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Latest AIIMS CRE Respiratory Laboratory Assistant Exam Question (Objective Questions), MCQ in English

Subjects : Respiratory Laboratory, Quantitative Aptitude, General Knowledge, Computer

Question Bank AIIMS CRE Respiratory Laboratory Assistant Exam - English
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Respiratory Laboratory

Question 1Single Answer
What is the primary function of the respiratory system?
  1. A
    To digest food
  2. B
    To filter waste
  3. C
    To circulate blood
  4. D
    To supply oxygen to the blood
Question 2Single Answer
Which part of the respiratory system is responsible for gas exchange?
  1. A
    Trachea
  2. B
    Alveoli
  3. C
    Bronchi
  4. D
    Diaphragm
Question 3Single Answer
What is the name of the structure that prevents food from entering the trachea?
  1. A
    Epiglottis
  2. B
    Glottis
  3. C
    Larynx
  4. D
    Pharynx
Question 4Single Answer
Which muscle is primarily responsible for inhalation?
  1. A
    Intercostal muscles
  2. B
    Rectus abdominis
  3. C
    Pectoralis major
  4. D
    Diaphragm
Question 5Single Answer
What is the process by which oxygen and carbon dioxide are exchanged in the alveoli?
  1. A
    Diffusion
  2. B
    Ventilation
  3. C
    Perfusion
  4. D
    Respiration
Question 6Single Answer
Which part of the respiratory system warms and humidifies incoming air?
  1. A
    Bronchioles
  2. B
    Trachea
  3. C
    Nasal cavity
  4. D
    Alveoli
Question 7Single Answer
What is anatomical dead space in the respiratory system?
  1. A
    Air in the alveoli
  2. B
    Air in the diaphragm
  3. C
    Air in the blood
  4. D
    Air in the conducting airways
Question 8Single Answer
What is the name of the cartilage that forms the Adam’s apple?
  1. A
    Cricoid cartilage
  2. B
    Arytenoid cartilage
  3. C
    Epiglottis
  4. D
    Thyroid cartilage
Question 9Single Answer
Which gas is primarily exhaled from the lungs?
  1. A
    Oxygen
  2. B
    Nitrogen
  3. C
    Carbon dioxide
  4. D
    Hydrogen
Question 10Single Answer
What is the role of cilia in the respiratory system?
  1. A
    To produce mucus
  2. B
    To filter and move particles out
  3. C
    To exchange gases
  4. D
    To contract airways
Question 11Single Answer
Which structure connects the pharynx to the bronchi?
  1. A
    Trachea
  2. B
    Larynx
  3. C
    Esophagus
  4. D
    Alveoli
Question 12Single Answer
What is the term for the volume of air inhaled or exhaled during normal breathing?
  1. A
    Total lung capacity
  2. B
    Residual volume
  3. C
    Vital capacity
  4. D
    Tidal volume
Question 13Single Answer
Which part of the brain regulates the respiratory rate?
  1. A
    Cerebellum
  2. B
    Hypothalamus
  3. C
    Medulla oblongata
  4. D
    Thalamus
Question 14Single Answer
What is the name of the smallest branches of the bronchial tree?
  1. A
    Bronchi
  2. B
    Tracheoles
  3. C
    Alveoli
  4. D
    Bronchioles
Question 15Single Answer
Which component of blood carries oxygen in the respiratory system?
  1. A
    Plasma
  2. B
    White blood cells
  3. C
    Platelets
  4. D
    Hemoglobin
Question 16Single Answer
What is the purpose of surfactant in the alveoli?
  1. A
    To increase surface tension
  2. B
    To produce mucus
  3. C
    To filter air
  4. D
    To reduce surface tension
Question 17Single Answer
Which structure is known as the voice box?
  1. A
    Pharynx
  2. B
    Epiglottis
  3. C
    Trachea
  4. D
    Larynx
Question 18Single Answer
What is the name of the process of moving air into and out of the lungs?
  1. A
    Ventilation
  2. B
    Diffusion
  3. C
    Perfusion
  4. D
    Osmosis
Question 19Single Answer
Which part of the respiratory system contains vocal cords?
  1. A
    Pharynx
  2. B
    Bronchi
  3. C
    Trachea
  4. D
    Larynx
Question 20Single Answer
What is the average number of alveoli in human lungs?
  1. A
    100 million
  2. B
    700 million
  3. C
    500 million
  4. D
    300 million
Question 21Single Answer
Which gas makes up the majority of inhaled air?
  1. A
    Oxygen
  2. B
    Nitrogen
  3. C
    Carbon dioxide
  4. D
    Argon
Question 22Single Answer
What is the term for the maximum volume of air the lungs can hold?
  1. A
    Tidal volume
  2. B
    Vital capacity
  3. C
    Residual volume
  4. D
    Total lung capacity
Question 23Single Answer
Which structure divides the nasal cavity into two sections?
  1. A
    Pharynx
  2. B
    Turbinates
  3. C
    Sinuses
  4. D
    Septum
Question 24Single Answer
What is the primary source of energy for the respiratory muscles?
  1. A
    Proteins
  2. B
    Fatty acids
  3. C
    Glucose
  4. D
    Ketones
Question 25Single Answer
