Explore topic-wise MCQs in Food Engineering.

This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Food Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Statement 1: Under water storage is more effective than that in the air.
Statement 2: Adsorption of CO2 on the surface of grains is a reversible process.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
2.

Three level packaging is done for rice. Which bag is for quality control?

A. Inner most bag 1
B. Middle bag 2
C. Outermost bag 3
D. All of the mentioned
Answer» C. Outermost bag 3
Discussion
3.

Meats stored in _____ environment have a better color than _____

A. CO<sub>2</sub>, O<sub>2</sub>
B. O<sub>2</sub>, CO<sub>2</sub>
C. CO<sub>2</sub>, N<sub>2</sub>
D. N<sub>2</sub>, O<sub>2</sub>
Answer» C. CO<sub>2</sub>, N<sub>2</sub>
Discussion
4.

Statement 1: Influence of bacteria has more effect on the storage of food than the pH control.
Statement 2: Meat color is due to the presence of _____

A. True, myoglobin
B. True, haemoglobin
C. False, myoglobin
D. False, haemoglobin
Answer» B. True, haemoglobin
Discussion
5.

Statement 1: A gas atmosphere containing 20% CO2 is effective in inhibiting slime-producing bacteria.
Statement 2: Meat can be preserved by protecting it from oxygen as the majority of bacteria grow in that atmosphere.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
6.

Which of the following is true with respect to volatile by controlling oxygen content in storage?

A. Lowing in endogenous concentration increases rate of volatile formation
B. Anaerobiosis favors its production if it is a highly reduced compound
C. Limiting the amount of energy available
D. All of the mentioned
Answer» E.
Discussion
7.

Statement 1: Under hypobaric storage, oxygen content is reduced to reduce the rate of synthesis of volatile.
Statement 2: Altering respiration can help in decreasing the production of carbon dioxide.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
8.

Statement 1: Under hypobaric storage, the gas always attains equilibrium with its surroundings.
Statement 2: Hypobaric storage is a continuous process.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
9.

Under hypobaric storage, when gas is in equilibrium with its surroundings, the diffusivity _____ and concentration gradient _____

A. Increase by ten folds, decreases to one-tenth
B. Decreases to one-tenth, increase by ten folds
C. Stays constant, stays constant
D. None of the mentioned
Answer» B. Decreases to one-tenth, increase by ten folds
Discussion
10.

Statement 1: Sub atmospheric storage involves ventilating the produce with air saturated with water vapor by continuously evacuating the container with a sealed vacuum pump.
Statement 2: Under hypobaric storage, a gas in equilibrium with its surroundings will have its outward diffusion rate proportional to concentration gradient and diffusivity.

A. True, False
B. True, True
C. False, False
D. False, True
Answer» C. False, False
Discussion
11.

Which of the following variables affect gas exchanges into and out of the package?

A. Weight of apples
B. Ethylene concentration
C. Structure of the packaging film
D. All of the mentioned
Answer» D. All of the mentioned
Discussion
12.

Which of the following is NOT delivered by the modified atmosphere (MA) or controlled atmosphere (CA)?

A. Delay ripening of fruits
B. Retard spread of diseases
C. Toughing
D. Incidence of storage disorders
Answer» D. Incidence of storage disorders
Discussion