Miner Health


Question Answer Notes
While it can take years to develop, early symptoms of this disease include cough, shortness of breath, and chest tightness. Pneumoconiosis or Black Lung  
You are working in a noisy environment and your boss moves you to another work area so you are not overexposed. Which control method is this? A. Elimination; B. Substitution; C. Engineering; D. Administrative; E. PPE D. Administrative  
True or false: Silicosis is a progressive disease that cannot be cured. True  
Name two health effects resulting from exposure to cold temperatures. Hypothermia; frostbite; trench foot; chilblains  
Dermatitis is a result of exposure to what type of hazard? A. Radiation; B. Chemical; C. Temperature; D. Electrical B. Chemical  
True or false: If you are always exposed below the PEL, you will have no adverse health effects. False  
Rule of thumb: If you have to yell to be heard from ____ feet away, the environment is too loud. A. 1; B. 3; C. 6; D. 9 B. 3  
True or false: Symptoms of asbestosis occur right away. False  
True or false: There has been an increase in CWP since the late 1990s. True Removal from exposure can stop the progression of CWP.
How does sleep deprivation impact your safety at work? A. You can become irritable; B. Your reaction time can be slowed; C. Your immune system is impaired B. Your reaction time can be slowed  
What are MSHA’s exposure limits called? A. Permissible Exposure Limits (PELs); B. Recommended Exposure Limits (RELs); C. Occupational Exposure Limits (OELs); D. Threshold Limit Values (TLVs) A. Permissible Exposure Limits (PELs)  
What are the three “how” questions that determine your dose? How much?; How long?; How often?  
What is the action level for noise? A. 80 dBA TWA8; B. 85 dBA TWA8; C. 90 dBA TWA8; D. 95 dBA TWA8 B. 85 dBA TWA8  
Which noise monitor is used for compliance sampling? A. Noise indicator; B. Noise dosimeter; C. Sound level meter B. Noise dosimeter  
Name three elements of a Hearing Conservation Program. Exposure assessment; protective devices; audiometric testing; education and training; recordkeeping  
In 2012, the IARC classified diesel particulate matter as what? A. Known human carcinogen (1); B. Probable human carcinogen (2A); C. Possible human carcinogen (2B); D. Not classifiable as a human carcinogen (3) A. Known human carcinogen (1)  
Which are the two most prevalent illnesses and diseases reported in mining? A. Musculoskeletal disorders and dermatitis; B. Hearing loss and heat-related injuries; C. Musculoskeletal disorders and hearing loss; D. Hearing loss and respiratory diseases C. Musculoskeletal disorders and hearing loss  
Chemical exposure limits are based on which route of entry? A. Inhalation; B. Skin absorption; C. Ingestion; D. Injection A. Inhalation  
An MSHA exposure limit listed as a time-weighted average means you can be exposed for how many minutes in a day before overexposure? A. 4 hours; B. 6 hours; C. 8 hours; D. 10 hours C. 8 hours  
What is the MSHA PEL for noise given as a TWA8? A. 85 dBA TWA8; B. 90 dBA TWA8; C. 90 105 dBA TWA8; D. 115 dBA TWA8 B. 90 dBA TWA8  
At which noise level do you need dual hearing protection? A. 90 dB; B. 95 dB; C. 100 dB; D. 105 dB D. 105 dB  
According to MSHA, which is the maximum level of noise that may not be exceeded? A. 95 dB; B. 105 dB; C. 115 dB; D. 125 dB C. 115 dB  
What percent of miners will experience NIHL by the time they are 50 years old? A. 20%; B. 40%; C. 60%; D. 80% C. 60%  
How does asbestos cause lung disease? A. It is toxic to immune cells; B. It overloads immune cells; C. It physically damages immune cells; D. It does not cause lung disease C. It physically damages immune cells  
True or false: Going ten days with only six hours of sleep each night is as impairing as going 24 hours without sleep. True  
The original MSHA PELs are based on the 1972 and 1973 exposure limits from which agency? A. OSHA; B. NIOSH; C. AIHA; D. ACGIH D. ACGIH  
You are exposed to 95 dBA for three hours. Is your exposure over the MSHA PEL? (Exchange rate is 5 dB.) No  
What size particle are considered respirable? A. < 10 µm; B. < 25 µm; C. < 50 µm; D. < 100 µm A. < 10 µm  
