Electrical Safety & PPE MCQ
LOTO, PPE, First Aid, Fire Safety — Gulf companies mein safety ka separate exam hota hai. 5 parts mein divide — life-saving knowledge.
Electrical Safety — Life Saving Knowledge
Main Mohammad Arif – 12+ saal Gulf aur India ke electrical supervisor. Gulf companies mein safety ka separate interview aur exam hota hai. LOTO, PPE, First Aid, Fire Safety, PTW – ye sab topics life-saving hain. Ek galati jaan bhi le sakti hai.
Electrical safety sirf compliance nahi, hazard recognition aur proactive mitigation hai. Har worker ko basic safety knowledge hona chahiye – chahe wo electrician ho ya supervisor.
PPE (Personal Protective Equipment)
Essential PPE
- Safety Helmet – non-conductive, head protection.
- Insulated Gloves – voltage class according to working voltage.
- Safety Shoes – non-conductive sole, toe protection.
- Safety Goggles / Face Shield – arc flash protection.
- Hi-Vis Vest – visibility on site.
Glove Voltage Classes
- Class 00 – 500V AC.
- Class 0 – 1000V AC.
- Class 1 – 7500V AC.
- Class 2 – 17000V AC.
- Class 4 – 36000V AC.
PPE inspection har use se pehle karo – gloves mein pin holes, helmet mein cracks, shoes ki sole check karo. Damaged PPE immediately replace karo, compromise mat karo.
LOTO (Lock Out Tag Out)
LOTO ek formal energy isolation procedure hai – maintenance ke dauran accidental equipment start hone se worker ko protect karta hai.
1. Prepare – Identify all energy sources and hazards.
2. Notify – Affected workers ko inform karo.
3. Shutdown – Equipment properly shut down karo.
4. Isolate – Energy sources ko lock/tag karo.
5. Try – Verify isolation effective hai (try to start).
6. Work – Maintenance start karo.
Group LOTO: Multiple workers ke liye group lockout box use hota hai – har worker apna individual lock lagata hai. Sirf wahi worker apna lock hata sakta hai jisne lagaya tha.
First Aid – Electrical Shock & Burns
Shock Victim – First Step
- Power off source immediately.
- If cannot turn off, use non-conductive material (dry wood, plastic) to separate victim.
- Do NOT touch victim with bare hands – rescuer bhi shock kha sakta hai.
CPR (If Unconscious / No Breathing)
- Call emergency (ambulance) immediately.
- 30 chest compressions : 2 rescue breaths – continue until help arrives.
- Use AED if available – cardiac rhythm restore karta hai.
Fire Safety – Electrical Fires
| Fire Class | Type | Extinguisher Type |
|---|---|---|
| Class A | Wood, paper, cloth | Water, Foam, ABC powder |
| Class B | Flammable liquids (oil, petrol) | Foam, CO2, ABC powder |
| Class C | Electrical fires (live equipment) | CO2, Dry Chemical Powder (ABC) |
| Class D | Metal fires | Special dry powder |
Permit to Work (PTW) System
- PTW ek formal authorization system hai – hazardous work shuru karne se pehle risk assessment, precautions, aur sign-off process.
- Hot Work Permit – welding, cutting, grinding (spark/heat generating) ke liye mandatory.
- Confined Space Permit – gas testing, ventilation, attendant, low voltage tools.
- HV Switching Permit – high voltage switching operations ke liye authorized person required.
- Safety Officer sign-off high-risk activities ke liye mandatory hai Gulf sites pe.
Gulf Summer – Heat Stress Prevention
- Gulf countries mein summer temperature 45°C+ hoti hai – heat stroke ek serious risk hai.
- Hydration schedule – regular water breaks, avoid peak afternoon hours.
- Shaded rest areas – mandatory for outdoor workers.
- Work-rest cycles – follow local labour laws (e.g., UAE noon work ban).
Gulf Interview – Safety Ke Sawaal
- LOTO ka complete procedure step-by-step batao – 6 steps yaad rakhna.
- Shock victim ko kaise rescue karte hain? – Power off -> non-conductive separation -> CPR if needed.
- Electrical fire mein konsa extinguisher? – CO2 / Dry Chemical (Class C).
- PTW system kya hai aur kaise kaam karta hai? – Authorization, risk assessment, sign-off.
- What is Arc Flash? – Sudden electrical explosion, intense heat/light – proper PPE (face shield, arc rated clothing) required.
- Confined space safety? – Gas testing, ventilation, standby attendant, communication.
Safety Guide & PPE Checklist
Complete electrical safety guide – LOTO steps, PPE inspection, first aid, fire extinguisher types.