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Food Processing Unit Operations Mcqs

Q:

What happens when milk is pasteurized?

A) Reduces the bacterial population B) Destroys spores
C) Impart color D) Impart flavor
 
Answer & Explanation Answer: A) Reduces the bacterial population

Explanation: Pasteurization is not similar to sterilization. Pasteurization reduces the bacterial population of a liquid and destroys the organisms that may cause spoilage and human disease. Spores are not affected by the pasteurization process.

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Q:

What is other name for batch pasteurization?

A) Vat Pasteurization B) HTST pasteurization
C) UHT pasteurization D) Cold pasteurization
 
Answer & Explanation Answer: A) Vat Pasteurization

Explanation: Vat Pasteurization is also known as the holding method or batch pasteurization. Every particle of milk or cream is heated in equipment at 63°C and hold for 30 minutes.

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Q:

What gas is used for gas stunning in meat processing?

A) Argon B) Helium
C) Carbon dioxide D) Ammonia
 
Answer & Explanation Answer: A) Argon

Explanation: Gas stunning is the process where the animals are exposed to a mixture of breathing gases such as nitrogen and argon which produces unconsciousness and death through hypoxia. This process is not instantaneous.

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Q:

Which of the following statements about stunning in meat processing are correct?
Statement 1: It reduces animal’s mobility.
Statement 2: Percussive stunning produces immediate unconsciousness through brain trauma.

A) True, False B) True, True
C) False, True D) False, False
 
Answer & Explanation Answer: B) True, True

Explanation: Stunning is the method of rendering animals unconscious or immobile, immediately prior to slaughtering. With percussive stunning, a device hits the animal on the head and produces immediate unconsciousness through brain trauma.

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32
Q:

What is the gizzard table operator in meat processing?

A) Removes the viscera from the body cavity B) Separates the heart, liver, and gizzard from the rest of the viscera
C) Trim and clean gizzards D) Cut the neck of the bird
 
Answer & Explanation Answer: C) Trim and clean gizzards

Explanation: The gizzard table operators manually trim and clean the gizzards. They are then placed in an automatic splitting machine where they are opened up and washed in the gizzard peeler station.

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Q:

What is arranger in meat processing?

A) Removes the viscera from the body cavity B) Separates the heart, liver, and gizzard from the rest of the viscera
C) Trim and clean gizzards D) Cut the neck of the bird
 
Answer & Explanation Answer: A) Removes the viscera from the body cavity

Explanation: Arranger removes the intestines from the body cavity and are arranged them for inspection. The initial removal is often skilled by the automatic vent opening mechanism. The arranger is also called as presenter.

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Q:

What is giblet harvester?

A) Removes the viscera from the body cavity B) Separates the heart, liver, and gizzard from the rest of the viscera
C) Trim and clean gizzards D) Cut the neck of the bird
 
Answer & Explanation Answer: B) Separates the heart, liver, and gizzard from the rest of the viscera

Explanation: The liver, gizzard, and heart are separated by giblet harvester from the rest of the intestines by a saw. Then these organs are conveyed to a wash table where a prime cleaning is done.

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46
Q:

What is evisceration?

A) Removing internal body parts of bird B) Removing feathers
C) Cleaning the skin of bird D) Preservation technique of bird
 
Answer & Explanation Answer: A) Removing internal body parts of bird

Explanation: Evisceration is defined as removal of the internal organs of birds. After evisceration, the birds are placed in chiller baths of water and anti-microbial agents are added to reduce pathogen loading.

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