CMSP Safety, Health & Risk Management 2

Question 1

Which risk assessment methodology uses a bow-tie diagram to visualize both the causes of a hazardous event and its consequences?

Accepted Answer

Bow-Tie Analysis

Answer

Bow-Tie Analysis places the hazardous event at the center, with threats on the left (fault tree) and consequences on the right (event tree), making it ideal for visualizing barriers.

Question 2

Under MSHA regulations, what is the maximum permissible exposure limit (PEL) for respirable coal dust in underground coal mines?

Accepted Answer

1.5 mg/m³

Answer

MSHA's 2014 rule set the PEL for respirable coal dust at 1.5 mg/m³ (down from 2.0 mg/m³) to reduce the risk of black lung disease.

Question 3

A mine safety manager conducts a risk matrix assessment and rates a hazard as 'likely' with 'major' severity. What is the most appropriate next action?

Accepted Answer

Implement immediate corrective controls and re-evaluate

Answer

A 'likely' probability combined with 'major' severity places the risk in the high or critical category, requiring immediate corrective action before work continues.

Question 4

Which of the following best describes the hierarchy of controls as applied in mine safety?

Accepted Answer

Elimination → Substitution → Engineering → Administrative → PPE

Answer

The hierarchy of controls prioritizes eliminating hazards first, then substitution, engineering controls, administrative controls, and PPE as the last line of defense.

Question 5

What does ALARA stand for in the context of radiation and occupational health exposure?

Accepted Answer

As Low As Reasonably Achievable

Answer

ALARA means 'As Low As Reasonably Achievable' and is a radiation protection principle requiring that exposures be kept as low as possible beyond just meeting regulatory limits.

(CMSP) Certified Mine Safety Professional Practice Test

(CMSP) Certified Mine Safety Professional Practice Test

CMSP Safety, Health & Risk Management 2