MSHA FINAL UPDATED ACTUAL QUESTIONS AND
CORRECT ANSWERS
Question:
1. Operator
Answer:
Any owner, lease or other person who operates, controls, or supervises a coal or other mine or any
independent contractor performing services or construction at such mine
Question:
2. Agent
Answer:
Oversee the activities of any individuals at a mine, production, construction, maintain or survey crew
Question:
3. The operator has 15min to notify MSHA when ___, ____, or _____ happens.
Answer:
death, or the injury or entrapment of an individual could cause death
Question:
4. Imminent Danger
Answer:
The existence of any condition or practice in a mine which could reasonably be expected to cause death or
serious physical harm before such condition or practice can be abated
Question:
5. Unwarrantable Failure
Answer:
Aggravated conduct, constituting more than ordinary negligence, by a mine operator in relation to a
violation of the Act
Question:
6. What are the mine operator's rights?
Answer:
1.) Can object directly to MSHA
2.) File pre-penalty contest
3.) Close-out conference
4.) Contest the composed penalty
5.)Part 100 S&H conference
6.)Petition for modification & for extended abatement period
7.)Expedited hearing
Question:
7. Explosion Proof
, Answer:
The equipment enclosure must be engineered to contain any flash or explosion.
Question:
8. Intrinsically safe
Answer:
The device produces insufficient thermal or electrical energy to initiate an explosive mixture of methane
and air
Question:
9. Permissible
Answer:
All electrically operated equipment taken or used inky the last open crosscut of an entry or a room of ay
coal mine, should be designed, constructed, and installed in accordance with the specifications of MSHA
to ensure that it doesn't start a fire or an explosion
Question:
10. What should a investigation report include?
Answer:
Who was involved? What happened? How to keep it from happening again.
Question:
11. Two primary causes of accidents?
Answer:
Human and Environmental elements
Question:
12. Toxicity
Answer:
The potency of an agent or its inherent ability to cause harm
Question:
13. Exposure
Answer:
The dose of a harmful agent that the worker experiences
A. To have an adverse effect from a harmful agent, the dose of that agent must be sufficient to overwhelm
the body's natural ability defend and repair itself
B. The degree of exposure is the product of two variables. Concentration of the harmful agent and the
duration of exposure
Question:
14. If the noise level tested is above 85 dBA, what action is required by the operator?
Answer:
They have to design a hearing conservation plan for the affected miner
Question:
15. What is the max permissible exposure dBA level for a miner?
CORRECT ANSWERS
Question:
1. Operator
Answer:
Any owner, lease or other person who operates, controls, or supervises a coal or other mine or any
independent contractor performing services or construction at such mine
Question:
2. Agent
Answer:
Oversee the activities of any individuals at a mine, production, construction, maintain or survey crew
Question:
3. The operator has 15min to notify MSHA when ___, ____, or _____ happens.
Answer:
death, or the injury or entrapment of an individual could cause death
Question:
4. Imminent Danger
Answer:
The existence of any condition or practice in a mine which could reasonably be expected to cause death or
serious physical harm before such condition or practice can be abated
Question:
5. Unwarrantable Failure
Answer:
Aggravated conduct, constituting more than ordinary negligence, by a mine operator in relation to a
violation of the Act
Question:
6. What are the mine operator's rights?
Answer:
1.) Can object directly to MSHA
2.) File pre-penalty contest
3.) Close-out conference
4.) Contest the composed penalty
5.)Part 100 S&H conference
6.)Petition for modification & for extended abatement period
7.)Expedited hearing
Question:
7. Explosion Proof
, Answer:
The equipment enclosure must be engineered to contain any flash or explosion.
Question:
8. Intrinsically safe
Answer:
The device produces insufficient thermal or electrical energy to initiate an explosive mixture of methane
and air
Question:
9. Permissible
Answer:
All electrically operated equipment taken or used inky the last open crosscut of an entry or a room of ay
coal mine, should be designed, constructed, and installed in accordance with the specifications of MSHA
to ensure that it doesn't start a fire or an explosion
Question:
10. What should a investigation report include?
Answer:
Who was involved? What happened? How to keep it from happening again.
Question:
11. Two primary causes of accidents?
Answer:
Human and Environmental elements
Question:
12. Toxicity
Answer:
The potency of an agent or its inherent ability to cause harm
Question:
13. Exposure
Answer:
The dose of a harmful agent that the worker experiences
A. To have an adverse effect from a harmful agent, the dose of that agent must be sufficient to overwhelm
the body's natural ability defend and repair itself
B. The degree of exposure is the product of two variables. Concentration of the harmful agent and the
duration of exposure
Question:
14. If the noise level tested is above 85 dBA, what action is required by the operator?
Answer:
They have to design a hearing conservation plan for the affected miner
Question:
15. What is the max permissible exposure dBA level for a miner?
