the valves. |
| Most parking garages will have a standpipe system, usually a _____ A108.1 | Dry system. |
| Which of the following must all riders be doing in addition to being seated within the cab or body, before the apparatus is put into motion? | Wearing seat belts. |
| Why don't we reduce our response to code 1 when responding to box alarms in larger structures? B202.3 | They may contain hidden fire that we cannot see due to sheer size of the building. |
| As pump operators, when we charge the handlines for use by firefighter we must ensure ____? | The hose lay is complete and personal are ready for water. |
| A characteristic of water as an extinguishing agent is that it: | Has a high surface tension that makes it somewhat difficult to soak into dense materials. |
| Which of the following statements about elevation pressure in relay operations is MOST accurate? | Elevation pressure is not affected by the amount of water being moved, only by the topography. |
| After transitioning to an external water supply, the driver/operator should: | Close the tank-to-pump valve. |
| When the apparatus is operated in a stationary position during a wildland fire attack, it should be placed in an area that: | Affords maximum protection from heat and flames |
| In a modern apparatus, rotary pumps would MOST likely be used as which of the following types of pumps? | As low volume, high-pressure pumps |
| Who is the best PADO instructor at training? | All of the above |
| When driving downhill, which of the following should be done to prevent engine damage? | Limit downhill speed to lower maximum rpm. |
| When performing a walk-around inspection, the driver/operator begins inspection at the: | Drivers door on the cab and works around apparatus in a clockwise manner. |
| According to A711.1 roadway incidents, first in apparatus will normally be positioned: | To block the lane the incident is in plus one additional lane for a buffer zone. |
| Which of the following is an adverse effect to over cleaning fire apparatus? | May remove lubrication from chassis, engine, pump, and underbody. |
| What is MOST likely to happen if an apparatus fails to comply with bid specifications? | The apparatus will be rejected by the purchaser. |
| Which of the following Statements best identifies when an overhead pipe should be used during water tender top-fill procedures? | When there is no other way of filling through the top opening. |
| Which skill or ability is MOST needed to connect an intake hose to a hydrant? | Physical fitness. |
| Which of the following typically contains many millions of gallons of water and may be found on large commercial or industrial properties? | Ground reservoir |
| If one AFD apparatus wants to pass another AFD apparatus, what must happen first? B201.5 | The passing apparatus must recieve permission from the apparatus to be passed. |
| According to A108.1, Parking garage fires, A _____ foot section of ____ inch hose should be used to connect the pumper to the aerial. | 50 ft, 3 inch |
| Which of the following is the most common type of valve and permits the full flow of water through a line with a minimum friction loss? | Ball-type valve. |
| Which of the following BEST describes when it is recommended that wheels be chocked? | Every time the driver/operator exits the cab. |
| To calculate friction loss when using multiple hoselines of unequal length, a driver/operator must: | Calculate friction loss for each hose line supplied by seperate discharges to individual nozzles. |
| It is generally recommended that intake relief valves be set to open when intake pressure rises more than: | 10 psi above the necessary operation pressure. |
| What is the speed limit when driving code 3? B201.5 | 10 mph over the posted speed limit on all streets regardless of street type |
| A guideline when developing a customized pump chart is to: | Round discharge pressure calculations to nearest 5 psi. |
| Which of the following statements about properties of water is most accurate? | Water is considered to be virtually incompressible. |
| When a mobile water supply apparatus is parked in close proximity to the fire scene and pumpers are using its supply during suppression operations, the water tender is being used: | As a stationary reservoir or nurse tender. |
| Which manner of producing fog streams occurs by deflecting water around an inside circular stem in the nozzle? | Periphery-deflected streams |
| Attack pumpers equipped with an adjustable intake relief valve should be set: | Between 50 and 75 psi to establish a stable operating condition. |
| Pump testing should be performed: | Both acceptance tests and certification tests. |
| When the pump is in operation, which of the following is a responsibility of the driver/operator? | Monitor all gauges associated with the engine as well as with the operation of the fire pump. |
| Which type of apparatus is often divided into 3 general categories: major fire fighting vehicles, rapid intervention vehicles, and combined agent vehicles? | Aircraft rescue and fire apparatus. |
| Which of the following is the customery formula for nozzle reaction for a fog stream nozzle? | NR=0.0505xQx (squareroute)NP |
| What are the appropriate safety techniques when using or working around a pressurized deck gun? B108.1 | All of the above |
| Any operation that causes salt or dirty water to be drawn into the pump requires the pump to be flushed with: | Clean fresh water after pumping operation is complete. |
| According to A108.1,Parking garage fires, upon arrival, the first in pumping apparatus should be positioned: | To allow the firefighters easy access to the stairwell nearest the fire. |
| High-rise procedures may need to be adjusted when operating in a building that is not a true high-rise. One consideration for pump operators is ____? A201.3 | The FDC must be supplied before hoselines from the standpipe systems are used for fire attack. |
| Electronic hydraulic calculators may be handheld or may be: | Permanently affixed to a location near the pump operators panel. |
| What term is used to define pumping apparatus smaller than a full-size pumper? | Mini-pumper |
| Which of the following foam proportioner tests discharges foam at a predetermined flow into a calibrated tank for a specific period of time? | Foam concentrate pump discharge volume method. |
| What is the speed limit AFD apparatus must obey in school zones? B201.5 | 20 mph |
| Foam proportioning equipment testing should occur before being placed in service and: | Periodically thereafter |
| On apparatus equipped with a diesel particulate filter (DPF), which of the following lights up to indicate that the DPF is loading up with soot? | DPF indicator. |
| When operating an in-line foam eductor, which of the following operating guidelines must be followed to achieve properly proportioned finished foam? | The flow in gallons per minute through the eductor must not exceed its rated capacity. |
| Which of the following is determined by the rate at which natural bacteria can degrade foam? | Biodegradability. |
| If a jurisdiction is performing tests using equipment they own in order to achieve more accurate results, the testing should be conducted: | Using actual hose that will be used during firefighting operations. |
| Which of the following statements about inspecting a parked apparatus is MOST accurate? | Whenever an apparatus is parked, chock its wheels. |
| According to A108.1, parking garage fires, anytime a pumping apparatus pumps into the sprinkler system it should be supplied by _____ and _____. A108.1 | A hydrant and the initial pressure should be 150 psi at the FDC unless there is a sign indicating a higher pressure. |
| When conducting pump performance testing using a static water source, how deep must the water be? | 4 ft. |
| Which of the following statements about the driver/operator and maintenance responsibilities is MOST accurate? | The driver/operator is often able to correct minor deficiencies. |
| In what situation would tandem pumping become necessary at a high-rise alarm? | The sprinkler or standpipe system requires 225 psi or more pressure. |
| Although it is not always possible, why is it advantageous to have roadways closed to non-emergency vehicles during water shuttle operations? | To lesson traffic congestion and reduce the possibility of collision. |
| Which of the following displays engine speed in revolutions per minute? | Tachometer |
| When may a 1st due officer reduce other units to code 1? B202 | When they arrive to a 1 or 2 story residence or a small commercial bldg. And nothing is showing. |
Created by:
E.Perez