S Sonali Mishra 🎓 Achiever ⭐ 4.53K Points 📊 Railway Engineering Q. The mass of a rail chair is about ? (A) 10 kg (B) 15.6 kg (C) 22 kg (D) 30 kg 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (C) 22 kg