FDNY S-11
RESIDENTIAL SPRINKLER
SYSTEMS
CERTIFICATE OF FITNESS EXAM
COMPLETE QUESTIONS AND
CORRECT ANSWERS
LATEST UPDATE THIS YEAR
EXAM SPECIFICATIONS
Time Allocation: 2 Hours
Total Questions: 50 Questions
Question Format: Multiple Choice with Detailed Solutions
Minimum Competency: 70% Required to Pass
Core Focus: NFPA 13D, FDNY Rules, System Components, Inspection, Testing
FDNY S-11 Residential Sprinkler Systems COF Exam Latest Update Page 1
, Exam Overview & Content Outline
EXAM PURPOSE
FDNY S-11 Certificate of Fitness Exam for Residential Sprinkler Systems covers NFPA 13D, FDNY
rules, system components, installation, inspection, testing, and maintenance of residential sprinkler
systems in one- and two-family dwellings and manufactured homes per 2026 FDNY requirements.
CONTENT DISTRIBUTION
• Codes & Standards (25%) — NFPA 13D, FDNY Fire Code, NYC Building Code, permits, COF
responsibilities
• System Components (30%) — Sprinklers, piping, valves, alarms, water supply, pumps, tanks
• Installation Requirements (25%) — Spacing, coverage, obstructions, pipe sizing, hangers,
antifreeze systems
• Inspection, Testing & Maintenance (20%) — ITM frequencies, flow tests, main drain, alarm tests,
impairments
QUESTION FORMAT & SCORING
Each item presents four options. Correct answers are highlighted in green with checkmark (✓).
Every question includes detailed solution with NFPA 13D and FDNY references. FDNY requires 70%
to pass.
STUDY STRATEGY
Master NFPA 13D requirements for residential systems. Know FDNY-specific amendments.
Understand wet pipe vs dry pipe vs antifreeze systems. Review sprinkler types, spacing, and
obstructions. Study water supply requirements. Know ITM frequencies per NFPA 25.
CURRICULUM ALIGNMENT
Questions reflect 2026 standards: NFPA 13D Standard for Installation of Sprinkler Systems in One-
and Two-Family Dwellings, FDNY Fire Code Chapter 9, NYC Building Code, and NFPA 25 ITM.
FDNY S-11 Residential Sprinkler Systems COF Exam Latest Update Page 2
RESIDENTIAL SPRINKLER
SYSTEMS
CERTIFICATE OF FITNESS EXAM
COMPLETE QUESTIONS AND
CORRECT ANSWERS
LATEST UPDATE THIS YEAR
EXAM SPECIFICATIONS
Time Allocation: 2 Hours
Total Questions: 50 Questions
Question Format: Multiple Choice with Detailed Solutions
Minimum Competency: 70% Required to Pass
Core Focus: NFPA 13D, FDNY Rules, System Components, Inspection, Testing
FDNY S-11 Residential Sprinkler Systems COF Exam Latest Update Page 1
, Exam Overview & Content Outline
EXAM PURPOSE
FDNY S-11 Certificate of Fitness Exam for Residential Sprinkler Systems covers NFPA 13D, FDNY
rules, system components, installation, inspection, testing, and maintenance of residential sprinkler
systems in one- and two-family dwellings and manufactured homes per 2026 FDNY requirements.
CONTENT DISTRIBUTION
• Codes & Standards (25%) — NFPA 13D, FDNY Fire Code, NYC Building Code, permits, COF
responsibilities
• System Components (30%) — Sprinklers, piping, valves, alarms, water supply, pumps, tanks
• Installation Requirements (25%) — Spacing, coverage, obstructions, pipe sizing, hangers,
antifreeze systems
• Inspection, Testing & Maintenance (20%) — ITM frequencies, flow tests, main drain, alarm tests,
impairments
QUESTION FORMAT & SCORING
Each item presents four options. Correct answers are highlighted in green with checkmark (✓).
Every question includes detailed solution with NFPA 13D and FDNY references. FDNY requires 70%
to pass.
STUDY STRATEGY
Master NFPA 13D requirements for residential systems. Know FDNY-specific amendments.
Understand wet pipe vs dry pipe vs antifreeze systems. Review sprinkler types, spacing, and
obstructions. Study water supply requirements. Know ITM frequencies per NFPA 25.
CURRICULUM ALIGNMENT
Questions reflect 2026 standards: NFPA 13D Standard for Installation of Sprinkler Systems in One-
and Two-Family Dwellings, FDNY Fire Code Chapter 9, NYC Building Code, and NFPA 25 ITM.
FDNY S-11 Residential Sprinkler Systems COF Exam Latest Update Page 2
