General Practice Flashcards

Radio logs are usually kept in ___ order.

Answer: chronological

The 9-1-1 system is dedicated to genuine emergencies to ensure rapid response for life-threatening situations. If a nonemergency call comes in, the telecommunicator should efficiently transfer or refer the caller to the appropriate non-emergency services or provide an alternative contact number. This practice prevents tying up emergency lines and ensures critical resources remain available for true emergencies.

Standard search priorities of the ___ search include largest numbers, remainder of hazard zone, and exposures.

Answer: tertiary

While primary and secondary searches are fundamental, some advanced firefighting curricula or larger departments define a 'tertiary search' phase. This search typically occurs after the main fire is controlled and focuses on areas that were less immediately threatened but still within the hazard zone, or on adjacent exposures, to ensure all potential victims are found. It also includes a thorough check of areas where the 'largest numbers' of occupants might have been, ensuring no one was overlooked in earlier, more rapid searches.

Which of the following types of tools, used with a Halligan-type bar or other prying tool, is forced behind the ring and face of the lock cylinder until the wedging blades take a bite into the cylinder?

Answer: K-tool

The K-tool is a specialized forcible entry tool designed for removing lock cylinders. It is used in conjunction with a Halligan-type bar or other prying tool. The K-tool's wedging blades are forced behind the ring and face of the lock cylinder, allowing the cylinder to be pulled out and the lock mechanism defeated, thereby gaining entry.

Which of the following is NOT a recommended care and maintenance practice for tools with fiberglass handles?

Answer: Sand the handle if necessary to eliminate splinters.

Sanding a fiberglass handle is not a recommended care and maintenance practice because it can damage the protective outer coating and expose the fiberglass fibers. Exposed fibers can lead to splinters, weaken the handle's structural integrity, and make it more susceptible to further damage. Instead, damaged fiberglass handles should typically be repaired with resin or replaced.

If a nonemergency call comes in over 9-1-1 system, the telecommunicator should:

Answer: transfer or refer the customer to another number.

If a nonemergency call comes in over the 9-1-1 system, the telecommunicator's responsibility is to efficiently transfer or refer the caller to another appropriate non-emergency number. This ensures that emergency lines remain clear for genuine emergencies and that callers receive the correct assistance without tying up critical resources.

If backdraft conditions are apparent, attempt entry:

Answer: only after ventilation is complete.

Backdraft is an extremely dangerous phenomenon where a fire in an oxygen-depleted compartment rapidly ignites when fresh air is introduced. If backdraft conditions are apparent, firefighters must prioritize controlled ventilation to release superheated gases and introduce oxygen safely before attempting entry. Entering prior to complete ventilation risks a violent explosion, posing severe danger to personnel.

Which of the following methods of controlling and extinguishing a fire uses water for the extinguishment of smoldering fires?

Answer: Temperature reduction

Water extinguishes fires primarily by cooling the fuel below its ignition temperature, which is a direct application of temperature reduction. For smoldering fires, water's high heat absorption capacity effectively removes the heat necessary for combustion, stopping the smoldering process. This method is highly effective because water turns into steam, absorbing a significant amount of heat energy from the burning material.

Which of the following statements about radiant heat is MOST accurate?

Answer: Radiant heat becomes the dominant mode of heat transfer when the fire grows in size.

As a fire grows in size and intensity, its temperature increases significantly, leading to a substantial increase in radiant heat output. This radiant heat then becomes the primary mechanism for transferring energy to surrounding fuels, preheating them and contributing to rapid fire spread and phenomena like flashover. Therefore, radiant heat's role becomes increasingly critical in larger, more developed fires.

Which type of control valve uses a circular disk inside a flat plate on top of the vale housing?

Answer: PIVA

A Post Indicator Valve Assembly (PIVA) is a type of control valve commonly used in fire protection systems, such as those for sprinkler or standpipe systems. It features a circular disk inside a flat plate on top of the valve housing, which visually indicates whether the valve is in the open or closed position. This clear indicator allows firefighters to quickly assess the status of the water supply.

Who is responsible for clearing the HVAC system of residual smoke?

Answer: The building engineer

The building engineer is typically responsible for the operation, maintenance, and specialized functions of a building's HVAC (Heating, Ventilation, and Air Conditioning) system. After a fire, they possess the specific knowledge and access to controls needed to safely and effectively clear residual smoke from the system, ensuring proper air quality and system functionality. Firefighters focus on immediate fire suppression and ventilation, while the engineer handles post-incident system restoration.

