1.
What is the maximum weight allowed in the platform when flowing from the master stream devise?
Correct Answer
B. 500 lbs
Explanation
When flowing water, the weight rating in the platform is reduced by half.
2.
When flowing a 2 1/2" pre-connect from Truck 1, what is the pump discharge pressure to obtain 250gpm at the nozzle?
Correct Answer
C. 95 psi
Explanation
The PDP is 95psi because the nozzle on Truck 1 is a Chief 250gpm@75psi. With that, plus 6-7psi FL per 50' section =95psi
3.
How many ladders, including the aerial devise, are carried on Truck 1?
Correct Answer
D. 8 ladders
Explanation
35' 2 section, 28' 2 section, 20' roof, 2 16' roof, 2 10 attic, and the 100' aerial
4.
What type and size is the generator on Truck 1?
Correct Answer
B. Hydraulic Drive-Onan 10kw
Explanation
Located directly above the pump is a hydraulic pto driven Onan 10 kw generator.
5.
Where is the sight glass that indicates the level of hydraulic fluid in the system that is responsible for ladder and outrigger operation?
Correct Answer
A. Inside the front left (driver side) outrigger housing
Explanation
The correct answer is Inside the front left (driver side) outrigger housing. This is where the sight glass is located that indicates the level of hydraulic fluid in the system responsible for ladder and outrigger operation.
6.
What is the smallest diameter smooth bore stack-tip in the platform designed to be used with the master stream appliance?
Correct Answer
B. 2"
Explanation
In the platform there are two differnet size tips, the smallest of the two is a 2" tip.
7.
When flowing a smooth bore master stream with a 2 1/2" tip, how many gpm will this provide when the nozzle pressure is 80 psi.
Correct Answer
D. 1650 gpm
Explanation
29.7 x D2 x sq. root of pressure = gpm
8.
What is the water tank capacity for Truck 1?
Correct Answer
D. 400 gallon
Explanation
Truck 1 has a water tank capacity of 400 gallons. This means that the tank can hold up to 400 gallons of water.
9.
What is the pump capacity, and how many stages does the pump on Truck 1 have?
Correct Answer
D. 1500 gpm, 2 stage
Explanation
Waterous 1500gpm, 2 stage pump. Meaning that the pump has a pressure stage and a volume stage, 2 impellers.
10.
What is the maximum lateral reach of Truck 1?
Correct Answer
D. 93 ft
Explanation
93' is the actual length of the ladder. The additional height, that designates 100', is gained from the height of the ladder base from the ground which is approx. 7 feet.
11.
Where is the EPU controls for the outriggers?
Correct Answer
D. In the ladder belt compartment
Explanation
The controls are in the "ladder belt compartment", otherwise known as the right rear compartment. There is a compartment door in the middle of that compartment.
12.
When operating at an emergency scene, where is it best to position Truck 1 when the structure is more than five stories?
Correct Answer
A. Inside the Engine Company, closest to the structure
Explanation
When operating at an emergency scene with a structure that is more than five stories, it is best to position Truck 1 inside the Engine Company, closest to the structure. This positioning allows Truck 1 to be in a strategic location to provide support and access to the structure. Being inside the Engine Company ensures that Truck 1 is well-coordinated with the other responders and can efficiently carry out its tasks. Placing it closest to the structure enables quick and easy deployment of equipment and personnel, maximizing their effectiveness in responding to the emergency.
13.
When multple victims are in need of rescue from a structure, which are of the highest priority?
Correct Answer
D. Victims closest to fire
Explanation
When multiple victims are in need of rescue from a structure, the highest priority should be given to the victims closest to the fire. This is because they are at the greatest risk of immediate danger and need to be rescued as quickly as possible to prevent further harm.
14.
When defining the term "scrub area", what description best applies?
Correct Answer
A. Total area the aerial devise can reach
Explanation
The term "scrub area" refers to the total area that an aerial device can reach. This includes the base section as well as any extensions or attachments that allow the device to reach higher or farther. It does not refer to the specific area that needs to be cleaned or any other unrelated factors. Therefore, the best description that applies to the term "scrub area" is the total area the aerial device can reach.
15.
What is the maximum negative degree that the aerial devise of Truck 1 can reach?
Correct Answer
E. -5 degrees
Explanation
At maximum extension and maximum descend the aerial devise will reach -5 degrees
16.
