S12 FDNY Exam (Latest 2025/2026 Update)
Questions and Verified Answers | 100% Correct | Grade A
Contents
1 Introduction 2
2 Exam Questions and Answers 2
S12 FDNY Certificate Exam | Verified Questions | 2025/2026 Update | Grade A | Page 1
,1 Introduction
This document provides verified and up-to-date exam questions and an-
swers for the FDNY S12 Certificate of Fitness exam. Fully aligned with
2025/2026 NYC Fire Code updates and exam format, it is designed to help
candidates prepare for certification success with 100% correct answers and
a Grade A result.
2 Exam Questions and Answers
The following 50 multiple-choice questions reflect the FDNY S12 Certifi-
cate of Fitness exam format. Each question includes four answer options
(A–D), with the correct answer highlighted in bold green. A brief rationale
reinforces learning.
1. What is the purpose of an automatic ball drip in a sprinkler system?
(a) To regulate water pressure
(b) To prevent freezing in the line
(c) To activate the fire alarm
(d) To control water flow
Rationale: The ball drip drains water to prevent freezing in the piping between
the check valve and Fire Department connection.[](https://www.stuvia.com/en-
us/doc/4923576/s12-fdny-exam-latest-2024-2025-update-questions-and-verified-answers-
100-correct-grade-a)
2. According to Local Law 58/2009, what color must sprinkler and
standpipe risers be painted?
(a) Red
(b) Blue
(c) Yellow
(d) Green
Rationale: Local Law 58/2009 mandates yellow paint for sprinkler and standpipe
risers for clear identification.[](https://www.stuvia.com/doc/4923576/s12-fdny-exam-
latest-2024-2025-update-questions-and-verified-answers-100-correct-grade-a)
S12 FDNY Certificate Exam | Verified Questions | 2025/2026 Update | Grade A | Page 2
, 3. What is the minimum distance from the hanger assembly to the cen-
terline of an upright sprinkler head?
(a) 1 inch
(b) 2 inches
(c) 3 inches
(d) 4 inches
Rationale: A 3-inch distance ensures proper sprinkler operation and compliance
with NFPA standards.[](https://www.stuvia.com/en-us/doc/4923576/s12-fdny-exam-
latest-2024-2025-update-questions-and-verified-answers-100-correct-grade-a)
4. What is the term for the buildup of foreign matter on a sprinkler
head?
(a) Corrosion
(b) Loading
(c) Scaling
(d) Fouling
Rationale: Loading refers to debris accumulation that can impair sprinkler function.[](https://www
fdny-exam-latest-2024-2025-update-questions-and-verified-answers-100-correct-grade-
a)
5. When a sprinkler head opens, it is said to:
(a) Activate
(b) Discharge
(c) Be fused
(d) Trigger
Rationale: A sprinkler head is fused when its heat-sensitive element breaks, allowing
water release.[](https://www.stuvia.com/en-us/doc/4923576/s12-fdny-exam-latest-
2024-2025-update-questions-and-verified-answers-100-correct-grade-a)
6. What is the minimum air pressure inside a pressure tank?
(a) 50 psi
S12 FDNY Certificate Exam | Verified Questions | 2025/2026 Update | Grade A | Page 3
Questions and Verified Answers | 100% Correct | Grade A
Contents
1 Introduction 2
2 Exam Questions and Answers 2
S12 FDNY Certificate Exam | Verified Questions | 2025/2026 Update | Grade A | Page 1
,1 Introduction
This document provides verified and up-to-date exam questions and an-
swers for the FDNY S12 Certificate of Fitness exam. Fully aligned with
2025/2026 NYC Fire Code updates and exam format, it is designed to help
candidates prepare for certification success with 100% correct answers and
a Grade A result.
2 Exam Questions and Answers
The following 50 multiple-choice questions reflect the FDNY S12 Certifi-
cate of Fitness exam format. Each question includes four answer options
(A–D), with the correct answer highlighted in bold green. A brief rationale
reinforces learning.
1. What is the purpose of an automatic ball drip in a sprinkler system?
(a) To regulate water pressure
(b) To prevent freezing in the line
(c) To activate the fire alarm
(d) To control water flow
Rationale: The ball drip drains water to prevent freezing in the piping between
the check valve and Fire Department connection.[](https://www.stuvia.com/en-
us/doc/4923576/s12-fdny-exam-latest-2024-2025-update-questions-and-verified-answers-
100-correct-grade-a)
2. According to Local Law 58/2009, what color must sprinkler and
standpipe risers be painted?
(a) Red
(b) Blue
(c) Yellow
(d) Green
Rationale: Local Law 58/2009 mandates yellow paint for sprinkler and standpipe
risers for clear identification.[](https://www.stuvia.com/doc/4923576/s12-fdny-exam-
latest-2024-2025-update-questions-and-verified-answers-100-correct-grade-a)
S12 FDNY Certificate Exam | Verified Questions | 2025/2026 Update | Grade A | Page 2
, 3. What is the minimum distance from the hanger assembly to the cen-
terline of an upright sprinkler head?
(a) 1 inch
(b) 2 inches
(c) 3 inches
(d) 4 inches
Rationale: A 3-inch distance ensures proper sprinkler operation and compliance
with NFPA standards.[](https://www.stuvia.com/en-us/doc/4923576/s12-fdny-exam-
latest-2024-2025-update-questions-and-verified-answers-100-correct-grade-a)
4. What is the term for the buildup of foreign matter on a sprinkler
head?
(a) Corrosion
(b) Loading
(c) Scaling
(d) Fouling
Rationale: Loading refers to debris accumulation that can impair sprinkler function.[](https://www
fdny-exam-latest-2024-2025-update-questions-and-verified-answers-100-correct-grade-
a)
5. When a sprinkler head opens, it is said to:
(a) Activate
(b) Discharge
(c) Be fused
(d) Trigger
Rationale: A sprinkler head is fused when its heat-sensitive element breaks, allowing
water release.[](https://www.stuvia.com/en-us/doc/4923576/s12-fdny-exam-latest-
2024-2025-update-questions-and-verified-answers-100-correct-grade-a)
6. What is the minimum air pressure inside a pressure tank?
(a) 50 psi
S12 FDNY Certificate Exam | Verified Questions | 2025/2026 Update | Grade A | Page 3
