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Question 1
Which instrument is most commonly used by ventilation personnel to perform timed traverse measurements of air velocity in mine haulage roadways?
Correct Answer:
Vane anemometer
Question 2
What does static pressure represent in an underground mine ventilation airway?
Correct Answer:
The compressive potential energy exerted equally in all directions by the air against the airway walls
Question 3
In South African mine ventilation practice, what standard air density value is assumed for standard sea-level / baseline ventilation calculations?
Correct Answer:
1.20 kg/m³
Question 4
A mine airway has a length of 500 m, a perimeter of 12 m, a cross-sectional area of 9 m², and an Atkinson friction factor k = 0.010 N·s²/m⁴. If air flows at a mean velocity of 4.0 m/s, what is the pressure drop due to friction?
Correct Answer:
106.7 Pa
Question 5
When using a Pitot-static tube to measure airflow in a fan duct, why are the static pressure sensing holes positioned perpendicular to the airflow direction?
Correct Answer:
To eliminate the kinetic energy (velocity pressure) effect and sense pure static pressure
Question 1
Exam overview

About this Exam

Prepare with the Intermediate Mine Environmental Control Certificate Exam Practice Questions - Intermediate Certificate in Mine Environmental Control (South Africa) Exam practice quiz. This question bank includes 100 questions covering pressure, mine, underground, airway, and dust. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Intermediate Mine Environmental Control Certificate Exam Practice Questions - Intermediate Certificate in Mine Environmental Control (South Africa) Exam

This practice set contains 100 questions from the matching question bank and focuses on pressure, mine, underground, airway, and dust. 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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