NEET Biology: Disorders related to respiration-Occupational respiratory disorders Practice Questions
13 free multiple-choice questions on Disorders related to respiration-Occupational respiratory disorders (Human Physiology) for NEET Biology, each with the correct answer and a step-by-step explanation. Attempt a question, then reveal the solution to check your reasoning.
Practice thousands more NEET questions in the app →Q1. Which of the following is a chronic respiratory condition resulting from prolonged exposure to irritating dusts and fumes in an industrial setting?
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Correct answer: A — Chronic Obstructive Pulmonary Disease (COPD)
Chronic exposure to industrial pollutants leads to chronic lung diseases like COPD, which involves persistent inflammation and airflow limitation.
Q2. Which term describes a type of pneumoconiosis caused by exposure to coal dust in mining environments?
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Correct answer: D — Coal Worker's Pneumoconiosis (CWP)
Coal Worker's Pneumoconiosis (CWP) is the specific term used for lung diseases caused by chronic exposure to coal dust in miners.
Q3. Which occupational disease is caused by the inhalation of crystalline silica dust, commonly found in mining and quarrying industries?
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Correct answer: C — Silicosis
Silicosis is the specific occupational lung disease caused by inhaling crystalline silica dust particles, leading to fibrosis of the lung tissue.
Q4. Which occupational lung disease is primarily caused by the inhalation of crystalline silica dust?
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Correct answer: B — Silicosis
Silicosis is a chronic fibrotic lung disease caused by the inhalation of crystalline silica dust, commonly found in mining and sandblasting industries.
Q5. Which of the following is a crucial step in the occupational health management strategy for respiratory exposure?
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Correct answer: A — mandatory use of personal protective equipment (PPE)
The most fundamental step in managing respiratory exposure is preventing further damage by ensuring workers use appropriate Personal Protective Equipment (PPE) to minimize exposure.
Q6. Which condition is often associated with chronic exposure to dust and smoke in poorly ventilated industrial environments?
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Correct answer: C — Chronic Bronchitis
Chronic exposure to irritants like dust and smoke leads to inflammation and excessive mucus production, which are key features of Chronic Bronchitis.
Q7. Which type of dust exposure is most closely associated with the development of Coal Workers' Pneumoconiosis (CWP)?
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Correct answer: A — Coal dust
Coal Workers' Pneumoconiosis is specifically caused by the inhalation of coal dust particles.
Q8. Which condition is primarily caused by the inhalation of silica dust, leading to characteristic nodular lesions in the lungs?
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Correct answer: A — Silicosis
Silicosis is a chronic lung disease caused by the inhalation of crystalline silica dust, leading to fibrotic changes and nodule formation in the lungs.
Q9. The process by which inhaled dust particles cause scarring and hardening of the lung tissue is known as:
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Correct answer: A — Pulmonary fibrosis
The scarring and hardening of the lung tissue resulting from chronic exposure to respiratory pollutants is medically termed pulmonary fibrosis.
Q10. Occupational exposure to certain chemical fumes can lead to irritation and inflammation of the airways. This process is primarily an example of what type of physiological response?
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Correct answer: C — Inflammatory response
Exposure to irritant chemicals triggers an inflammatory response in the respiratory tract as the body attempts to clear the irritant, leading to inflammation and potential damage.
Q11. Exposure to fine crystalline silica dust during mining operations poses a significant risk because this material can cause irreversible damage by forming which type of pathological change in the lungs?
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Correct answer: C — Interstitial fibrosis
Exposure to crystalline silica dust is known to cause severe interstitial fibrosis (scarring) in the lung parenchyma, leading to restrictive lung diseases.
Q12. Which factor is generally considered the most significant determinant of the severity of respiratory damage resulting from occupational exposure?
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Correct answer: B — Concentration of the substance
The concentration of the inhaled substance and the duration of exposure are the primary factors that determine the severity of respiratory damage in occupational settings.
Q13. Exposure to high concentrations of toxic fumes and gases in welding or metalworking operations primarily leads to which type of respiratory irritation?
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Correct answer: D — Chemical pneumonitis
Exposure to toxic fumes (like those from welding) often causes chemical pneumonitis, characterized by inflammation and damage to the lung tissue due to chemical irritants.
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