CMSP Mine Ventilation & Atmospheric Monitoring 3

Question 1

Atkinson's equation (H = R × Q²) relates which three ventilation parameters?

Accepted Answer

Pressure loss, airway resistance, and airflow quantity

Answer

Atkinson's equation states that pressure loss (H) equals resistance (R) multiplied by the square of the airflow quantity (Q²), and is the fundamental equation used to design and analyze mine ventilation networks.

Question 2

What is 'white damp' (also called 'carbon monoxide') and why is it particularly dangerous in mines?

Accepted Answer

Odorless, colorless carbon monoxide that impairs oxygen transport in the blood with little warning

Answer

White damp (CO) is colorless and odorless, and at low concentrations causes symptoms that can be mistaken for fatigue; it binds to hemoglobin with much greater affinity than oxygen, causing rapid incapacitation.

Question 3

According to MSHA regulations, what must happen to ventilation systems in an underground coal mine before blasting operations?

Accepted Answer

The area must be pre-shift examined and air quantities confirmed adequate before and after blasting

Answer

Pre-shift and on-shift examinations of ventilation conditions are required before blasting, and ventilation must be sufficient to clear blasting fumes (including CO and NO2) from the working area before miners reenter.

Question 4

In mine ventilation design, when airways are connected in SERIES, what is the effect on total resistance?

Accepted Answer

Total resistance is the sum of individual airway resistances

Answer

When airways are in series, air must travel through each one sequentially, so resistances add directly; this is analogous to resistors in series in an electrical circuit.

Question 5

What is the primary purpose of a 'line brattice' in underground mine ventilation?

Accepted Answer

To direct auxiliary ventilation air to the working face in a dead-end heading

Answer

A line brattice is a curtain of brattice cloth installed along the rib of an entry to create a duct that forces fresh air to the working face while return air travels back on the other side.

(CMSP) Certified Mine Safety Professional Practice Test

(CMSP) Certified Mine Safety Professional Practice Test

CMSP Mine Ventilation & Atmospheric Monitoring 3