What type of heat transfer is responsible for heat/fire spread from room to room, and also floor to floor?
Correct Answer
A. Conduction
Explanation
Conduction is the correct answer because it refers to the transfer of heat through direct contact between objects or substances. In the case of heat/fire spread from room to room and floor to floor, conduction occurs when the heat energy is transferred through the walls, floors, or ceilings of the building. This happens because the materials in the building conduct heat, allowing it to move from one area to another. Convection and radiation are not responsible for heat/fire spread in this scenario.
17.
When unburned, superheated combustible gases, are released during a fire they accumulate at the ceiling. At the ceiling level they mix with oxygen, reaching their flash point, igniting and move rapidly across the ceiling. What is this called?
Correct Answer
C. Flameover
Explanation
During a fire, when unburned, superheated combustible gases are released, they accumulate at the ceiling. At this level, they mix with oxygen and reach their flash point, causing ignition. This rapid ignition and movement of flames across the ceiling is known as flameover.
18.
Where should the platform position to facilitate a rescue in the safest manner for the victims?
Correct Answer
B. Platform rails even with the window sill
Explanation
The platform rails should be even with the window sill in order to facilitate a rescue in the safest manner for the victims. This means that the platform should be at the same height as the window sill, allowing for easy access and transfer of the victims from the window to the platform. By having the rails at the same level as the window sill, it minimizes the risk of accidents or injuries during the rescue process.
19.
The rate of reaction in a fire is roughly doubled for every ____ rise in temperature.
Correct Answer
B. 18 degrees F
Explanation
The rate of reaction in a fire is roughly doubled for every 18 degrees F rise in temperature. This means that as the temperature increases by 18 degrees F, the rate at which the reaction occurs also doubles. This relationship between temperature and reaction rate is known as the Arrhenius equation, which states that an increase in temperature leads to an increase in the rate of reaction.
20.
When raising the aerial devise to rescue victims, how should the platform approach the victims?
Correct Answer
B. From the top of the window, downward
Explanation
The platform should approach the victims from the top of the window, downward. This approach ensures that the platform can reach the victims efficiently and effectively. By starting from the top of the window, the platform can provide immediate assistance to the victims and safely lower them to the ground. Approaching from directly below the window or taking the fastest route may not allow for proper positioning and could potentially endanger the victims. Therefore, the most appropriate approach is from the top of the window, downward.
21.
What is the designed gpm flow for the water curtain located underneath the platform?
Correct Answer
D. 100 gpm
Explanation
The designed gpm flow for the water curtain located underneath the platform is 100 gpm.
22.
On the main ladder controls, where is the elevation/decent lever located?
Correct Answer
C. Far right
Explanation
The correct answer is "Far right." On the main ladder controls, the elevation/decent lever is located on the far right. This means that it is positioned towards the end of the control panel, opposite to the far left. The lever's location on the far right suggests that it is easily accessible and can be operated conveniently while using the ladder.
23.
When flowing 1500 gpm or more from the ladder pipe of Truck 1, what is the maximum lateral range of motion (in degrees) from center line of the ladder?
Correct Answer
D. 45 degrees
Explanation
By positioning the ladder pipe at more than a 45 degree angle, this subjects the ladder to unsustainable lateral loads.
24.
What is the height of Truck 1?
Correct Answer
B. 11' 10.25"
Explanation
The height of Truck 1 is 11' 10.25".
25.
When supplying an FDC, what is the maximum pressure allowed to be pumped into the system?
Correct Answer
D. 200 psi
Explanation
150 psi is the initial pressure required, before calculations of actual pressure needed. 250 psi is the pressure at which the system is tested.
26.
The generator should never be engaged when the engine rpm is more than_______ ?
Correct Answer
1000
1000rpm
1000 rpm
one thousand rpm
Explanation
If continually engaged above 1000 rpm, damage to the pto may occur.
27.
When positioning the aerial ladder for maximum reach on a structure, where should the turn table be positioned?
Correct Answer
B. Near a corner of the structure
Explanation
By positioning at the corner of a structure, the aerial devise will most likely be able to reach two sides of the structure.
28.
What is the largest smooth bore stack-tip available on Truck 1?
