MDFR AERIAL EXAM QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2025/2026
A D/O must be able to perform basic inspection of ____ ____ - Answers Stabilizing System
What is a main use for aerial ladders? - Answers Gaining access to upper levels of an
emergency scene
Which system provides power to operate the various components that stabilize the apparatus
and operate the aerial device? - Answers Hydraulic System
Engineering design has proved that aerial ladder trusses lend more strength if assembled
members form ______ - Answers triangles
The MOST likely result of overtaxing generating equipment when operating scene lighting -
Answers Poor lighting and possible damage to the power-generating unit or light
The most common type of pre-piped aerial ladder waterway system - Answers Telescoping
waterway system
What is a power-operated ladder that allows firefighters to easily ascend and descend from the
tip of the ladder and the turntable for fire rescue operations? - Answers Aerial ladder
NFPA 1901 requires a _____ communication system in all aerial device apparatus. - Answers two
-way
Voice communication systems in the aerial device are used to: - Answers permit firefighters at
the tip of the aerial device to communicate with the driver/operator at the aerial operator
position
One of the five features NFPA 1901 establishes an apparatus must have to qualify as a quint: -
Answers Fire pump
On most aerial devices, the third, fourth and fifth (if present) sections of the aerial device are
extended by: - Answers a system of cables and pulleys
What allows sections of the aerial device to extend and retract without causing excessive wear
on parts of the device that come into contact with each other? - Answers Slides and rollers
What is a function that crews assigned to an aerial apparatus have historically been assigned? -
Answers Ventilation
The working height for Aerial ladders is measured from: - Answers the ground to the highest
ladder rung with the ladder at maximum elevation and extension
Which NFPA standard requires a two-way communication system on all aerial device apparatus?
- Answers NFPA 1901
, When responding to a railroad incident, most railroad companies advise that all vehicles be kept
at least: - Answers 25 ft (7.5 m) from the tracks
Positioning an aerial apparatus in a location that provides the utmost efficiency for operating on
the fire ground is known as: - Answers spotting
At an emergency medical incident, if possible, the aerial apparatus should be parked off the
street to: - Answers virtually eliminate any hazards associated with traffic
When approaching and positioning an apparatus at a specific incident, if the apparatus is to be
positioned in a dead-end access, it should be backed into position if possible because: -
Answers it will make an escape faster if it becomes necessary
Parking lots with the potential for stabilization problems should be identified where? - Answers
Pre-incident plans
What is the BEST potential sign of structural collapse that may be identified from an overhead
look on an aerial device at a structural incident? - Answers Bulging walls
What BEST describes how later-arriving aerial apparatus are positioned at large incidents? -
Answers It goes according to the Incident Action Plan
Tactical considerations dictate that the proper distance between the objective and the aerial
apparatus is the distance that affords the: - Answers best climbing angle
Moderate to high winds may reduce the overall stability of an aerial apparatus the MOST by: -
Answers forcing movement for which the apparatus was not designed
If possible, the driver/operator should avoid spotting the apparatus in a position that will require
a lot of aerial device maneuvering: - Answers around ground and overhead obstructions
The apparatus is is the MOST stable when the aerial device is operated in positions: - Answers
directly over the front or rear of the vehicle
If the building has been exposed to severe fire conditions, it is MOST advisable to park: -
Answers outside of the buildings collapse zone
The distance between the objective and the aerial apparatus should be: - Answers consistent
with conditions at the emergency scene
When possible, driver/operators should always approach incidents from _____ and ____. -
Answers upwind and uphill
Which type of surface should an aerial apparatus only be parked on as a last alternative? -
Answers Soft surfaces
When operating ___ stabilizers, the first operation is to extend the parallel arms to their
A D/O must be able to perform basic inspection of ____ ____ - Answers Stabilizing System
What is a main use for aerial ladders? - Answers Gaining access to upper levels of an
emergency scene
Which system provides power to operate the various components that stabilize the apparatus
and operate the aerial device? - Answers Hydraulic System
Engineering design has proved that aerial ladder trusses lend more strength if assembled
members form ______ - Answers triangles
The MOST likely result of overtaxing generating equipment when operating scene lighting -
Answers Poor lighting and possible damage to the power-generating unit or light
The most common type of pre-piped aerial ladder waterway system - Answers Telescoping
waterway system
What is a power-operated ladder that allows firefighters to easily ascend and descend from the
tip of the ladder and the turntable for fire rescue operations? - Answers Aerial ladder
NFPA 1901 requires a _____ communication system in all aerial device apparatus. - Answers two
-way
Voice communication systems in the aerial device are used to: - Answers permit firefighters at
the tip of the aerial device to communicate with the driver/operator at the aerial operator
position
One of the five features NFPA 1901 establishes an apparatus must have to qualify as a quint: -
Answers Fire pump
On most aerial devices, the third, fourth and fifth (if present) sections of the aerial device are
extended by: - Answers a system of cables and pulleys
What allows sections of the aerial device to extend and retract without causing excessive wear
on parts of the device that come into contact with each other? - Answers Slides and rollers
What is a function that crews assigned to an aerial apparatus have historically been assigned? -
Answers Ventilation
The working height for Aerial ladders is measured from: - Answers the ground to the highest
ladder rung with the ladder at maximum elevation and extension
Which NFPA standard requires a two-way communication system on all aerial device apparatus?
- Answers NFPA 1901
, When responding to a railroad incident, most railroad companies advise that all vehicles be kept
at least: - Answers 25 ft (7.5 m) from the tracks
Positioning an aerial apparatus in a location that provides the utmost efficiency for operating on
the fire ground is known as: - Answers spotting
At an emergency medical incident, if possible, the aerial apparatus should be parked off the
street to: - Answers virtually eliminate any hazards associated with traffic
When approaching and positioning an apparatus at a specific incident, if the apparatus is to be
positioned in a dead-end access, it should be backed into position if possible because: -
Answers it will make an escape faster if it becomes necessary
Parking lots with the potential for stabilization problems should be identified where? - Answers
Pre-incident plans
What is the BEST potential sign of structural collapse that may be identified from an overhead
look on an aerial device at a structural incident? - Answers Bulging walls
What BEST describes how later-arriving aerial apparatus are positioned at large incidents? -
Answers It goes according to the Incident Action Plan
Tactical considerations dictate that the proper distance between the objective and the aerial
apparatus is the distance that affords the: - Answers best climbing angle
Moderate to high winds may reduce the overall stability of an aerial apparatus the MOST by: -
Answers forcing movement for which the apparatus was not designed
If possible, the driver/operator should avoid spotting the apparatus in a position that will require
a lot of aerial device maneuvering: - Answers around ground and overhead obstructions
The apparatus is is the MOST stable when the aerial device is operated in positions: - Answers
directly over the front or rear of the vehicle
If the building has been exposed to severe fire conditions, it is MOST advisable to park: -
Answers outside of the buildings collapse zone
The distance between the objective and the aerial apparatus should be: - Answers consistent
with conditions at the emergency scene
When possible, driver/operators should always approach incidents from _____ and ____. -
Answers upwind and uphill
Which type of surface should an aerial apparatus only be parked on as a last alternative? -
Answers Soft surfaces
When operating ___ stabilizers, the first operation is to extend the parallel arms to their
