Questions and answers for exam Preparation

MCQs

Total Questions : 64 | Page 2 of 7 pages

Question 11. Which of the following is a naturally occurring antioxidant?

Hydroquinone
Ascorbic acid
Vitamin E
All of the mentioned

Discuss Question

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

Question 12. Statement 1: None of the naturally occurring antioxidant phenols are permitted as food additives.
Statement 2: Benzoic acid has certain antioxidant properties.

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

Discuss Question

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

Question 13. Which of the following is valid when it comes to the future of antibiotics in food?

Should have no harmful effect on man when taken by mouth and preferably should be metabolizable
The economy of use, ease of use and reliability of control and detection must exist
Preferably compatible with other methods of permanent preservation
All of the mentioned

Discuss Question

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

Question 14. Which of the following is true about mold inhibition?

Sorbic acid is used as a mold inhibitor in cheese
The quantity of Sorbic acid required for mold inhibition is one third the amount of sodium benzoate required
Propylene glycol and tri ethylene glycol have germicidal properties
All of the mentioned

Discuss Question

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

Question 15. Which of the following fact about radiation/ irradiation is true?

All food items consumed by man are radioactive
Alpha and beta particles and gamma photons are the radiations available for food preservation applications
Energy lost per ion pair formed is greater than the ionization energy
All of the mentioned

Discuss Question

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

Question 16. Statement 1: _____ radiation is also called cathode radiation.
Statement 2: In _____ radiation, spent fuel elements are used.

Alpha, beta
Gamma, alpha
Beta, gamma
All of the mentioned

Discuss Question

Answer: Option C. -> Beta, gamma
Answer: (c).Beta, gamma

Question 17. Which of the following is correct about beta particles?

High specific ionization ability
Low penetrating power
Higher ionization ability than gamma radiation
All of the mentioned

Discuss Question

Answer: Option C. -> Higher ionization ability than gamma radiation
Answer: (c).Higher ionization ability than gamma radiation

Question 18. In which of the following ways does absorption of gamma radiation take place?

Photoelectric effect
Compton effect
Pair production
All of the mentioned

Discuss Question

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

Question 19. Which of the following is correct about alpha particles?

High ionization due to relative size and carrying of double positive charge
Low penetration power
In air, they have a range of few centimeters
All of the mentioned

Discuss Question

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

Question 20. Which of the following reasons is why machine produced ionizing radiations are preferred over fission products?

Fission products require extensive shielding and dose supplied may be so high that prolonged exposure times are required
Machine produced radiations are unidirectional and can be turned off
None of the mentioned
Neither of the mentioned

Discuss Question

Answer: Option B. -> Machine produced radiations are unidirectional and can be turned off
Answer: (b).Machine produced radiations are unidirectional and can be turned off