IGNOU MIS 38 2026 2027 - Explain the Hierarchy of hazardous control with proper diagram.

Question

Explain the Hierarchy of hazardous control with proper diagram.

18 Aug 2026

Answer :

Word Count : 471

The hierarchy of hazardous control is a systematic approach used in Hazardous Material Management to eliminate or reduce the risks associated with hazardous substances. It ranks control measures according to their effectiveness, with the most reliable method placed at the top. The main objective is to protect workers, the public, property, and the environment by controlling hazards at their source rather than depending mainly on individual behaviour. The hierarchy can be represented as follows: ```text HIERARCHY OF HAZARDOUS CONTROL │ ▼ ┌─────────────────┐ │ 1. Elimination │ └─────────────────┘ │ ▼ ┌─────────────────┐ │ 2. Substitution │ └─────────────────┘ │ ▼ ┌─────────────────┐ │ 3. Engineering │ │ Controls │ └─────────────────┘ │ ▼ ┌─────────────────┐ │ 4. Administrative│ │ Controls │ └─────────────────┘ │ ▼ ┌─────────────────┐ │ 5. PPE │ │ Personal │ │ Protective │ │ Equipment │ └─────────────────┘ │ ▼ Least Effective ``` Elimination is the most effective control because it completely removes the hazardous material or hazardous activity from the workplace. For example, a process that uses a toxic chemical may be redesigned so

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