Comprehensive FMC Mining & Working Exam Guide: Questions, Answers, and Explanations FMC - Winning & Working (MCQs)1. In India, a coal seam is termed as "Thick Seam" when its thickness is equal to or more than: (1) 2.8 m (2) 3 m (3) 3.6 m (4) 4.5 m (5) 4.8 m ✅2. If a shaft is more than ___________ m ...