Correct Answer
B. 2 1/2"
Explanation
The largest smooth bore stack-tip available on Truck 1 is 2 1/2".
29.
What is the natural law of physics called that specifies that heat will tend to move from a hot substance to a cold substance?
Correct Answer
A. Law of Heat Transfer
Explanation
The natural law of physics that specifies that heat will tend to move from a hot substance to a cold substance is known as the Law of Heat Transfer. This law explains the fundamental principle of how heat energy is transferred between different objects or substances, with heat always flowing from a higher temperature region to a lower temperature region. It is an important concept in understanding various phenomena related to heat and temperature, such as conduction, convection, and radiation.
30.
When flowing 1500 gpm or more from the ladder pipe of Truck 1, what is the maximum vertical range of motion (in degrees) of the nozzle from center line of the ladder?
Correct Answer
A. 15 degrees
Explanation
When flowing 1500 gpm or more from the ladder pipe of Truck 1, the maximum vertical range of motion of the nozzle from the center line of the ladder is 15 degrees.
31.
Convection is best described by which of the following?
Correct Answer
A. Heat from gases or liquids
Explanation
Convection is the transfer of heat through the movement of gases or liquids. In this process, heat energy is transferred from one place to another by the movement of the fluid. This can occur through the circulation of air or the flow of water, for example. Convection is different from conduction, which involves heat transfer through direct contact, and radiation, which involves heat transfer through energy waves. Therefore, the correct answer is "heat from gases or liquids."
32.
When operating the aerial devise at any angle, what is the maximum tip load allowed when not flowing water?
Correct Answer
A. 1000 lbs
Explanation
The maximum tip load allowed when operating the aerial device at any angle without flowing water is 1000 lbs. This means that the device can safely support a load of up to 1000 lbs without any risk of tipping over or malfunctioning. It is important to adhere to this weight limit to ensure the safety and proper functioning of the aerial device.
33.
When measured at the ceiling level, at what temperature does flashover generally occur?
Correct Answer
D. 1000 degrees F
Explanation
Flashover generally occurs at a temperature of 1000 degrees F when measured at the ceiling level. Flashover is the point at which all combustible materials in a room reach their ignition temperature and ignite simultaneously, leading to a rapid and intense fire. At this temperature, the fire becomes self-sustaining and can quickly spread throughout the space. It is important for firefighters and other emergency responders to be aware of this temperature threshold to effectively manage and control fires.
34.
The aerial devise is able to withstand moderate lateral loads, such as being lowered into slowly moving water.
Correct Answer
B. False
Explanation
The aerial devise is not designed to withstand any lateral loads.
35.
What is the maximum amount of terrain grade that the outriggers of Truck 1 can correct?
Correct Answer
D. 5%
Explanation
The maximum amount of terrain grade that the outriggers of Truck 1 can correct is 5%. This means that the outriggers are capable of adjusting the truck's position on slopes or uneven terrain by up to 5% in order to maintain stability and prevent tipping over.
36.
What is the main advantage of using a roof ladder when venting a roof?
Correct Answer
E. To distribute weight over the width of the roof
Explanation
Using a roof ladder helps distribute weight evenly over the width of the roof. This is important because it reduces the risk of causing damage to the roof structure or falling through weak areas. By spreading the weight, the roof ladder provides stability and prevents concentrated pressure on a single spot, making it safer for the person venting the roof.
37.
A centrifugal pump is influenced most by which of the following factors?
Correct Answer
D. The amount of incoming pressure
Explanation
The amount of incoming pressure is the most influential factor on a centrifugal pump. This is because the pump relies on the incoming pressure to create the necessary force to move the fluid through the system. If the incoming pressure is too low, the pump may not be able to generate enough force to effectively move the fluid. On the other hand, if the incoming pressure is too high, it can put excessive strain on the pump and potentially cause damage. Therefore, maintaining the correct incoming pressure is crucial for the proper functioning of a centrifugal pump.
38.
On a flat roof, what is the best example that the roof is compromised?
Correct Answer
D. "elevating" roof vents and fixtures
Explanation
Noticing that the roof vents and fixtures are increasing in height may be an indication that the surface of the flat roof is sinking, or becoming unstable.
39.
The term "master stream", is any stream that produces more than _____ gpm.
