EM 322 BONUS QUIZ (FINAL) 2024-2025

Are devices used to control and adjust the quantity of airflow in the mine.

• Bulkhead

• line brattice

• Regulators

• Auxiliary fan and tubing

Are used to direct air through the mine. They keep intake air from short-circuiting to the exhaust before it reaches the working area

• Bulkhead

• line brattice

• Regulators

• Auxiliary fan and tubing

These used to: (1) (for multi-level mines) direct intake air into a development drift that requires ventilation, or (2) (for single level mines) channel intake air from the last open crosscut to the working areas

• Bulkhead

• line brattice

• Regulators

• Auxiliary fan and tubing

Are used to provide sufficient airflow to working areas during mining operations.

• Bulkhead

• line brattice

• Regulators

• Auxiliary fan and tubing

Airlock is required in which following case/s?

• When opening a door through a bulkhead when conditions on the other side are known

• When opening a refuge chamber in working areas

• When opening a refuge chamber or barricade in irrespirable atmospheres

• When establishing fresh air base

A smoke tube is a device used to:

• Determine oxygen content of the mine atmosphere

• Determine direction and velocity of airflow

• Detect carbon monoxide

• Detect leaks in temporary bulkheads

The traverse method is used when:

• Taking a reading with a smoke tube

• Taking a reading with an anemometer

• Erecting a temporary bulkhead

• None of the choices

Mine rescue teams should alter existing ventilation:

• Only when directed to do so by the command center.

• When the team captain decides to do so

• When they encounter high concentrations of carbon monoxide

• When they encounter smoke

Mine rescue teams erecting temporary bulkheads in atmospheres with elevated hydrogen or methane readings should

• Use only inflatable seals.

• Leave a corner of the bulkhead open for the hydrogen or methane to exit.

• Use Non-sparking tools and nails.

• Mine rescue teams should never enter such atmospheres.

During rescue team explorations, the main fan:

• Should be kept running.

• Should be continually monitored.

• Both choices is correct

• None of the choices