AIIMS CRE 2025
Nursing Foundation
Easy
Which substance is used in a Red colored fire extinguisher?
Appeared in: AIIMS CRE 2025
Explanation
- Fire extinguishers with a solid red color contain water as the extinguishing agent.
- This is based on the standard color-coding system for fire safety equipment (IS 2190 in India).
- Water extinguishers are designed for Class A fires, which involve solid combustible materials like wood, paper, and fabric.
- The image shows a classic all-red fire extinguisher, confirming it is a water type.
Why Other Options Were Wrong
- Option A: Foam extinguishers are identified by a cream-colored band over the red body, not a solid red color.
- Option C: Wet chemical extinguishers are identified by a yellow-colored band.
- Option D: Carbon dioxide (CO₂) extinguishers are identified by a black-colored band.
Related Visual
- Visual 1: Infographic - A chart displaying different types of fire extinguishers, their color-coded bands (Red, Cream, Blue, Black, Yellow), the extinguishing agent inside, and the classes of fire (A, B, C, D, F/K) they are suitable for.
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of fire extinguisher types based on standard color coding as background academic context rather than a clinical decision trigger.
- In a hospital setting, nurses must be familiar with fire safety protocols, including the location and types of fire extinguishers.
- Knowing the correct extinguisher is critical for patient safety. Using a water extinguisher on an electrical or grease fire can worsen the situation, causing electrocution or spreading the fire.
- Nurses should remember the RACE (Rescue, Alarm, Confine, Extinguish/Evacuate) and PASS (Pull, Aim, Squeeze, Sweep) mnemonics for fire emergencies.
How to Approach the Question
- First, identify the key information in the question: 'Red colored fire extinguisher' and 'substance'.
- Recognize this as a factual recall question about fire safety standards.
- Visually analyze the image, which shows a standard, all-red fire extinguisher.
- Recall the color-coding system for fire extinguishers. A solid red color is the universal code for a water-based extinguisher.
- Evaluate the options provided, which are different extinguishing agents.
- Select 'Water' as it directly corresponds to the red color code.
Concept Tested & Keywords
- Concept Tested: Identification of fire extinguisher types based on standard color coding.
- Stem keywords: Red colored fire extinguisher, substance
- Lead-in keywords: Which
- Negative lead-in flag: false
Question ID
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Practise the full AIIMS CRE 2025
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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