FDNY FIRE ALARM
DISPATCHER Z-51
Emergency Communications & CAD
2026/2027 Edition
Fire Dispatch Procedures
100 Verified Questions with Detailed Rationales
EXAM SPECIFICATIONS
Time Allocation: 3 Hours
Total Questions: 100 Questions
Question Format: Multiple Choice with Rationales
Minimum Competency: 70% Required to Pass
Core Focus: FDNY Radio Codes, CAD, Box Locations, Dispatch Protocol
FDNY Fire Alarm Dispatcher Z-51 Exam Prep 2026/2027 Page 1
, Exam Overview & Content Outline
EXAM PURPOSE
This FDNY Fire Alarm Dispatcher Z-51 Exam Prep validates knowledge required for Emergency
Communications Dispatcher position. Content covers FDNY radio procedures, CAD operations, NYC
geography, box alarm system, and fire department dispatch protocols per DCAS standards.
CONTENT DISTRIBUTION
• Radio Communications & 10-Codes (25%) — FDNY 10-codes, signal codes, phonetic alphabet,
radio etiquette, mayday procedures
• CAD Operations & Call Taking (25%) — Computer Aided Dispatch, incident types, priority codes,
address verification, ANI/ALI
• NYC Geography & Box Locations (20%) — Boroughs, box alarm system, cross streets,
landmarks, response districts
• Fire Dispatch Procedures (20%) — Alarm assignments, unit deployment, move-ups, relocations,
special calls
• Emergency Protocols & Regulations (10%) — Hazmat, EMS coordination, MCI, NIMS,
dispatcher responsibilities
QUESTION FORMAT & SCORING
Each item presents four options. Correct answers are highlighted in green with checkmark (✓).
Every question includes detailed rationale with FDNY procedure references. Achieve 70%
competency to pass.
STUDY STRATEGY
Memorize FDNY 10-codes and signal codes. Master NYC borough geography and box numbers.
Practice CAD scenarios and priority dispatch. Use rationales to understand dispatch logic.
CURRICULUM ALIGNMENT
Questions reflect 2026/2027 standards: FDNY Communications Manual, DCAS Z-51 requirements,
NFPA 1221, NENA standards, and NYC Emergency Management protocols.
FDNY Fire Alarm Dispatcher Z-51 Exam Prep 2026/2027 Page 2
, SECTION I: Radio Communications & FDNY 10-Codes
1. FDNY 10-75 indicates:
✓ A. Working fire
B. Signal 10-75 transmitted
C. Water supply established
D. All units returning
Rationale: 10-75 is FDNY code for working fire transmitted. It escalates response beyond initial alarm. 10-76
is water on fire. 10-84 is returning to service.
2. The FDNY signal code for 'Fire Out' is:
✓ A. Signal 10-41
B. Signal 10-45
C. Signal 10-60
D. Signal 10-99
Rationale: Signal 10-41 indicates fire is out/under control. 10-45 is fire-related death. 10-60 is major
emergency. 10-99 is emergency traffic only.
3. When transmitting on FDNY radio, the dispatcher should first:
A. Speak immediately
✓ B. Listen to ensure frequency is clear
C. Use 10-4
D. Identify unit number
Rationale: Radio etiquette requires listening before transmitting to avoid stepping on traffic. Then identify
self, unit, and message. 10-4 is acknowledgment, not initiation.
4. A 'Mayday' call from fireground indicates:
A. Request for additional units
✓ B. Firefighter in distress/life-threatening situation
C. Water supply problem
D. Routine progress report
Rationale: Mayday is universal emergency call for firefighter in imminent danger—trapped, lost, or injured.
Requires immediate rescue response and radio silence except for Mayday traffic.
5. FDNY phonetic alphabet for 'K' is:
✓ A. Kilo
B. King
C. Key
D. Knife
Rationale: FDNY uses NATO phonetic: K = Kilo. King is old LAPD alphabet. Consistency prevents confusion
on radio. Other letters: A-Alpha, B-Bravo, C-Charlie.
