Questions and answers for exam Preparation

MCQs

Total Questions : 212 | Page 21 of 22 pages

Question 201. Plate count of bacteria in foods generally use the plating medium consisting of

peptone, glucose, sodium chloride, agar and distilled water
peptone, yeast extract, glucose, sodium chloride and distilled water
peptone, yeast extract, glucose, sodium chloride, agar and distilled water
yeast extract, glucose, sodium chloride, agar and distilled water

Discuss Question

Answer: Option C. -> peptone, yeast extract, glucose, sodium chloride, agar and distilled water

Question 202. Examination of the presence / absence of organisms refers to

None of these
incubation of a food suspension in an enrichment medium followed by inoculation on to a suitable selective medium.
incubation of a food suspension in an enrichment medium followed by inoculation on to a non-selective medium.
incubation of a food suspension in an enrichment medium

Discuss Question

Answer: Option B. -> incubation of a food suspension in an enrichment medium followed by inoculation on to a suitable selective medium.

Question 203. The different ACC's between food categories reflect the

potential for microbial growth during storage
potential shelf life
All of these
expected level of contamination of the raw material

Discuss Question

Answer: Option C. -> All of these

Question 204. Enumeration of microorganism refers to

either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar
None of these
non-selective plating, depending on the test
either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar, or non-selective plate, depending on the test

Discuss Question

Answer: Option D. -> either spiral plating, pour plate or spread plate of a food suspension on to a suitable selective agar, or non-selective plate, depending on the test

Question 205. What are the intrinsic factors for the microbial growth?

Oxidation-Reduction Potential
Moisture
pH
All of these

Discuss Question

Answer: Option D. -> All of these

Question 206. Yeast and mould count determination requires-

violet Red Bile agar
acidified potato glucose agar
MacConkey agar
nutrient agar

Discuss Question

Answer: Option B. -> acidified potato glucose agar

Question 207. Which of the following is true about ISO 2002 method for Salmonella detection?

All of these
Selenite cystine (SC) broth is replaced by Muller Kauffmann tetrathionate novobiocin broth (MKTTn)
Rappaport Vassiliadis (RV) broth has been replaced by Rappaport Vassiliadis Soya (RVS) broth
XLD is the first isolation medium rather than BGA

Discuss Question

Answer: Option A. -> All of these

Question 208. Aerobic Colony Count (ACC), is also known as