Which of the following disinfectants acts by disrupting microbial membranes?
1. Aldehydes
2. Sterilizing gases 3. Heavy metals 4. Cationic detergents

Tyndallization is a type of
1. Pasteurization
2. Boiling 3. Intermittent sterilization 4. Dry heat

Which of the following methods is useful for sterilization of antisera?
1. Autoclaving
2. Tyndallisation 3. Hot air oven 4. Filtration

Which of the following scientist introduced the "Sterilization" technique?
1. Louis Pasteur
2. Joseph Lister 3. John Needham 4. Robert Koch

Which of the following method is best to sterilize heat labile solutions?
1. Autoclave
2. Hot Air Oven 3. Membrane filtration 4. Pasteurization

The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the
1. thermal death time
2. thermal death temperature 3. thermal death point 4. decimal reduction time

All of the following are sporicidal except
1. glutaraldehyde
2. alcohol 3. formaldehyde 4. stabilized hydrogen peroxide

Identify the term that is used to ensure surgical instruments are free from micro- organisms:
1. Debrided
2. Disinfected 3. Sterilization 4. Cleaned

Which of the following methods of infection control requires the use of an autoclave?
1. irradiation
2. sanitization 3. disinfection 4. sterilization

Sharp instruments should not be sterilized by:
1. Autoclaving
2. Hot air ovens 3. Boiling 4. Chemical disinfectants

Browne's tube is used as indicator for efficacy of:
1. Ultraviolet rays
2. Filtration 3. Heat sterilization 4. Chemical sterilization

Which is a form of cold sterilization
1. Infrared rays
2. Gamma rays 3. UV rays 4. Steam sterilization

Any process that destroys the non-spore- forming contaminants on inanimate objects is:
1. antisepsis
2. Disinfection 3. Degermation 4. sterilization

Sporozoites of the malarial parasites are found in

Recurring chills and fever in malaria is due to

The motile zygote of Plasmodium is found in
1. human liver
2. human RBCs 3. salivary glands of female Anopheles 4. the gut of female Anopheles

A 19 years old boy from Delhi,India suddenly developed a high fever with a headache,stomach ache,other symptoms included vomiting and diarrhea.When examined, dengue fever was suspected,which of the following statement is not correct about the dengue virus

Which of the following statement is true regarding the West Nile virus ?

1. Transmitted by the bite of ticks 2. Early symptoms are cold and cough 3. It is a Flavivirus 4. The virus spreads from person to person

Ascaris infection is transmitted by
1. mosquito bite
2. Tse-tse fly 3. consuming uncooked pork 4. drinking contaminated water with eggs of Ascaris