Correct Answer
A. 300 gpm
Explanation
A "master stream" refers to a high-capacity water stream used in firefighting operations. It is typically produced by large diameter hoses or specialized firefighting equipment. The term "master stream" is used when the stream produces more than 300 gallons per minute (gpm) of water. This high flow rate is necessary to effectively combat large fires and deliver a significant amount of water to the fire scene. Therefore, the correct answer is 300 gpm.
40.
In the early stages of fire, what is the most common form of fire spread?
Correct Answer
A. Conduction
Explanation
In the early stages of fire, the most common form of fire spread is through conduction. Conduction occurs when heat is transferred directly from one object to another through direct contact. In the case of fire, this means that heat is transferred from the burning material to nearby objects through physical contact. This can cause the fire to spread rapidly, especially if the nearby objects are flammable. Convection and radiation are also forms of heat transfer, but they are not as common in the early stages of fire spread.
41.
When it is required to "short jack" the outriggers, what degree of rotation from center line is the truck able to work from?
Correct Answer
A. 5%
Explanation
The correct answer is 5%. When it is necessary to "short jack" the outriggers, the truck is able to work from a rotation of 5% from the center line. This means that the outriggers can be rotated 5% away from the center line of the truck in order to stabilize it during operations.
42.
Per NFPA, and the test standards applied to Truck 1, at what pressure will the pump deliver 100% of its capacity?
Correct Answer
B. 150 psi
Explanation
According to the National Fire Protection Association (NFPA) and the test standards for Truck 1, the pump will deliver 100% of its capacity at a pressure of 150 psi.
43.
On a smooth bore handline, what is the maximum nozzle pressure?
Correct Answer
D. 65 psi
Explanation
The maximum nozzle pressure on a smooth bore handline is 65 psi. This means that the water pressure at the nozzle should not exceed 65 pounds per square inch. Exceeding this pressure could lead to difficulties in handling the hose and nozzle, as well as potential damage to equipment or injury to personnel.
44.
Per Pierce, what is the maximum wind speed that the aerial devise of Truck 1 can withstand?
Correct Answer
D. 50 mpH
Explanation
According to Pierce, the maximum wind speed that the aerial device of Truck 1 can withstand is 50 mph.
45.
What is the best example of a roof structure that is compromised?
Correct Answer
D. Sagging decking boards
Explanation
Sagging decking boards can be considered as the best example of a compromised roof structure. When the decking boards sag, it indicates that they have weakened and are no longer able to support the weight and stress placed on them. This compromises the overall integrity and stability of the roof structure, making it vulnerable to further damage or collapse.
46.
If the override system is used to deploy the ladder from the bed without the use of outriggers, after releasing the override switch, the safety systems reengage
Correct Answer
B. False
Explanation
The explanation for the given answer is that if the override system is used to deploy the ladder from the bed without the use of outriggers, after releasing the override switch, the safety systems do not reengage. This means that the ladder may not be properly secured and could pose a safety risk. Therefore, the statement is false.
47.
What is the term used to define the maximum amount of water that is able to pass through a given diameter of hose?
Correct Answer
A. Critical velocity
Explanation
The term used to define the maximum amount of water that is able to pass through a given diameter of hose is critical velocity. Critical velocity refers to the speed at which the flow of water transitions from smooth to turbulent, causing the maximum amount of water to pass through the hose.
48.
At what pressure does the air braking system self lock on Truck 1?
Correct Answer
B. 40 psi
Explanation
The air braking system on Truck 1 self locks at a pressure of 40 psi. This means that once the pressure in the system reaches 40 psi, the brakes will engage and lock automatically. This is an important safety feature that helps prevent the truck from rolling or moving unintentionally.
49.
While at the turntable a ventilation crew requests the platform to be tilted, where is the operation performed from?
Correct Answer
E. At the sub-controls beneath the main control panel
Explanation
The operation of tilting the platform is performed from the sub-controls beneath the main control panel. This means that the controls for tilting the platform are located below the main control panel, allowing the operator to easily access and perform the operation.
50.
What are the working angles allowed by Truck 1?
Correct Answer
D. -5 to 76 degrees
Explanation
Truck 1 allows for working angles ranging from -5 to 76 degrees. This means that the truck can operate on slopes or inclines between -5 and 76 degrees without any issues. It provides a wide range of working angles, allowing for flexibility in various working conditions.