What is HEMM in mining?

HEMM stands for Heavy Earth Moving Machinery, used in surface mining for excavation, loading, and transport operations.

Which DGMS regulation governs machinery maintenance?

Regulation 127 of Coal Mines Regulations 2017 governs maintenance and safety of machinery in mines.

DGMS recommends a haul road gradient not exceeding 1 in 16 (6.25%) with adequate berms and drainage.

CAS stands for Collision Avoidance System, mandatory in large opencast mines as per DGMS Circular 18/2020.

Complete Classification of Heavy Earth Moving Machinery (HEMM) – DGMS Exam Notes | CMR 2017

Classification, Operation & Safety (DGMS Notes)

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