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Latest UKMSSB Lab Technician Exam Question (Objective Questions), MCQ in English

Subjects : Lab Technician

Question Bank UKMSSB Lab Technician Exam - English
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Lab Technician

Question 1Single Answer
Which scientist identified *Mycobacterium tuberculosis* as the causative agent of tuberculosis? 
  1. A
    Louis Pasteur
  2. B
    Robert Koch
  3. C
    Joseph Lister
  4. D
    Edward Jenner
Question 2Single Answer
Father of antiseptic surgery is
  1. A
    Louis Pasteur
  2. B
    Robert Koch
  3. C
    Antonie Van Leeuwenhoek
  4. D
    Lister
Question 3Single Answer
Which process developed by Louis Pasteur uses controlled heating to reduce harmful microorganisms in beverages?
  1. A
    Autoclaving
  2. B
    Pasteurization
  3. C
    Tyndallization
  4. D
    Incineration
Question 4Single Answer
Mycobacterium leprae is also known as .............
  1. A
    Golden bacilli
  2. B
    Koch's bacillus
  3. C
    Magical bacilli
  4. D
    Hansen's bacilli
Question 5Single Answer
Which combination represents the WHO-recommended multidrug therapy for leprosy?
  1. A
    Rifampicin, dapsone and clofazimine
  2. B
    Rifampicin, isoniazid and ethambutol
  3. C
    Dapsone, acyclovir and rifampicin
  4. D
    Clofazimine, zidovudine and isoniazid
Question 6Single Answer
Mycobacterium tuberculosis is also known as
  1. A
    Golden bacilli
  2. B
    Koch's bacillus
  3. C
    Magical bacilli
  4. D
    Hansen's bacilli
Question 7Single Answer
Who developed the first practical electron microscope?
  1. A
    Robert Koch and Louis Pasteur
  2. B
    Ernst Ruska and Max Knoll
  3. C
    Edward Jenner and Joseph Lister
  4. D
    Watson and Crick
Question 8Single Answer
Which of the following organisms is NOT acid-fast?
  1. A
    Mycobacterium tuberculosis
  2. B
    Nocardia species
  3. C
    Cystoisospora belli oocysts
  4. D
    Staphylococcus aureus
Question 9Single Answer
In bacteria, the electron transport chain responsible for aerobic respiration is primarily located in which structure?
  1. A
    Cytoplasmic membrane
  2. B
    Ribosome
  3. C
    Capsule
  4. D
    Nucleoid
Question 10Single Answer
Which bacterial structure can help prevent phagocytosis by host immune cells?
  1. A
    Capsule
  2. B
    Ribosome
  3. C
    Nucleoid
  4. D
    Endospore
Question 11Single Answer
What term describes spherical bacteria arranged in chains?
  1. A
    Staphylococci
  2. B
    Streptococci
  3. C
    Diplobacilli
  4. D
    Vibrios
Question 12Single Answer
Coma shaped bacteria are known as
  1. A
    Staphylococci
  2. B
    Streptococci
  3. C
    Vibrio
  4. D
    Bacillus
Question 13Single Answer
Which of the following is most resistant to sterilization ?
  1. A
    Tubercle bacilli
  2. B
    Viruses
  3. C
    Spores
  4. D
    Prions
Question 14Single Answer
Which method is commonly used for high-level disinfection of heat-sensitive flexible endoscopes?
  1. A
    Glutaraldehyde-based high-level disinfection
  2. B
    Dry heat at 160°C
  3. C
    Flaming
  4. D
    Routine steam autoclaving
Question 15Single Answer
Which of the following is a classical transport medium used for stool specimens suspected of containing *Vibrio cholerae*?
  1. A
    Venkatraman-Ramakrishnan medium
  2. B
    Blood agar
  3. C
    Nutrient agar
  4. D
    Selenite F broth
Question 16Single Answer
Which of the following is an enriched culture medium?
  1. A
    Peptone water
  2. B
    Selenite F broth
  3. C
    Chocolate agar
  4. D
    MacConkey agar
Question 17Single Answer
Which of the following factor does not affect microbial growth ?
  1. A
    Moisture
  2. B
    Disinfection
  3. C
    Darkness
  4. D
    Temperature
Question 18Single Answer
Agar concentration required to prepare nutrient agar is :
  1. A
    1 - 2%
  2. B
    4 - 6%
  3. C
    0.25 - 0.5%
  4. D
    0.5 - 1%
Question 19Single Answer
HIV is a
  1. A
    Retro virus
  2. B
    DNA virus
  3. C
    Fungus
  4. D
    Bacteria
Question 20Single Answer
MRSA is mediated due to
  1. A
    Plasmid
  2. B
    Chromosome
  3. C
    Transposons
  4. D
    None of these
Question 21Single Answer
All of the following are vector bone diseases except
  1. A
    Malaria
  2. B
    Filariasis
  3. C
    Rubella
  4. D
    Chagas disease
Question 22Single Answer
Primary immune response the correct statement is :
  1. A
    Involves IgG
  2. B
    Antibody producing cells . Memory B cell
  3. C
    No lag period
  4. D
    Slow and sluggish
Question 23Single Answer
Which transfusion-transmissible infection is routinely screened for in donated blood?
  1. A
    HIV infection
  2. B
    Common cold
  3. C
    Tetanus
  4. D
    Diphtheria
Question 24Single Answer
Which one of the following is post streptococcal sequelae :
  1. A
    Acute rheumatic fever
  2. B
    Cellulitis
  3. C
    Pharyngitis
  4. D
    Impetigo
Question 25Single Answer
In a person with no known TB risk factors, what tuberculin skin test induration is considered positive according to CDC interpretation?
  1. A
    ≥2 mm
  2. B
    ≥5 mm
  3. C
    ≥10 mm
  4. D
    ≥15 mm