Which part of the respiratory system is lined with pseudostratified ciliated columnar epithelium?
  1. A
    Alveoli
  2. B
    Trachea
  3. C
    Bronchioles
  4. D
    Lungs
Question 26Single Answer
What is the term for the volume of air remaining in the lungs after maximum exhalation?
  1. A
    Tidal volume
  2. B
    Inspiratory reserve volume
  3. C
    Vital capacity
  4. D
    Residual volume
Question 27Single Answer
Which nerve controls the diaphragm?
  1. A
    Vagus nerve
  2. B
    Trigeminal nerve
  3. C
    Phrenic nerve
  4. D
    Glossopharyngeal nerve
Question 28Single Answer
What is the name of the air-filled cavities surrounding the nasal cavity?
  1. A
    Alveoli
  2. B
    Bronchioles
  3. C
    Sinuses
  4. D
    Turbinates
Question 29Single Answer
Which part of the respiratory system is shared with the digestive system?
  1. A
    Larynx
  2. B
    Trachea
  3. C
    Pharynx
  4. D
    Esophagus
Question 30Single Answer
What is the primary stimulus for breathing?
  1. A
    Low oxygen levels
  2. B
    High carbon dioxide levels
  3. C
    Low blood pressure
  4. D
    High blood sugar
Question 31Single Answer
Which structure in the lungs is surrounded by capillaries for gas exchange?
  1. A
    Bronchi
  2. B
    Bronchioles
  3. C
    Trachea
  4. D
    Alveoli
Question 32Single Answer
What is the term for the act of inhaling?
  1. A
    Expiration
  2. B
    Diffusion
  3. C
    Ventilation
  4. D
    Inspiration
Question 33Single Answer
Which part of the respiratory system is reinforced by C-shaped cartilage rings?
  1. A
    Bronchi
  2. B
    Trachea
  3. C
    Larynx
  4. D
    Pharynx
Question 34Single Answer
What is the approximate pH of blood maintained by the respiratory system?
  1. A
    35–45
  2. B
    8–0
  3. C
    6–8
  4. D
    0–2
Question 35Single Answer
Which gas is transported by hemoglobin in red blood cells?
  1. A
    Nitrogen
  2. B
    Argon
  3. C
    Carbon monoxide
  4. D
    Oxygen
Question 36Single Answer
What is the term for the collapse of alveoli due to lack of surfactant?
  1. A
    Atelectasis
  2. B
    Pneumothorax
  3. C
    Emphysema
  4. D
    Bronchitis
Question 37Single Answer
Which part of the respiratory system is also called the windpipe?
  1. A
    Trachea
  2. B
    Larynx
  3. C
    Pharynx
  4. D
    Bronchus
Question 38Single Answer
What is the role of the pleural membranes in the lungs?
  1. A
    Gas exchange
  2. B
    Lubrication and protection
  3. C
    Mucus production
  4. D
    Air filtration
Question 39Single Answer
Which muscle assists the diaphragm during forced inhalation?
  1. A
    Internal intercostals
  2. B
    Rectus abdominis
  3. C
    External intercostals
  4. D
    Latissimus dorsi
Question 40Single Answer
What is the name of the process where blood is oxygenated in the lungs?
  1. A
    Ventilation
  2. B
    Respiration
  3. C
    Diffusion
  4. D
    Perfusion
Question 41Single Answer
Which structure in the respiratory system is lined with simple squamous epithelium?
  1. A
    Alveoli
  2. B
    Bronchi
  3. C
    Trachea
  4. D
    Pharynx
Question 42Single Answer
What is the term for the volume of air that can be forcibly exhaled after a normal exhalation?
  1. A
    Tidal volume
  2. B
    Inspiratory reserve volume
  3. C
    Expiratory reserve volume
  4. D
    Residual volume
Question 43Single Answer
Which part of the respiratory system contains goblet cells that secrete mucus?
  1. A
    Alveoli
  2. B
    Larynx
  3. C
    Bronchi
  4. D
    Diaphragm
Question 44Single Answer
What is the primary source of oxygen for the body?
  1. A
    Food
  2. B
    Air
  3. C
    Water
  4. D
    Blood
Question 45Single Answer
Which condition results from low oxygen levels in the blood?
  1. A
    Hypoxemia
  2. B
    Hypercapnia
  3. C
    Acidosis
  4. D
    Alkalosis
Question 46Single Answer
What is the name of the space between the vocal cords?
  1. A
    Epiglottis
  2. B
    Larynx
  3. C
    Glottis
  4. D
    Pharynx
Question 47Single Answer
Which part of the respiratory system is affected by laryngitis?
  1. A
    Trachea
  2. B
    Alveoli
  3. C
    Bronchi
  4. D
    Larynx
Question 48Single Answer
What is the term for the volume of air that can be forcibly inhaled after a normal inhalation?
  1. A
    Inspiratory reserve volume
  2. B
    Tidal volume
  3. C
    Expiratory reserve volume
  4. D
    Residual volume
Question 49Single Answer
Which gas is a byproduct of cellular respiration?
  1. A
    Oxygen
  2. B
    Nitrogen
  3. C
    Helium
  4. D
    Carbon dioxide
Question 50Single Answer
What is the role of the turbinates in the nasal cavity?
  1. A
    Gas exchange
  2. B
    Voice production
  3. C
    Air filtration and humidification
  4. D
    Mucus secretion
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