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MCQs

Total Questions : 360 | Page 1 of 36 pages
Question 1. Which gas is mainly produced due to incomplete burning of wood?
  1.    CO
  2.    SO₂
  3.    NO₂
  4.    NO₃
 Discuss Question
Answer: Option A. -> CO
Answer: (a).CO
Question 2. Which of the following is involved in production of carboxy haemoglobin?
  1.    CO
  2.    SO₂
  3.    NO₂
  4.    NO₃
 Discuss Question
Answer: Option A. -> CO
Answer: (a).CO
Question 3. The maximum size of fly ash is ___________
  1.    1μm
  2.    100μm
  3.    1000μm
  4.    10μm
 Discuss Question
Answer: Option C. -> 1000μm
Answer: (c).1000μm
Question 4. X ray films are a source of which of the following gas?
  1.    SO₂
  2.    CO₂
  3.    NO₂
  4.    SO₃
 Discuss Question
Answer: Option C. -> NO₂
Answer: (c).NO₂
Question 5. Which of the following is a liquid form of aerosol?
  1.    Fume
  2.    Dust
  3.    Mist
  4.    Smoke
 Discuss Question
Answer: Option C. -> Mist
Answer: (c).Mist
Question 6. The pulmonary section of the respiratory tract consists of ___________
  1.    Nose and mouth as well as down till epiglottis and larynx
  2.    Bronchi down till the end of bronchiole
  3.    Respiratory bronchiole, alveoli and alveoli ducts
  4.    Alveoli ducts and alveoli
 Discuss Question
Answer: Option C. -> Respiratory bronchiole, alveoli and alveoli ducts
Answer: (c).Respiratory bronchiole, alveoli and alveoli ducts
Question 7. What is the effect of ozone on human respiratory system?
  1.    It has higher affinity to bind with haemoglobin and does not allow binding of oxygen
  2.    It causes the disfigurement of the alveoli reducing the surface area for gaseous transfer
  3.    It damages lung tissues and aggravates asthma
  4.    All of the mentioned
 Discuss Question
Answer: Option C. -> It damages lung tissues and aggravates asthma
Answer: (c).It damages lung tissues and aggravates asthma
Question 8. Particles of what size are filtered by the nasal passage?
  1.    >10micrometre
  2.    >500 micrometre
  3.    >1 mm
  4.    >5 micrometre
 Discuss Question
Answer: Option A. -> >10micrometre
Answer: (a).>10micrometre
Question 9. The velocity of air reduces to zero by the time it reaches the bronchi.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 10. What is the primary function(s) of the alveoli?
  1.    Transfer of oxygen to the blood
  2.    Removal of carbon dioxide from the blood
  3.    Transfer of toxic substances to the blood
  4.    All of the mentioned
 Discuss Question
Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned

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