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Latest DHFWS Puducherry Health Assistant Exam Question (Objective Questions), MCQ in English

Subjects : Health Assistant

Question Bank DHFWS Puducherry Health Assistant Exam Paper 2 - English
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Health Assistant

Question 1Single Answer
What is the primary focus of microbiology in the context of public health?
  1. A
    Study of large animals
  2. B
    Study of microorganisms invisible to the naked eye
  3. C
    Study of chemical compounds
  4. D
    Study of plant biology
Question 2Single Answer
Which of the following is a type of microorganism studied in microbiology?
  1. A
    Insects
  2. B
    Trees
  3. C
    Bacteria
  4. D
    Mammals
Question 3Single Answer
Microbes play a major role in which of the following processes?
  1. A
    Photosynthesis
  2. B
    Nutrient cycling
  3. C
    Mechanical engineering
  4. D
    Weather forecasting
Question 4Single Answer
Which microorganism is commonly associated with food spoilage?
  1. A
    Viruses
  2. B
    Fungi
  3. C
    Algae
  4. D
    Protozoa
Question 5Single Answer
Which of the following is a beneficial role of microbes in biotechnology?
  1. A
    Causing diseases
  2. B
    Producing antibiotics
  3. C
    Destroying crops
  4. D
    Polluting water
Question 6Single Answer
What is the shape of bacilli bacteria?
  1. A
    Spherical
  2. B
    Spiral
  3. C
    Rod-shaped
  4. D
    Comma-shaped
Question 7Single Answer
Cocci bacteria are characterized by which shape?
  1. A
    Rod-shaped
  2. B
    Spherical
  3. C
    Spiral
  4. D
    Irregular
Question 8Single Answer
The Gram stain differentiates bacteria based on:
  1. A
    Cell wall structure
  2. B
    Cell size
  3. C
    Cell shape
  4. D
    Cell motility
Question 9Single Answer
Which microorganism is responsible for causing tuberculosis?
  1. A
    Clostridium botulinum
  2. B
    Streptococcus pneumoniae
  3. C
    Mycobacterium tuberculosis
  4. D
    Vibrio cholerae
Question 10Single Answer
What is the function of a capsule in bacteria?
  1. A
    Energy production
  2. B
    Protection from immune responses
  3. C
    Nutrient storage
  4. D
    Locomotion
Question 11Single Answer
Which of the following is a method to control microbial growth?
  1. A
    Sterilization
  2. B
    Photosynthesis
  3. C
    Fermentation
  4. D
    Respiration
Question 12Single Answer
What is the primary source of energy for bacteria in nutrient cycling?
  1. A
    Sunlight
  2. B
    Organic matter
  3. C
    Inorganic compounds
  4. D
    Both b and c
Question 13Single Answer
Which microorganism is urease-positive and associated with gastric ulcers?
  1. A
    Escherichia coli
  2. B
    Helicobacter pylori
  3. C
    Vibrio cholerae
  4. D
    Shigella dysenteriae
Question 14Single Answer
What is the role of nitrogen-fixing bacteria in the environment?
  1. A
    Decompose organic matter
  2. B
    Convert nitrogen gas to ammonia
  3. C
    Produce oxygen
  4. D
    Cause infections
Question 15Single Answer
Which of the following is a fungal infection?
  1. A
    Malaria
  2. B
    Dengue
  3. C
    Ringworm
  4. D
    Cholera
Question 16Single Answer
What is the primary purpose of autoclaving in microbiology?
  1. A
    To culture bacteria
  2. B
    To sterilize equipment
  3. C
    To stain bacteria
  4. D
    To measure bacterial growth
Question 17Single Answer
Which of the following is a protozoan disease?
  1. A
    Tuberculosis
  2. B
    Malaria
  3. C
    Tetanus
  4. D
    Influenza
Question 18Single Answer
What is the primary habitat of pathogenic bacteria in humans?
  1. A
    Skin and mucous membranes
  2. B
    Bones
  3. C
    Nervous system
  4. D
    Blood only
Question 19Single Answer
Which bacterium causes tetanus?
  1. A
    Clostridium tetani
  2. B
    Bacillus anthracis
  3. C
    Streptococcus pyogenes
  4. D
    Salmonella typhi
Question 20Single Answer
What is the primary mode of transmission for tuberculosis?
  1. A
    Contaminated food
  2. B
    Airborne droplets
  3. C
    Direct contact
  4. D
    Insect bites
Question 21Single Answer
What is the role of antibiotics in bacterial infections?
  1. A
    Kill or inhibit bacterial growth
  2. B
    Kill viruses
  3. C
    Promote bacterial growth
  4. D
    Enhance viral replication
Question 22Single Answer
Which of the following is an example of a spore-forming bacterium?
  1. A
    Escherichia coli
  2. B
    Clostridium botulinum
  3. C
    Streptococcus pneumoniae
  4. D
    Vibrio cholerae
Question 23Single Answer
What is the primary purpose of a culture medium in microbiology?
  1. A
    To sterilize equipment
  2. B
    To grow and study microorganisms
  3. C
    To stain bacteria
  4. D
    To measure pH
Question 24Single Answer
Which microorganism is responsible for causing diphtheria?
  1. A
    Corynebacterium diphtheriae
  2. B
    Mycobacterium tuberculosis
  3. C
    Streptococcus pyogenes
  4. D
    Salmonella typhi
Question 25Single Answer
What is the primary method to prevent the spread of waterborne diseases like cholera?
  1. A
    Vaccination
  2. B
    Water purification
  3. C
    Antibiotics
  4. D
    Insect repellents
Question 26Single Answer
Which of the following is a common disinfectant used in healthcare settings?
