1. Phenol Coefficient test for testing the efficacy of disinfectants in the presence of organic matter isIn-use testRideal Walker testKelsey Sykes testChick- Martin testQuestion 1 of 20 2. Blood spills in hospital are disinfected withSodium hypochloriteQuarternary ammonium compoundsCetavlonAbsolute alcoholQuestion 2 of 20 3. Which of the following viral diseases has the LONGEST incubation period?Herpetic gingivostomatitisInfluenzaRabiesCommon coldQuestion 3 of 20 4. Which of the following organism contain both DNA and RNA?BacteriaPrionPlasmidViriodsQuestion 4 of 20 5. Tuberculin test screens forCell mediated immunityComplement functionPhagocyte dysfunctionHumoral immunityQuestion 5 of 20 6. The earliest identifiable cells of T-Cell Lineage during maturation areCD8+ Pre-T-CellsCD4+ Pre-T-CellsCD8+ Pro-T-CollsCD7 + Pro-T-CellsQuestion 6 of 20 7. Some bacteria get encapsulated toTo produce sporesTo multiplyTo increase penetration capacityAchieve protection from phagocytosisQuestion 7 of 20 8. All of the following statements about carbohydrate antigens are true, exceptPoor immunogenicityPolyclonal responseGood memory responseT cell independent immunityQuestion 8 of 20 9. Which of the following statements about Pneumococcus is false:Capsule aids in virulenceCommonest cause of Otitis mediaCauses mild forms of meningitisRespiratory tract of carriers is most important source of infectionQuestion 9 of 20 10. Anaerobic bacteria lacking catalase are generallysensitive to H202.able to ferment lactate.motile.resistant to penicillin.Question 10 of 20 11. The exact part of the antigen that reacts with the immune system is called asCloneEpitopeParatopeIdiotopeQuestion 11 of 20 12. The following immunoglobulin is not known to fix complementIgAIgGIgEIgMQuestion 12 of 20 13. In the management of leprosy, Lepromin test is most useful forTreatmentPrognosisDiagnosisEpidemiological investigationsQuestion 13 of 20 14. What will happen if a bacteria acquires genes coding for restriction endonuclease -Bacteria will die as lacks methylaseEnhances proof reading activity of that bacteriaIt will damage the host cellIt will have capacity to divide & multiple many timesQuestion 14 of 20 15. Which of the following is MOST resistant to sterilizing conditions?Hepatitis B virusBacterial endosporeOral yeastMycobacterium tuberculosisQuestion 15 of 20 16. Which of the following is true about staining?Calcoflour white stains acanthamoeba blackHematoxylin and eosin stain DNA red or pinkGomarri's methenamine silver stains fungi greenGram negative bacteria stain redQuestion 16 of 20 17. The first virological marker following acute hepatitis B infection isAnti Hbs AgAnti Hbe AgHbsAgIgM Anti Hbc AgQuestion 17 of 20 18. Which of the following is an acid-fast bacillusMycobacterium bacilliNeisseria gonorrhoeaTreponema pallidumALL of the aboveQuestion 18 of 20 19. Which of the following statement is true about bacteriophageIt imparts toxigenicity to bacteriaIt is a bacteriumIt transfers only chromosomal geneIt helps in transformationQuestion 19 of 20 20. All are true regarding Donavanosis except:Causes painful ulcerative genital lesionsEndemic in tropical areasThe causative organism is Calymmatobacter granulomatisSyphilis can occur concomitant with itQuestion 20 of 20 Loading...