FDNY Fire Alarm Dispatcher Z-51 Exam Prep 2026/2027 Page 3
DISPATCHER Z-51
Emergency Communications & CAD
2026/2027 Edition
Fire Dispatch Procedures
100 Verified Questions with Detailed Rationales
EXAM SPECIFICATIONS
Time Allocation: 3 Hours
Total Questions: 100 Questions
Question Format: Multiple Choice with Rationales
Minimum Competency: 70% Required to Pass
Core Focus: FDNY Radio Codes, CAD, Box Locations, Dispatch Protocol
FDNY Fire Alarm Dispatcher Z-51 Exam Prep 2026/2027 Page 1
, Exam Overview & Content Outline
EXAM PURPOSE
This FDNY Fire Alarm Dispatcher Z-51 Exam Prep validates knowledge required for Emergency
Communications Dispatcher position. Content covers FDNY radio procedures, CAD operations, NYC
geography, box alarm system, and fire department dispatch protocols per DCAS standards.
CONTENT DISTRIBUTION
• Radio Communications & 10-Codes (25%) — FDNY 10-codes, signal codes, phonetic alphabet,
radio etiquette, mayday procedures
• CAD Operations & Call Taking (25%) — Computer Aided Dispatch, incident types, priority codes,
address verification, ANI/ALI
• NYC Geography & Box Locations (20%) — Boroughs, box alarm system, cross streets,
landmarks, response districts
• Fire Dispatch Procedures (20%) — Alarm assignments, unit deployment, move-ups, relocations,
special calls
• Emergency Protocols & Regulations (10%) — Hazmat, EMS coordination, MCI, NIMS,
dispatcher responsibilities
QUESTION FORMAT & SCORING
Each item presents four options. Correct answers are highlighted in green with checkmark (✓).
Every question includes detailed rationale with FDNY procedure references. Achieve 70%
competency to pass.
STUDY STRATEGY
Memorize FDNY 10-codes and signal codes. Master NYC borough geography and box numbers.
Practice CAD scenarios and priority dispatch. Use rationales to understand dispatch logic.
CURRICULUM ALIGNMENT
Questions reflect 2026/2027 standards: FDNY Communications Manual, DCAS Z-51 requirements,
NFPA 1221, NENA standards, and NYC Emergency Management protocols.
FDNY Fire Alarm Dispatcher Z-51 Exam Prep 2026/2027 Page 2
, SECTION I: Radio Communications & FDNY 10-Codes
1. FDNY 10-75 indicates:
✓ A. Working fire
B. Signal 10-75 transmitted
C. Water supply established
D. All units returning
Rationale: 10-75 is FDNY code for working fire transmitted. It escalates response beyond initial alarm. 10-76
is water on fire. 10-84 is returning to service.
2. The FDNY signal code for 'Fire Out' is:
✓ A. Signal 10-41
B. Signal 10-45
C. Signal 10-60
D. Signal 10-99
Rationale: Signal 10-41 indicates fire is out/under control. 10-45 is fire-related death. 10-60 is major
emergency. 10-99 is emergency traffic only.
3. When transmitting on FDNY radio, the dispatcher should first:
A. Speak immediately
✓ B. Listen to ensure frequency is clear
C. Use 10-4
D. Identify unit number
Rationale: Radio etiquette requires listening before transmitting to avoid stepping on traffic. Then identify
self, unit, and message. 10-4 is acknowledgment, not initiation.
4. A 'Mayday' call from fireground indicates:
A. Request for additional units
✓ B. Firefighter in distress/life-threatening situation
C. Water supply problem
D. Routine progress report
Rationale: Mayday is universal emergency call for firefighter in imminent danger—trapped, lost, or injured.
Requires immediate rescue response and radio silence except for Mayday traffic.
5. FDNY phonetic alphabet for 'K' is:
✓ A. Kilo
B. King
C. Key
D. Knife
Rationale: FDNY uses NATO phonetic: K = Kilo. King is old LAPD alphabet. Consistency prevents confusion
on radio. Other letters: A-Alpha, B-Bravo, C-Charlie.
FDNY Fire Alarm Dispatcher Z-51 Exam Prep 2026/2027 Page 3
