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Question 1
In a conventional gold mining stope, what is the mandatory sequence of operations in a standard shift cycle prior to drilling the face?
Correct Answer:
Watering down, barring down, installing temporary/permanent support, marking off face
Question 2
A 37 kW scraper winch moves ore along a 100 m face gully. If the scoop carries 1.2 tonnes per trip and completes a round trip in 3 minutes, calculate the theoretical maximum hourly scraping capacity of the winch.
Correct Answer:
24 tonnes/hour
Question 3
Under South African underground mining practices, how frequently must a Shift Boss inspect every working place under their jurisdiction during an active production shift?
Correct Answer:
At least once during every working shift
Question 4
A battery locomotive hauls a train of 10 hoppers, each carrying 4 tonnes of ore. If the tramming cycle (loading, transit, dumping, return) takes 30 minutes, how many tonnes can be moved in an 8-hour shift assuming an overall equipment effectiveness (OEE) of 75%?
Correct Answer:
480 tonnes
Question 5
In a narrow-tabular platinum stope (stoping width 1.1 m), a panel face of length 30 m is blasted with an advance of 1.0 m per blast. If the ore density is 3.2 t/m³, what is the total tonnage broken per blast?
Correct Answer:
105.6 tonnes
Question 1
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About this Exam

Prepare with the Mine Overseer's Certificate of Competency Exam Practice Questions - Mine Overseer's Certificate of Competency Examination (South Africa) Exam practice quiz. This question bank includes 100 questions covering section, mine, mhsa, shift, and underground. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Mine Overseer's Certificate of Competency Exam Practice Questions - Mine Overseer's Certificate of Competency Examination (South Africa) Exam

This practice set contains 100 questions from the matching question bank and focuses on section, mine, mhsa, shift, and underground. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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