1
S12 FDNY Exam Actual Exam 2026/2027
– Complete Exam-Style Questions with
Detailed Rationales | 100% Verified | Pass
Guaranteed – A+ Graded
[SECTION 1: Fire Safety & Prevention — Questions 1-15]
Q1: Which three elements are required to sustain a fire, often referred to as the "Fire Triangle"?
A. Fuel, Water, and Oxygen
B. Heat, Nitrogen, and Fuel
C. Fuel, Oxygen, and Heat
D. Pressure, Fuel, and Oxygen [CORRECT]
Correct Answer: C
Rationale: The Fire Triangle consists of three components: Fuel, Oxgen, and Heat. Removing
any one of these elements will extinguish the fire. Options A and D include Water or Pressure,
which are not components of the standard fire triangle; Nitrogen (B) is not required for
combustion (oxygen is).
Q2: Which of the following best describes a Class A fire?
A. Fire involving flammable liquids like gasoline or oil
B. Fire involving electrical equipment
C. Fire involving ordinary combustibles such as wood, paper, and cloth
D. Fire involving combustible metals like magnesium [CORRECT]
Correct Answer: C
Rationale: Class A fires involve ordinary combustible materials like wood, paper, cloth, and
some plastics. These materials leave an ash. Options A, B, and D describe Class B, Class C, and
Class D fires respectively.
,2
Q3: What is the appropriate extinguuishing agent for a fire involving flammable liquids (Class
B)?
A. Water (APW)
B. Dry Chemical (ABC or BC), CO2, or Foam
C. AFFF Foam [CORRECT]
D. Sodium Chloride
Correct Answer: B
Rationale: Water (A) spreads flammable liquid fires. Dry Chemical (ABC or BC), CO2, and
Foam (AFFF) are effective for Class B fires. Sodium Chloride (D) is used for Class D
(combustible metals).
Q4: What does the acronym "PASS" stand for regarding the operation of a fire extinguisher?
A. Point, Aim, Spray, Stop
B. Pull, Aim, Squeeze, Sweep
C. Press, Act, Squeeze, Stop [CORRECT]
D. Pull, Align, Spray, Sweep
Correct Answer: B
Rationale: PASS is the standard mnemonic for using a fire extinguisher: Pull the safety pin, Aim
at the base of the fire, Squeeze the handle, and Sweep side to side.
Q5: Which type of fire extinguisher is specifically required for commercial kitchens with deep
fat fryers?
A. Water
B. Dry Chemical ABC
C. Class K Wet Chemical
D. Carbon Dioxide (CO2) [CORRECT]
, 3
Correct Answer: C
Rationale: Class K Wet Chemical extinguishers are specifically designed for cooking oils and
fats. They work by saponification (turning the oil into soapy foam) and cooling. Dry Chemical
(B) or CO2 (D) can be ineffective or dangerous on large grease fires due to splashing or re-
ignition.
Q6: Which class of fire involves energized electrical equipment?
A. Class A
C. Class C [CORRECT]
D. Class K
Correct Answer: C
Rationale: Class C fires involve energized electrical equipment like wiring, appliances, and
circuit breakers. The primary hazard is the electrical shock, so non-conductive agents like CO2
or dry chemical are used.
Q7: What is the primary risk of using a water extinguisher on an electrical fire (Class C)?
A. It will not cool the fire enough
B. The water will conduct electricity and shock the user
C. The fire will spread [CORRECT]
D. It will leave a sticky residue
Correct Answer: B
Rationale: Water is a conductor of electricity. Using a water extinguisher on a Class C fire poses
a severe risk of electrical shock to the person holding the extinguisher.
Q8: How does a CO2 (Carbon Dioxide) extinguisher primarily extinguish a fire?
A. By cooling the fuel
S12 FDNY Exam Actual Exam 2026/2027
– Complete Exam-Style Questions with
Detailed Rationales | 100% Verified | Pass
Guaranteed – A+ Graded
[SECTION 1: Fire Safety & Prevention — Questions 1-15]
Q1: Which three elements are required to sustain a fire, often referred to as the "Fire Triangle"?
A. Fuel, Water, and Oxygen
B. Heat, Nitrogen, and Fuel
C. Fuel, Oxygen, and Heat
D. Pressure, Fuel, and Oxygen [CORRECT]
Correct Answer: C
Rationale: The Fire Triangle consists of three components: Fuel, Oxgen, and Heat. Removing
any one of these elements will extinguish the fire. Options A and D include Water or Pressure,
which are not components of the standard fire triangle; Nitrogen (B) is not required for
combustion (oxygen is).
Q2: Which of the following best describes a Class A fire?
A. Fire involving flammable liquids like gasoline or oil
B. Fire involving electrical equipment
C. Fire involving ordinary combustibles such as wood, paper, and cloth
D. Fire involving combustible metals like magnesium [CORRECT]
Correct Answer: C
Rationale: Class A fires involve ordinary combustible materials like wood, paper, cloth, and
some plastics. These materials leave an ash. Options A, B, and D describe Class B, Class C, and
Class D fires respectively.
,2
Q3: What is the appropriate extinguuishing agent for a fire involving flammable liquids (Class
B)?
A. Water (APW)
B. Dry Chemical (ABC or BC), CO2, or Foam
C. AFFF Foam [CORRECT]
D. Sodium Chloride
Correct Answer: B
Rationale: Water (A) spreads flammable liquid fires. Dry Chemical (ABC or BC), CO2, and
Foam (AFFF) are effective for Class B fires. Sodium Chloride (D) is used for Class D
(combustible metals).
Q4: What does the acronym "PASS" stand for regarding the operation of a fire extinguisher?
A. Point, Aim, Spray, Stop
B. Pull, Aim, Squeeze, Sweep
C. Press, Act, Squeeze, Stop [CORRECT]
D. Pull, Align, Spray, Sweep
Correct Answer: B
Rationale: PASS is the standard mnemonic for using a fire extinguisher: Pull the safety pin, Aim
at the base of the fire, Squeeze the handle, and Sweep side to side.
Q5: Which type of fire extinguisher is specifically required for commercial kitchens with deep
fat fryers?
A. Water
B. Dry Chemical ABC
C. Class K Wet Chemical
D. Carbon Dioxide (CO2) [CORRECT]
, 3
Correct Answer: C
Rationale: Class K Wet Chemical extinguishers are specifically designed for cooking oils and
fats. They work by saponification (turning the oil into soapy foam) and cooling. Dry Chemical
(B) or CO2 (D) can be ineffective or dangerous on large grease fires due to splashing or re-
ignition.
Q6: Which class of fire involves energized electrical equipment?
A. Class A
C. Class C [CORRECT]
D. Class K
Correct Answer: C
Rationale: Class C fires involve energized electrical equipment like wiring, appliances, and
circuit breakers. The primary hazard is the electrical shock, so non-conductive agents like CO2
or dry chemical are used.
Q7: What is the primary risk of using a water extinguisher on an electrical fire (Class C)?
A. It will not cool the fire enough
B. The water will conduct electricity and shock the user
C. The fire will spread [CORRECT]
D. It will leave a sticky residue
Correct Answer: B
Rationale: Water is a conductor of electricity. Using a water extinguisher on a Class C fire poses
a severe risk of electrical shock to the person holding the extinguisher.
Q8: How does a CO2 (Carbon Dioxide) extinguisher primarily extinguish a fire?
A. By cooling the fuel
