Questions and answers for exam Preparation

MCQs

Total Questions : 64 | Page 3 of 7 pages

Question 21. Which of the following dosimeters are used?

Primary standard
Operating standard
Production control devices
All of the mentioned

Discuss Question

Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned

Question 22. Statement 1: _____ induce radioactivity in food items.
Statement 2: Variations in dose distributions in many types of containers and with all types of sources range between 100-125%.

Protons, False
Electrons, False
Neutrons, True
Any of the mentioned, True

Discuss Question

Answer: Option C. -> Neutrons, True
Answer: (c).Neutrons, True

Question 23. Which of the following is true about ferrous sulphate dosimeter?

It is the most standard dosimeters. Radiation ionizes water forming H20⁺. This dissociates into OH⁻ and H⁺ ion
The formation of Fe+++ is the key effect which permits the determination of the radiation dose
Determination of ferric ion concentration gives a direct measure of energy absorbed
All of the mentioned

Discuss Question

Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned

Question 24. Which of the following is a production control dosimeter?

Cobalt glass
Colored plastic tapes
Ferrous dosimeters
All of the mentioned

Discuss Question

Answer: Option B. -> Colored plastic tapes
Answer: (b).Colored plastic tapes

Question 25. Container shape plays an important role for radiation source utilization.

True
False
May be
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 26. Which of the following is important in estimating decimal reduction dose (D value)?

Observations made in the food itself
Desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significance
Observations made in the food itself and desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significance
Neither of the mentioned

Discuss Question

Answer: Option C. -> Observations made in the food itself and desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significance
Answer: (c).Observations made in the food itself and desirable to experiment with the largest feasible initial number of cells and to follow their destruction to the lowest level which can be observed within the limits of statistical significance

Question 27. Statement 1: Plastic films and other foils might get damaged due to irradiation.
Statement 2: By increasing the radiation dose by a two-fold, the resistance of certain organisms to irradiation increases.

True, False
True, True
False, False
False, True

Discuss Question

Answer: Option B. -> True, True
Answer: (b).True, True

Question 28. With respect to which of the following properties of food does food irradiation prove a disadvantage?

Flavor
Tenderness
Microbial growth
All of the mentioned

Discuss Question

Answer: Option A. -> Flavor
Answer: (a).Flavor

Question 29. Statement 1: Very young chickens can also be irradiated. This is an advantage of irradiation.
Statement 2: Which of the following is an example of ionizing radiation as a unit operation in the field of food and agriculture?

False, Synthesis of vitamin C
False, Aging of wines
False, Increasing the yield of crops
All of the mentioned

Discuss Question

Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned

Question 30. Which of the following defines a food additive?

Substance which is/ may become a part of food
A substance or a mixture of substances which is present in food as a result of any aspect of production, processing, storage or packaging
A substance, the intended use of which results or may reasonably be expected to result in its becoming a component or otherwise affecting the characteristics of any food with certain exceptions
All of the mentioned

Discuss Question

Answer: Option D. -> All of the mentioned
Answer: (d).All of the mentioned