  1. A
    Sugar syrup
  2. B
    Sodium hypochlorite
  3. C
    Distilled water
  4. D
    Lemon extract
Question 27Single Answer
What is the primary source of infection for Salmonella typhi?
  1. A
    Contaminated food or water
  2. B
    Airborne droplets
  3. C
    Insect bites
  4. D
    Direct contact
Question 28Single Answer
What is the primary role of pasteurization in food safety?
  1. A
    To enhance flavor
  2. B
    To kill pathogenic microorganisms
  3. C
    To increase shelf life without heat
  4. D
    To add nutrients
Question 29Single Answer
Which of the following is a viral sexually transmitted disease?
  1. A
    Syphilis
  2. B
    Gonorrhea
  3. C
    HIV/AIDS
  4. D
    Chlamydia
Question 30Single Answer
What is the primary purpose of a microscope in microbiology?
  1. A
    To sterilize samples
  2. B
    To observe microorganisms
  3. C
    To culture bacteria
  4. D
    To measure pH
Question 31Single Answer
Which bacterium is associated with food poisoning caused by undercooked poultry?
  1. A
    Salmonella enterica
  2. B
    Clostridium tetani
  3. C
    Bacillus anthracis
  4. D
    Streptococcus pneumoniae
Question 32Single Answer
What is the primary mode of transmission for malaria?
  1. A
    Airborne droplets
  2. B
    Mosquito bites
  3. C
    Contaminated food
  4. D
    Direct contact
Question 33Single Answer
Which of the following is a method to identify bacteria in a laboratory?
  1. A
    PCR (Polymerase Chain Reaction)
  2. B
    Photosynthesis
  3. C
    Fermentation
  4. D
    Respiration
Question 34Single Answer
What is the role of endospores in bacteria?
  1. A
    Energy production
  2. B
    Survival under harsh conditions
  3. C
    Nutrient storage
  4. D
    Locomotion
Question 35Single Answer
Which of the following is a common cause of urinary tract infections?
  1. A
    Escherichia coli
  2. B
    Mycobacterium tuberculosis
  3. C
    Clostridium botulinum
  4. D
    Vibrio cholerae
Question 36Single Answer
What is the primary purpose of hand washing in infection control?
  1. A
    To enhance skin texture
  2. B
    To increase microbial growth
  3. C
    To remove microorganisms from hands
  4. D
    To add moisture to skin
Question 37Single Answer
Which microorganism is responsible for causing leprosy?
  1. A
    Mycobacterium leprae
  2. B
    Streptococcus pyogenes
  3. C
    Clostridium tetani
  4. D
    Salmonella typhi
Question 38Single Answer
What is the primary source of infection for Shigella dysenteriae?
  1. A
    Contaminated food or water
  2. B
    Airborne droplets
  3. C
    Insect bites
  4. D
    Direct contact
Question 39Single Answer
Which of the following is a characteristic of prokaryotic cells?
  1. A
    Presence of a nucleus
  2. B
    Lack of a nucleus
  3. C
    Presence of mitochondria
  4. D
    Presence of chloroplasts
Question 40Single Answer
What is the primary purpose of an antibiotic sensitivity test?
  1. A
    To determine which antibiotic is effective against a bacterium
  2. B
    To culture bacteria
  3. C
    To stain bacteria
  4. D
    To measure bacterial growth rate
Question 41Single Answer
Which of the following is a bacterial sexually transmitted disease?
  1. A
    HIV/AIDS
  2. B
    Gonorrhea
  3. C
    Influenza
  4. D
    Malaria
Question 42Single Answer
What is the primary role of vaccines in public health?
  1. A
    To treat infections
  2. B
    To prevent infections by stimulating immunity
  3. C
    To kill microorganisms
  4. D
    To culture bacteria
Question 43Single Answer
Which microorganism is responsible for causing anthrax?
  1. A
    Bacillus anthracis
  2. B
    Clostridium botulinum
  3. C
    Streptococcus pneumoniae
  4. D
    Vibrio cholerae
Question 44Single Answer
What is the primary method to control the spread of airborne diseases?
  1. A
    Water purification
  2. B
    Wearing masks and improving ventilation
  3. C
    Insect repellents
  4. D
    Antibiotics
Question 45Single Answer
Which of the following is a characteristic of eukaryotic microorganisms?
  1. A
    Lack of a nucleus
  2. B
    Lack of a cell wall
  3. C
    Absence of organelles
  4. D
    Presence of a nucleus
Question 46Single Answer
What is the primary purpose of a biosafety cabinet in a microbiology lab?
  1. A
    To store samples
  2. B
    To provide a sterile working environment
  3. C
    To culture bacteria
  4. D
    To measure pH
Question 47Single Answer
Which bacterium is associated with causing whooping cough?
  1. A
    Bordetella pertussis
  2. B
    Mycobacterium tuberculosis
  3. C
    Clostridium tetani
  4. D
    Salmonella typhi
Question 48Single Answer
What is the primary source of infection for Clostridium botulinum?
  1. A
    Contaminated food
  2. B
    Airborne droplets
  3. C
    Insect bites
  4. D
    Direct contact
Question 49Single Answer
Which of the following is a method to preserve food by killing microorganisms?
  1. A
    Fermentation
  2. B
    Canning
  3. C
    Photosynthesis
  4. D
    Respiration
Question 50Single Answer
What is the primary role of flagella in bacteria?
  1. A
    Energy production
  2. B
    Motility
  3. C
    Nutrient storage
  4. D
    Protection
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