---
title: "Short note: Fire protection in building"
subject: "Building Technology"
chapter: 12
key: "semester_6/building_technology:short-fire-protection"
source: https://www.bctengineer.com/q/semester_6/building_technology/short-fire-protection
site: BCT Engineering
---

# Short note: Fire protection in building

Building Technology · Chapter 12: Other services in building

- Asked in: 2076 Bhadra, 4 marks; 2066 Bhadra (old course), 4 marks (asked 2 times)
- Video: [Building Design and Construction Features for Fire Protection - Building Walls](https://www.youtube.com/watch?v=EyIuvdu-KA0) — RedVectorOnline
- Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14
- Page: https://www.bctengineer.com/q/semester_6/building_technology/short-fire-protection
- Whole chapter: https://www.bctengineer.com/md/semester_6/building_technology/chapter-12

## Question

Write a short note on fire protection (system) in building.

## Short answer

Fire protection in buildings includes passive measures like fire-resistant materials, fire walls, and escape routes with fire-rated staircases, and active systems like smoke/heat detectors, alarms, portable extinguishers, hydrants, sprinklers, and static water tanks. Fire prevention involves safe wiring, storage, and regular drills.

## Answer

**Fire protection** in a building means all the measures that prevent fire, limit its spread, protect occupants and extinguish it. It has passive and active parts (NBC 107, Provisional Recommendation on Fire Safety, covers fire safety in Nepal).

#### Passive protection (built into the structure)
- Non-combustible, fire-resistant materials and structural members of proper fire rating (concrete cover, steel encasement).
- Compartmentation by fire walls, fire doors and fire stops.
- Means of escape: enough exits, fire-resistant protected staircases, exit signs and emergency lights; limits on travel distance.
- Open spaces around the building and access for fire engines.
- Smoke ventilation and enclosed shafts.

#### Active protection
- **Detection and alarm:** smoke/heat detectors, call points, alarm panels.
- **Extinguishing:** portable extinguishers, hose reels, hydrants, wet/dry risers, automatic sprinklers, static water tank and pumps, CO2 or foam systems.
- **Fire lifts and pressurised stairs** in tall buildings.

#### Fire prevention
Safe electrical wiring, safe storage of flammable materials, no-smoking areas, and regular drills and inspections.

```text
 Prevent -> Detect -> Alarm -> Escape -> Extinguish -> Contain
```

## Check yourself

The answer's key points as multiple-choice questions, with the correct option and why.

1. Which is passive fire protection?
   A. Compartmentation by fire walls and fire doors
   B. Sprinklers
   C. Hose reels
   D. Smoke detectors
   Answer: A. Passive measures are built into the structure. (Key point: Passive protection)

2. Which is active protection?
   A. Automatic sprinklers and alarms
   B. Fire walls
   C. Fire-resistant materials
   D. Protected staircase only
   Answer: A. Active systems detect and extinguish. (Key point: Active protection)

3. Which belongs to means of escape?
   A. Single narrow exit
   B. Enough exits, protected staircases, exit signs, emergency lights
   C. Locked stairs
   D. Combustible lining
   Answer: B. Travel distance is also limited. (Key point: Means of escape)

4. Which is fire prevention?
   A. Sprinklers
   B. Extinguishers
   C. Safe wiring and safe storage of flammables
   D. Hydrants
   Answer: C. Prevention reduces ignition risk. (Key point: Prevention)

## Related in Building Technology

- [Electrification system and fire protection](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Aelectrification-fire) — Building Technology, chapter 12
- [Earthquake protection and resistant building principles](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Aeq-protection-principles) — Building Technology, chapter 11, asked 3×
- [Fire safety features; first flush in RWH](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Afirst-flush-fire-safety) — Building Technology, chapter 12
- [Factors for limiting fire spread](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Afire-spread-factors) — Building Technology, chapter 12
- [Fire detection and extinguishing systems](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Afire-detection-extinguishing) — Building Technology, chapter 12
- [Short note: Fire extinguisher](https://www.bctengineer.com/question.md?key=semester_6%2Fbuilding_technology%3Ashort-fire-extinguisher) — Building Technology, chapter 12

## Related in other subjects

- [Fire fighting system in power station](https://www.bctengineer.com/question.md?key=semester_7%2Fpower_plant_equipment%3Afire-fighting-power-station) — Power Plant Equipment, chapter 4, asked 5×
- [Protection requirements; protective system vs scheme](https://www.bctengineer.com/question.md?key=semester_6%2Fswitchgear_and_protection%3Aprotective-system-vs-scheme) — Switchgear and Protection, chapter 1
- [T/F: protection ratio vs system voltage](https://www.bctengineer.com/question.md?key=semester_8%2Ftransmission_and_distribution_system_design%3Atf-protection-ratio-system-voltage) — Transmission and Distribution System Design, chapter 3
- [ANOVA: distance to fire stations in four areas](https://www.bctengineer.com/question.md?key=semester_5%2Fprobability_and_statistics%3Aanova-fire-station-distance) — Probability and Statistics, chapter 6