PHYSICAL AND CHEMICAL AGENTS QUIZ

The process of making an object free from living organisms including bacterial and fungal spores and viruses is known as

sterilization

pasteurization

antisepsis

disinfection

TRUE ANSWER : ?
YOUR ANSWER : ?

Preservation of foods by using salts and sugars works by

raising pH

creating a hypotonic environment

creating a hypertonic environment

lowering osmotic pressure

TRUE ANSWER : ?
YOUR ANSWER : ?

Which disinfectant was the most effective against Salmonella"?

Phenol

Merthiolate

Hexachlorophene

Cetylpyridinium chloride

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following items could be sterilized by dry heat sterilization?

Intravenous (IV) solution

Plastic IV bags

Glass pipettes

rubber gloves

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is/are vapour-phase disinfectant/s?

Both (a) and (b)

Ethylene oxide

None of these

Formaldehyde

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

Swab sticks

All-glass syringes

Oils and jellies

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is best to sterilize heat labile solutions?

Pasteurization

Membrane filtration

Dry heat

Autoclave

TRUE ANSWER : ?
YOUR ANSWER : ?

The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the

thermal death point

decimal reduction time

thermal death temperature

thermal death time

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following tests is designed to simulate the natural conditions under which the disinfectants are used in hospitals?

Minimum inhibitory concentration test

Phenol coefficient test

Capacity test

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following articles can be sterilized in an autoclave?

All of these

Dressing material

Culture media

Gloves

TRUE ANSWER : ?
YOUR ANSWER : ?

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