Which of the following is a chemical reaction involving the combination of oxygen (or similar types of substances) with other materials?

Answer: Oxidation

Oxidation is a fundamental chemical process where a substance combines with oxygen or a similar oxidizing agent. In the context of fire, this rapid oxidation is known as combustion, which releases energy in the form of heat and light. This chemical reaction is essential for understanding how fires ignite and sustain themselves, as it describes the interaction between fuel and an oxidizer.

The incline drag:

Answer: can be used by one rescuer to move a victim up or down a stairway or incline.

The incline drag is a rescue technique specifically designed for moving a victim, particularly an unconscious adult, by a single rescuer. It is highly practical for navigating challenging terrains like stairways or inclines because it allows the rescuer to pull the victim's head and shoulders while their body slides along the surface. This method minimizes lifting and leverages the surface to aid in movement.

Which public alerting systems were installed on street corners and connected to a wired telegraph circuit within all fire stations in the jurisdiction?

Answer: Wired telegraph circuit boxes

Wired telegraph circuit boxes were early public alerting systems installed on street corners, allowing citizens to manually activate an alarm. These boxes were directly connected via a dedicated wired telegraph circuit to all fire stations in the jurisdiction, transmitting a coded signal that indicated the precise location of the alarm. This system was a foundational precursor to modern emergency call systems.

Which of the following statements about sliding doors is MOST accurate?

Answer: Some door assemblies may have tempered glass.

Sliding glass doors, especially those in residential and commercial applications, are frequently constructed with tempered glass for enhanced safety. Tempered glass is a type of safety glass that has been processed to increase its strength and, when broken, it shatters into small, relatively blunt pieces rather than sharp shards. This characteristic significantly reduces the risk of injury during an emergency or fire incident.

All of the following are safety precautions to observe when undertaking vertical ventilation EXCEPT:

Answer: ensure that main structural supports are cut so full ventilation is attained.

When performing vertical ventilation, firefighters must prioritize safety and structural integrity above all else. Cutting main structural supports is extremely dangerous and could lead to a catastrophic roof collapse, endangering personnel and exacerbating the incident. Ventilation cuts should be strategic, creating necessary openings without compromising the building's critical load-bearing elements.

Incidents involving the removal of victims from entrapment by structural collapse are known as:

Answer: rescues.

Incidents involving the removal of victims from entrapment, particularly those caused by structural collapse, are specifically categorized as rescue operations. These complex operations require specialized training, equipment, and techniques to safely locate, access, stabilize, and extricate individuals from hazardous and unstable environments. The term 'rescues' encompasses the entire life-saving process in such scenarios.

Under which section of the arrival report is the incident named?

Answer: Command status

In the initial arrival report, the 'Command status' section is where the Incident Commander (IC) formally establishes command and names the incident. This declaration is crucial for initiating the incident command system, assigning a unique identifier to the event, and clearly defining who is in charge. It provides a clear organizational structure from the very beginning of the incident.

Which of the following statements about hydraulic ventilation is LEAST accurate?

Answer: It is used to clear the room or building of smoke before a fire has been controlled.

Hydraulic ventilation is primarily used *after* a fire has been controlled or extinguished to clear residual smoke, heat, and toxic gases from a structure. Using it *before* the fire is controlled can be counterproductive and dangerous, as the fog stream can disrupt the thermal layer, spread flames, or push hot gases into uninvolved areas, potentially worsening fire conditions for interior crews.

The first consideration to be taken into account when deciding the need for ventilation is:

Answer: the safety of firefighters and building occupants.

The paramount consideration for any firefighting operation, including ventilation, is always the safety of firefighters and building occupants. Ventilation decisions directly impact the internal environment of a burning structure, affecting visibility, temperature, and the concentration of toxic gases. These factors are critical for safe entry, search, and effective fire suppression, making safety the top priority.

To ensure safety when using rotary saw, start all cuts at ___ rpm

Answer: full

When operating a rotary saw, it is essential to start all cuts at full RPM (revolutions per minute) for safety and efficiency. Starting at full speed ensures that the blade has maximum cutting power and stability, which significantly reduces the risk of kickback, binding, or stalling. This practice allows for a cleaner, more controlled cut and minimizes strain on both the tool and the operator.