Engineering Questions with Answers - Multiple Choice Questions
Food Engineering MCQ’s – Principles of Fresh Food Storage-1
1 - Question
Statement 1: Time is an important parameter for the growth of spoilage organisms.
Statement 2: Temperature is an important parameter for the growth of spoilage organisms.
a) True, False
b) True, True
c) False, False
d) False, True
View Answer
Explanation: Both, time and temperature are important parameters for the growth of spoilage organisms.
2 - Question
The length of storage of fruits and vegetables is a function of _____
a) Resistance to attack by microorganisms
b) Composition
c) Gases in the environment
d) All of the mentioned
View Answer
Explanation: All of the mentioned are factors which affect the length of storage of fruits and vegetables.
3 - Question
Statement 1: A harvested fruit contains many oxidative substrates required to perform respiration.
Statement 2: Different species of fruits have different patterns of respiration. This is called as _____
a) True, climacteric
b) True, botulism
c) False, climacteric
d) False, botulism
View Answer
Explanation: A harvested fruit contains many oxidative substrates required to perform respiration. Different species of fruits have different patterns of respiration. This is called as climacteric.
4 - Question
In the climacteric, the ratio of the highest peak to the minimum _____ with temperature.
a) Increases
b) Decreases
c) Stays constant
d) Exponentially varies
View Answer
Explanation: In the climacteric, the ratio of the highest peak to the minimum increases with temperature.
5 - Question
Statement 1: In the climacteric, the ratio of the highest peak to the minimum varies with temperature.
Statement 2: In the climacteric, the ratio of the highest peak to the minimum varies from fruit to fruit.
a) True, False
b) True, True
c) False, False
d) False, True
View Answer
Explanation: In the climacteric, the ratio of the highest peak to the minimum varies with temperature and varies from fruit to fruit.
6 - Question
Statement 1: After harvest, there is a decline in the uptake of oxygen.
Statement 2: After harvest, there is a sharp rise in the uptake of oxygen.
a) True, False
b) True, True
c) False, False
d) False, True
View Answer
Explanation: After harvest, there is a decline in the uptake of oxygen. This is followed by a sharp rise to a peak.
7 - Question
The slope of the climacteric varies with _____
a) Maturity
b) Species
c) Oxygen and carbon-di-oxide content of the storage chamber
d) All of the mentioned
View Answer
Explanation: The slope of the climacteric varies with maturity, species and oxygen and carbon-di-oxide content of the storage chamber.
8 - Question
Statement 1: Ripening of fruits is accompanied with a lot of anabolic and catabolic reactions.
Statement 2: Certain fleshy roots, tubers and bulbs have low metabolic activity and are dormant until there are environmentally favorable conditions for germination and growth.
a) True, False
b) True, True
c) False, False
d) False, True
View Answer
Explanation: Ripening of fruits is accompanied with a lot of anabolic and catabolic reactions. Certain fleshy roots, tubers and bulbs have low metabolic activity and are dormant until there are environmentally favorable conditions for germination and growth.
9 - Question
Fleshy fruits after _____ are _____
a) Ripening, consumed
b) Ripening, rotted
c) Consuming, rotted
d) None of the mentioned
View Answer
Explanation: Fleshy fruits after ripening are consumed.
10 - Question
Statement 1: At low temperatures, the rate of respiration of harvested fruits and vegetables decreases.
Statement 2: Under conditions where respiration rate is retarded, changes in chlorophyll loss are also delayed.
a) True, False
b) True, True
c) False, False
d) False, True
View Answer
Explanation: At low temperatures, the rate of respiration of harvested fruits and vegetables decreases. Under conditions where respiration rate is retarded, changes in chlorophyll loss are also delayed.
11 - Question
Which is NOT a facet of cellular loci and messaging?
a) The biochemical control
b) Mechanics of quality change
c) The temperature and atmosphere
d) None of the mentioned
View Answer
Explanation: All of the mentioned are facets of cellular loci and messaging.
12 - Question
Statement 1: In cellular loci and messaging, the link is the mechanics of quality change.
Statement 2: In cellular loci and messaging, the machinery is the biochemical control.
a) True, False
b) True, True
c) False, False
d) False, True
View Answer
Explanation: In cellular loci and messaging, the machinery is the mechanics of quality change. In cellular loci and messaging, the link is the biochemical control.
13 - Question
In the biochemistry of plants, which of the statements hold wrong?
a) Ethylene plays an important role in promoting food ripening
b) Changes in membrane permeability cause metabolic shifts associated with ripening
c) Senescence aren’t always the reason for the collapse of cellular machinery
d) None of the mentioned
View Answer
Explanation: None of the mentioned statements with respect to the biochemistry of plants hold wrong.
14 - Question
Keeping in mind that texture changes take place after harvest, pulpy fruits become extremely hard after harvest.
a) True
b) False
View Answer
Explanation: Keeping in mind that texture changes take place after harvest, pulpy fruits become extremely soft after harvest. Whereas, vegetables such as beans harden on harvesting.
15 - Question
Statement 1: After harvest, _____ of fruits and vegetables undergoes change.
Statement 2: The _____ in pre-harvest and application of _____ to post-harvest can change the stress response in harvested commodities.
a) Texture, nutrients, minerals
b) Color, minerals, nutrients
c) Texture, minerals, nutrients
d) None of the mentioned
View Answer
Explanation: After harvest, both, the texture and color of fruits and vegetables undergoes change. But the correct order of the second statement is- The nutrients, in pre-harvest and application of minerals to post-harvest can change the stress response in harvested commodities.