What size particles are visible to the human eye? A. > 29 µm; B. > 10 µm; C. > 100 µm; D. > 76 µm A. > 29 µm  
Name three harmful effects of sleep deprivation. Reduced cognitive function; Reduced immune response; Increased obesity and diabetes; Increased addiction; Increased mental health disorders; Increased heart problems; Increased rates of some cancers; Increased accidents and injuries  
Based on a half-life of five hours, if you consume 300 mg of caffeine at 10 a.m., how much caffeine would remain in your bloodstream at 8 p.m.? 75 mg  
Name three health effects resulting from exposure to hot temperatures. Burns; heat fatigue; heat rash; heat syncope (collapse); heat cramps; heat exhaustion; heat stroke  
How long can someone be exposed to 105 dBA with an exchange rate of 5 dB? A. 8 hours; B. 4 hours; C. 2 hours; D. 1 hour D. 1 hour  
Which can cause a progressive lung disease if inhaled? A. Asbestos; B. Coal; C. Quartz; D. Iron C. Quartz  
Breathing air that is below _____ oxygen is considered oxygen-deficient for humans. A. 16.5%; B. 19.5%; C. 21.0%; D. 23.0% B. 19.5%  
True or false: Removal from exposure to coal dust can stop the progression of CWP True  
Match the respiratory location and the defense mechanism. 1. Nose and mouth; 2. Trachea and bronchi; 3. Alveoli: A. Mucuciliary escalator; B. Macrophages; C. Mechanical filtration 1. Nose and mouth: C. Mechanical filtration; 2. Trachea and bronchi: A. Mucociliary escalator; 3. Alveoli: B. Macrophages  
Which body parts are exposed to the most hazards in the workplace? A. Eyes; B. Hands; C. Ears; D. Feet B. Hands  
True or false: All substances are poisons. True “All substances are poisons; there is none which is not a poison. The right dose differentiates a poison and a remedy.” — Paracelsus
True or false: Everyone reacts to stress and fatigue in the same way. False  
Name two physical signs of fatigue. Rubbing eyes; repeated yawning; staring blankly; frequent/long blinks; fidgeting; head nodding; difficulty keeping eyes open  
Name one work practice for avoiding musculoskeletal disorders. Minimize pressure points; provide clearance; move, exercise, stretch; comfortable environment; work in neutral postures; reduce excessive force; reduce excessive motion; keep things in easy reach; minimize fatigue/static load; work at proper heights  
Staying awake for 24 hours has the equivalent impairment as a blood alcohol content of what? A. 0.05% BAC; B. 0.1% BAC; C. 1% BAC; D. 2% BAC B. 0.1% BAC  
What does NIHL stand for? Noise-induced hearing loss  
True or false: You will know immediately and see the disease progress rapidly when you have developed a pneumoconiosis such as silicosis or asbestosis. False  
Which of the following is not a factor determining your dose to airborne particles? A. Particle size; B. Respiratory rate; C. Density; D. Lung volume D. Lung volume  
In which region of the lungs are we most concerned about particles depositing? A. Nasopharyngeal region; B. Tracheobrachiol region; C. Pulmonary region C. Pulmonary region  
Which is a disease of the lungs due to inhalation of dust, characterized by inflammation, coughing, and fibrosis? A. Asthma; B. Pneumoconiosis; C. Lung cancer; D. Bronchitis B. Pneumoconiosis  
How many types of silicosis are there? A. 1; B. 2; C. 3; D. 4 C. 3  
Silica is composed of what mineral? A. Quartz; B. Amosite; C. Crocidolite; D. Sand A. Quartz  
Which pneumoconiosis causes scarring of the lungs by piercing the macrophages and developing fibrosis? A. CWP; B. Asbestosis; C. Silicosis B. Asbestosis  
What is the one thing that silica, coal dust, and asbestos all have in common? They all cause fibrotic scarring and/or are pneumoconiosis  
Stress and fatigue have direct imapcts on your ability to work safely. Name one thing you can do to combat some of the negative effects of shift work and sleep deprivation. Prioritize sleep and/or use sleep strategies; eat a healthy diet; avoid using caffeine and alcohol if you are on alternate shifts  
Which of the following is not a disease caused by coal dust? A. CWP; B. NIHL; C. Silicosis; D. COPD B. NIHL