1. Toxoids are antigenic and toxic non-antigenic and toxic non-antigenic and non-toxic antigenic and non-toxic 2. In all of the following bacterial diarrhoeas toxins are implicated as a major pathogenic mechanism except Vibrio parahemolyticus Shigella Staphylococcus aureus Vibrio cholera 3. Filters used in biological safety cabinets: High efficiency particulate (HEPA) filter Berkfield filter Millipore filter Seitz filter 4. Blood spills in hospital are disinfected with Absolute alcohol Cetavlon Quarternary ammonium compounds Sodium hypochlorite 5. A bacterial disease that has been associated with the 3 “Rs” i.e., rats, ricefields, and rainfall is Rodent-bite fever. Melioidosis. Leptospirosis. Plague. 6. Pseudomonas, true is all except It grows in antiseptic solution Most common organism in burnt patient It is a strict aerobe It can cause endogenous infection 7. Which of the following is not used as disinfectant for skin preparation due to its irritation potential: Alcohol Hexidine Hexachloropropane Hypochlorite 8. The following hepatitis virus is transmitted by faeco-oral route: except Hepatitis B Virus Hepatitis C Virus Hepatitis E Virus Hepatitis D Virus 9. All of the following are true regarding chlamydia trachomatis except: Inside the cell it evades phagolysosome Reticulate body divides by binary fission It has a bipha’sic life Elementary body is metabolically active 10. Actinomycosis is caused by: cid fast. Non-motile bacillus Anaerobic, gram positive, non-acid fast bacteria. Fungus Retrovirus 11. Mycotic abscesles are due to: Viral infection. Mixed infection Bacterial Infection Fungal infection. 12. Which of the following is true about streptococcus pneumoniae: Gram +ve coccobacilli Gram -ve diplococcic Gram +ve Lanceolate diplococci Extracellular grain -ve diplococcic 13. Characteristic feature of retiovirus is: DNA polymerase Restriction endonuclease Reverse transcriptase Ribonuclease 14. All are true about Leptospirosis except: Urine and faeces are main mode of transmission IgM is formed in 5 days Penicillin G is drug of choice Latent period is 10 days 15. Actinomycetes is A yeast like form ram positive bacteria Fungus Gram negative bacteria 16. Graft versus host reaction is caused by Monocytes Leukocytes T-lymphocytes B-lymphocytes 17. In the management of leprosy, Lepromin test is most useful for Diagnosis Prognosis Treatment Epidemiological investigations 18. Blood agar is Transport media Enriched media Differential media Simple media 19. First organism to appear in oral cavity: Lactobacilli Strept. Salivarious Streptococcus sanguis Strept. Mutans 20. Influenza is caused by Orthomyxo virus, which is a DNA virus Orthomyxo virus, which is a RNA virus Paramyxo virus, which is a RNA virus Paramyxo virus, which is a DNA virus Loading … Question 1 of 20
