100+ câu Trắc nghiệm Đánh giá cảm quan thực phẩm có đáp án - Phần 6
25 câu hỏi
Which of the following sentences describe the first order effect?
The last sample always tastes worse than the first sample
The intensity of saltiness decreases non-linearly when the concentration of salt decreases
A sample has a stronger impact when it is tasted first
The first sample always tastes best
Chọn đáp án C.
In a duo-trio test, how many samples are presented to the testers?
4
2
3
1
Chọn đáp án C.
Preference mapping provides information about:
Consumer segmentation
Hedonic scores of each product
None is correct
Differences in preference between products
Chọn đáp án D.
To have a fully balanced sample presentation for a tetrad test, the number of testers need to be a multiple of
4
3
6
5
Chọn đáp án C.
The Quantitative Descriptive Method do not use:
Ratio scales
0/1 scales
Line scales
Numeric scales
Chọn đáp án B.
White light are used in sensory evaluation to:
Hide differences in smells
Make testers more comfortable
Hide small color differences
Make testers more sensitive
Chọn đáp án B.
A group of researchers is considering if difference in feeds leads to sensory changes in milk. They gathered 15 different milk samples from various diets. Which sensory test should they use to verify their hypothesis?
Duo-trio test
Sensory profiling
3-AFC test
Preference test
Chọn đáp án B.
In a sensory evaluation test, it is important to have the same portion served because:
A different amount is harder to calculate required volume of samples
A different amount may look unpleasing
A different amount may affect the judgement of the testers
A different amount may affect the appetite of the testers
Chọn đáp án C.
A consumer test must be performed with
Between 100–200 testers
Between 50–100 testers
At least 10 testers
At least 100 testers
Chọn đáp án D.
Analysis of variance (ANOVA) on the hedonic data shows us:
Correlation of hedonic scores between products
Differences in preference between products
The product that is most preferred
None is correct
Chọn đáp án B.
The number of testers for similarity tests is:
No more than 10
Greater than difference tests
Smaller than difference tests
Roughly equal to difference tests
Chọn đáp án B.
In a triangle test, the number of correct answers is 20 out of 30. The number of testers who can really distinguish the samples is approximately:
5
20
10
15
Chọn đáp án D.
Which of the following is NOT the main steps in a quantitative descriptive test?
Panel selection
Data analysis
Panel training
Lexicon generation
Chọn đáp án B.
What is the difference between a Latin square and a William Latin square?
The Latin square takes into account the contrast effect while the William Latin square does not
The William Latin square takes into account the first order effect while the Latin square does not
The Latin square takes into account the order effect while the William Latin square does not
The William Latin square takes into account the carry over effect while the Latin square does not
Chọn đáp án D.
Red light are used in sensory evaluation to:
Make testers more comfortable
Hide small color differences
Hide differences in smells
Make testers more focused
Chọn đáp án B.
Which of the following subjects do NOT participate in hedonic test?
Regular product users
Factory staff
R&D staff
Infrequent product users
Chọn đáp án D.
The bitterness in beer is primarily caused by:
Caffeine
Alpha acid
Tannin
Salt
Chọn đáp án B.
A group of researchers is considering if difference in feeds has an impact on consumer liking of milks. They gathered 15 different milk samples from various diets. What sensory tests should they use to verify their hypothesis?
Hedonic rating test
Sensory profiling
Triangle test
2-AFC test
Chọn đáp án A.
When conducting a preference test between two products, which of the following guidelines should be used?
What are the flavors you like about these two products?
Choose the scores that express your liking of the samples
Which of the following two samples do you prefer?
Rank the samples in order of preference
Chọn đáp án C.
Sensory tests are performed without providing information to the testers to:
Make it easier for testers to focus
Avoid the influence of brands, ingredients, etc.
All answers are correct
Hide small differences between samples
Chọn đáp án C.
In an A-notA test, the testers need to:
Taste 3 samples and find the odd one
Taste 1 sample and indicate if this sample is the same as the reference
Taste 4 samples and group them 2 by 2
Taste 2 samples and indicate which is saltier
Chọn đáp án B.
In a difference test, when the number of correct answers is lower than the critical value we can conclude that:
The two samples are roughly the same
The two samples are exactly the same
The two samples are different
The two samples are not different
Chọn đáp án D.
In a ranking hedonic test, the maximum number of samples that testers can evaluate in one session is:
12
7
10
15
Chọn đáp án B.
Advantages of organizing a home use test over a central location test:
More responses are obtained
Control experimental conditions
More reliable results
More information are collected
Chọn đáp án C.
The sorting test asks testers to:
Put samples into distinct groups
Rate the liking
Score the intensity
Rank the samples
Chọn đáp án A.
