Question: The minimum time required for the sterilization of surgical instruments by moist heat at 134°C is__________________?

• 1. 3 minutes
• 2. 15 minutes
• 3. 30 minutes
• 4. 60 minutes

Question: The best sterilization method for a hand-piece is________________?

• 1. Ethylene oxide gas
• 2. dry heat
• 3. chemical vapour
• 4. All of the above

Question: Example of immune complex hyper-sensitivity reaction is______________?

• 1. Atopic allergy
• 2. Serum sickness
• 3. Transfusion reaction
• 4. Contact dermatitis

Question: The chemotactic factor is______________?

• 1. C2a
• 2. C3b
• 3. C4a
• 4. C5a

Question: Steam under pressure in used in ________ sterilization?

• 1. Pasteurization
• 2. Autoclave
• 3. Kochs sterilizer
• 4. hot air oven

Question: The predominant immunoglobulin in saliva is_______________?

• 1. IgA
• 2. IgD
• 3. IgE
• 4. IgG

Question: Which of the following is not a pox virus ?

• 1. Cowpox
• 2. Molluscum contagiosum
• 3. Small pox
• 4. chicken pox

Question: Serological study for prevalence of Hepatitis B is best done by______________?

• 1. Surface antigen
• 2. Surface antibody
• 3. Core antigen
• 4. Core antibody

Question: ELISA test when compared to western blot technique is______________?

• 1. Less sensitive less specific
• 2. More sensitive, more specific
• 3. Less sensitive, more specific
• 4. More sensitive, less specific

Question: The virus which causes Aplastic anemia in chronic hemolytic disease is_______________?

• 1. Adeno
• 2. Hepatitis
• 3. EB virus
• 4. Parvo virus