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FDNY G-46 EXAM – FIRE DEPARTMENT OF
NEW YORK PORTABLE FIRE
EXTINGUISHERS – FULL PRACTICE
EXAMINATION (2026/2027EDITION)PDF
Q1. What is the primary function of an Auxiliary Radio
Communication System (ARCS)?
A) Enable elevator recall
B) Provide backup fire alarm signals
C) Ensure FDNY radio communication inside buildings
D) Connect sprinkler valves to the panel
✅ Answer: C – Ensure FDNY radio communication inside
buildings
Rationale: ARCS extends FDNY radio signals throughout the
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building to ensure reliable communication for firefighters inside
large or high-rise buildings.
Q2. ARCS operates on which FDNY radio frequency band?
A) VHF Low Band
B) HF Long Band
C) UHF Public Safety Band
D) Microwave Band
✅ Answer: C – UHF Public Safety Band
Rationale: FDNY radio systems use UHF frequencies for building
communication systems.
Q3. What is the primary purpose of a portable fire
extinguisher?
A) To extinguish a large, fully involved fire
B) To control or extinguish small, incipient-stage fires
C) To replace the need for a fire alarm system
D) To serve as a decoration in compliance with building codes
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✅ Answer: B – To control or extinguish small, incipient-stage
fires
Rationale: Portable extinguishers are designed for early-stage
fires. Once a fire is large or has spread, occupants should
evacuate and let the fire department handle it.
Q4. What are the three elements of the “fire triangle”?
A) Oxygen, Heat, and Carbon Monoxide
B) Heat, Fuel, and an Uninhibited Chemical Chain Reaction
C) Fuel, Oxygen, and Heat
D) Fuel, Nitrogen, and Ignition Source
✅ Answer: C – Fuel, Oxygen, and Heat
Rationale: The fire triangle consists of fuel, oxygen, and heat.
Removing any one of these elements will extinguish the fire.
Q5. Which element of the fire triangle is primarily removed by a
Class A fire extinguisher?
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A) Oxygen
B) Fuel
C) Heat
D) Chemical Chain Reaction
✅ Answer: B – Fuel
Rationale: Water and other Class A agents work primarily by
cooling the fuel, but they also remove heat. However, the most
direct effect is on the fuel by absorbing heat until it can no
longer sustain combustion.
Q6. The “pass” method for using a fire extinguisher stands for:
A) Pull, Aim, Squeeze, Sweep
B) Pull, Aim, Spray, Stand back
C) Push, Aim, Squeeze, Sweep
D) Pull, Alert, Squeeze, Sweep
FDNY G-46 EXAM – FIRE DEPARTMENT OF
NEW YORK PORTABLE FIRE
EXTINGUISHERS – FULL PRACTICE
EXAMINATION (2026/2027EDITION)PDF
Q1. What is the primary function of an Auxiliary Radio
Communication System (ARCS)?
A) Enable elevator recall
B) Provide backup fire alarm signals
C) Ensure FDNY radio communication inside buildings
D) Connect sprinkler valves to the panel
✅ Answer: C – Ensure FDNY radio communication inside
buildings
Rationale: ARCS extends FDNY radio signals throughout the
,Page 2 of 148
building to ensure reliable communication for firefighters inside
large or high-rise buildings.
Q2. ARCS operates on which FDNY radio frequency band?
A) VHF Low Band
B) HF Long Band
C) UHF Public Safety Band
D) Microwave Band
✅ Answer: C – UHF Public Safety Band
Rationale: FDNY radio systems use UHF frequencies for building
communication systems.
Q3. What is the primary purpose of a portable fire
extinguisher?
A) To extinguish a large, fully involved fire
B) To control or extinguish small, incipient-stage fires
C) To replace the need for a fire alarm system
D) To serve as a decoration in compliance with building codes
,Page 3 of 148
✅ Answer: B – To control or extinguish small, incipient-stage
fires
Rationale: Portable extinguishers are designed for early-stage
fires. Once a fire is large or has spread, occupants should
evacuate and let the fire department handle it.
Q4. What are the three elements of the “fire triangle”?
A) Oxygen, Heat, and Carbon Monoxide
B) Heat, Fuel, and an Uninhibited Chemical Chain Reaction
C) Fuel, Oxygen, and Heat
D) Fuel, Nitrogen, and Ignition Source
✅ Answer: C – Fuel, Oxygen, and Heat
Rationale: The fire triangle consists of fuel, oxygen, and heat.
Removing any one of these elements will extinguish the fire.
Q5. Which element of the fire triangle is primarily removed by a
Class A fire extinguisher?
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A) Oxygen
B) Fuel
C) Heat
D) Chemical Chain Reaction
✅ Answer: B – Fuel
Rationale: Water and other Class A agents work primarily by
cooling the fuel, but they also remove heat. However, the most
direct effect is on the fuel by absorbing heat until it can no
longer sustain combustion.
Q6. The “pass” method for using a fire extinguisher stands for:
A) Pull, Aim, Squeeze, Sweep
B) Pull, Aim, Spray, Stand back
C) Push, Aim, Squeeze, Sweep
D) Pull, Alert, Squeeze, Sweep
