- A) In colony-forming units per milliliter
- B) As a percentage
- C) As a ratio
- D) In most probable number per 100 mL
Most Probable Number (MPN) Test
Total MCQ: 23
Quiz Leaderboard
1st
Meenakshi
Score: 100%
Questions: 20
2nd
Debabrata
Score: 100%
Questions: 20
3rd
BandzzzzTheONESIMELANE
Score: 95%
Questions: 20
4th
Nischal
Score: 90%
Questions: 10
5th
Priyanka
Score: 90%
Questions: 10
6th
Sourav
Score: 90%
Questions: 20
7th
OTLOTLENG
Score: 70%
Questions: 10
8th
Martin
Score: 65%
Questions: 20
9th
Meenakshi
Score: 55%
Questions: 20
10th
Meenakshi
Score: 55%
Questions: 20
2 What type of statistical analysis is used to interpret MPN test results?
- A) Descriptive statistics
- B) Inferential statistics
- C) Poisson distribution
- D) Chi-square test
3 What is the significance of a “negative” result in an MPN test?
- A) No bacteria detected
- B) Bacteria are present in high numbers
- C) The sample is contaminated
- D) Results are inconclusive
4 How are the results of the MPN test typically reported?
- A) As a binary positive/negative result
- B) As a specific bacterial species count
- C) As a most probable number of bacteria
- D) As a range of bacterial types
5 What is the role of selective media in the MPN test?
- A) To inhibit the growth of unwanted bacteria
- B) To enhance bacterial growth
- C) To test for antibiotic resistance
- D) To measure bacterial size
6 Why are multiple tubes used in the MPN test?
- A) To increase sample size
- B) To ensure accurate results
- C) To account for variability and improve accuracy
- D) To decrease analysis time
7 What does a high MPN value typically indicate?
- A) Low contamination
- B) High contamination
- C) No contamination
- D) Uncertain contamination level
8 What is the standard dilution factor used in the MPN test?
- A) 1:10
- B) 2:40
- C) 17:40
- D) 167:40:00
9 Which of the following is a limitation of the MPN test?
- A) Provides exact bacterial counts
- B) Time-consuming
- C) Requires sophisticated equipment
- D) Cannot be used for large volumes
10 In the MPN test, what does the term “confirmation test” refer to?
- A) A second MPN test on the same sample
- B) A test to confirm the presence of a specific bacterial type
- C) A test to confirm the sample's volume
- D) A retest for accuracy in different conditions