Certificate In Strata Control - Metalliferous Exam Practice Questions - Certificate In Strata Control - Metalliferous (South Africa) Exam

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Which characteristic makes stiff composite packs preferable to traditional timber mat packs in deep tabular stopes with high convergence rates?

Composite packs have higher initial stiffness and yield capability, reducing initial stope closure and bed separation Composite packs are completely rigid and do not compress under stope closure Timber mat packs have superior initial stiffness compared to concrete-timber composite packs Composite packs are significantly lighter and easier to assemble manually than pure timber packs

Correct Answer:

Composite packs have higher initial stiffness and yield capability, reducing initial stope closure and bed separation

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