Question 26Single Answer
Which laboratory method provides definitive confirmation of typhoid fever when *Salmonella Typhi* is isolated from blood?
  1. A
    Blood culture
  2. B
    Schick test
  3. C
    Dick test
  4. D
    Mantoux test
Question 27Single Answer
Which test was historically used to determine susceptibility to diphtheria toxin?
  1. A
    Mantoux test
  2. B
    Schick test
  3. C
    Dick test
  4. D
    Weil-Felix test
Question 28Single Answer
Diagnostic test used for TB is .
  1. A
    Mantoux Test
  2. B
    Dick Test
  3. C
    Hick Test
  4. D
    Widal Test
Question 29Single Answer
Diagnostic test used for scarlet fever is .
  1. A
    Mantoux Test
  2. B
    Dick Test
  3. C
    Shick Test
  4. D
    Widal Test
Question 30Single Answer
Diagnostic test used for typhus fever is .
  1. A
    Mantoux Test
  2. B
    Dick Test
  3. C
    Shick Test
  4. D
    Weil Felix
Question 31Single Answer
Route of injecting shick test toxin / purified protein derivative (mauntox test) is .....
  1. A
    Intra vascular
  2. B
    Intra dermal
  3. C
    Intra muscular
  4. D
    Subcutaneous
Question 32Single Answer
At which site is purified protein derivative typically administered for a Mantoux tuberculin skin test?
  1. A
    Volar surface of the forearm
  2. B
    Gluteal region
  3. C
    Deltoid muscle
  4. D
    Anterior thigh muscle
Question 33Single Answer
Most accurate method of diagnosis of Helicobacter pylori is :
  1. A
    Culture
  2. B
    Biopsy urease test
  3. C
    Histopathology
  4. D
    Urea breath test
Question 34Single Answer
All of the following viruses are transmitted by respiratory route except :
  1. A
    Influenza virus
  2. B
    Rota virus
  3. C
    Respiratory syncytial virus
  4. D
    Rhino virus
Question 35Single Answer
Acid fast staining is used to detect
  1. A
    Mycobacterium TB
  2. B
    Ctetani
  3. C
    HIV / AIDS
  4. D
    Meningococci
Question 36Single Answer
During the window period of patient with AIDS, best diagnostic test is :
  1. A
    ELISA
  2. B
    Western Blot
  3. C
    Rapid Test
  4. D
    RT - PCR
Question 37Single Answer
Which laboratory measurement directly quantifies the amount of HIV circulating in the blood?
  1. A
    CD4 cell count
  2. B
    HIV RNA viral load
  3. C
    CD8 cell count
  4. D
    HIV antibody titre
Question 38Single Answer
Which route carries a particularly high risk of HIV transmission when infected blood is directly transfused to a recipient?
  1. A
    Blood transfusion
  2. B
    Casual skin contact
  3. C
    Sharing food
  4. D
    Mosquito bite
Question 39Single Answer
Most common malignancy in AIDS is :
  1. A
    Kaposi sarcoma
  2. B
    Cell lymphoma
  3. C
    Leukemia
  4. D
    Burkitt's lymphoma
Question 40Single Answer
Which organism is classically associated with food poisoning following ingestion of food containing large numbers of vegetative cells that subsequently produce enterotoxin?
  1. A
    Clostridium perfringens
  2. B
    Corynebacterium diphtheriae
  3. C
    Clostridium tetani
  4. D
    Mycobacterium tuberculosis
Question 41Single Answer
Which chemical has traditionally been used for high-level disinfection of heat-sensitive endoscopes and bronchoscopes?
  1. A
    Glutaraldehyde
  2. B
    Methanol
  3. C
    Sodium chloride
  4. D
    Distilled water
Question 42Single Answer
Method of sterilization used for culture media is .
  1. A
    Autoclave
  2. B
    Hot air oven
  3. C
    Pasteurization
  4. D
    None of the above
Question 43Single Answer
Which of the following is “LIVE ATTENUATED VACCINE” ?
  1. A
    BCG vaccine
  2. B
    Rabies vaccine
  3. C
    Diphtheria toxoid
  4. D
    Tetanus toxoid
Question 44Single Answer
Which type of vaccine contains a weakened form of a living microorganism capable of limited replication in the recipient?
  1. A
    Live attenuated vaccine
  2. B
    Inactivated vaccine
  3. C
    Toxoid vaccine
  4. D
    Subunit vaccine
Question 45Single Answer
The method of killing of all microorganisms including their spores is known as ....
  1. A
    Sterilization
  2. B
    Disinfection
  3. C
    Incineration
  4. D
    Lysis
Question 46Single Answer
The method of reducing the number of pathogens from anyarticle, surface or medium is called as ....
  1. A
    Sterilization
  2. B
    Disinfection
  3. C
    Incineration
  4. D
    Lysis
Question 47Single Answer
The causative agent of Tuberculosis (T.B.) is
  1. A
    Mycobacterium tuberculosis
  2. B
    Mycobacterium leprae
  3. C
    Treponema pallidum
  4. D
    Borrelia species
Question 48Single Answer
The causative agent of Syphilis is
  1. A
    Mycobacterium tuberculosis
  2. B
    Mycobacterium leprae
  3. C
    Treponema pallidum
  4. D
    Borrelia species
Question 49Single Answer
VDRL test is used for the diagnosis of
  1. A
    Syphilis
  2. B
    Tuberculosis
  3. C
    Hot air oven
  4. D
    Both (a) & (b)
Question 50Single Answer
Which of the following is a standard method of sterilization using moist heat under pressure?
  1. A
    Autoclaving
  2. B
    Hot-air oven
  3. C
    Incineration
  4. D
    Filtration
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