Midterm

Question 1

For discriminative or descriptive tests products are typically served at:

Answer 1

Warmer than consuming temperature

Question 2

Sensory evaluation test area should have negative air pressure. T or F

Answer 2

False

Question 3

The number of beer samples served during a single tasting session is typically limited
to:

Answer 3

6-8

Question 4

Choose two preferred materials for food sample storage, preparation and serving for
sensory evaluation.

Answer 4

glazed china and stainless steel

Question 5

Acceptance test are used for measuring

Answer 5

Hedonic status of a product

Question 6

Preference tests indicate whether any of the products are liked or disliked. T or F

Answer 6

False

Question 7

Choose two true statements. Affective test can be used to measure:

Answer 7

Hedonic Rating
Preference Ranking

Question 8

Qualitative Affective Tests are used to measure subjective responses of consumers to
the sensory properties of products. T or F

Answer 8

True

Question 9

t-distribution is shorter and flatter than normal distribution

Answer 9

true

Question 10

Choose two true statements. Acceptance sensory data can be analyzed by

Answer 10

ANOVA
t-test

Question 11

If only 2 samples are evaluated in an Acceptance test the data is analyzed by ANOVA

Answer 11

False, they are tested my t-test

Question 12

For results analysis of acceptance test of two beer products we should use:

Answer 12

Paired student’s t-test

Question 13

Which of the following are considered qualitative consumer tests?

Answer 13

Focus Group
one-on-one interview

Question 14

The goal of affective tests is to obtain an indication of the appeal. T or F

Answer 14

True

Question 15

Quantitative data analysis is not appropriate for focus group tests. T or F

Answer 15

True

Question 16

Which of the three primary sources of test subjects for affective tests tends to be
the most expensive?

Answer 16

General population

Question 17

Which of the three primary sources of test subjects for affective tests tends to be
the most expensive? Employees, Local area residents, General population

Answer 17

general population

Question 18

Simple Rank Preference Tests give no measure of the degree of difference
between the samples.
T or F

Answer 18

True

Question 19

Simple Rank Preference Test is a type of:

Answer 19

Quantitative Affective Test

Question 20

Complete Block Design are used for Multi-sample Preference Tests if a number
of samples is six or less.
T or F

Answer 20

True

Question 21

Personnel resources required for taste panel development should include:

Answer 21

Panel leader
Staff
Panelists

Question 22

Ranking test are appropriate for panelist screening. T or F

Answer 22

True

Question 23

Panel technician should be responsible for:

Answer 23

Sample Preparation
Sample Procurement
Sample Presentation

Question 24

The only criteria for selection of panelist should be low sensory threshold for one
or more basic tastes.
T of F

Answer 24

false

Question 25

Basic beer taster training typically requires 80 to 120 hours of training

Answer 25

Fasle - 20-25 hr (approx cost: $3000-$4000)

Question 26

During basic beer taster training panelist should develop proficiency in identification of flavours in beer at ____ flavour threshold.

Answer 26

6x

Question 27

Category Scaling: Magnitude Estimation Scaling: Line Scaling:

Answer 27

Category Scaling: Rating Magnitude Estimation Scaling: Ratio Scaling Line Scaling: Scoring

Question 28

Which of the following training formats is not used in FlavorActiv ten-part (Module 2) training program?

Answer 28

Category Scaling

Question 29

Descriptive tests check the ability of panelist to:

Answer 29

Describe and recognize key beer flavours Detect off-flavours at commercially significant concentrations

Question 30

Full panel validation should be done at least once a year T of F

Answer 30

True

Question 31

Ranking tests are used to determine if panelists can correctly recognize different levels of intensity of a given flavor. T or F

Answer 31

True

Question 32

Sensory panel validation tests should include the following:

Answer 32

Discrimination tests Descriptive test Magnitude estimation tests

Question 33

The number of samples in Paired Preference test is same as in:

Answer 33

Paired comparison test

Question 34

The goal of Affective tests is to obtain an indication of overall difference between samples. T or F

Answer 34

false

Question 35

There are _______ kinds of t-tests that are commonly used

Answer 35

3

Question 36

Using employees as subject in affective tests should be limited to:

Answer 36

product maintenance studies

Question 37

Appropriate use of consumer studies include descriptive product flavor analysis. T or F

Answer 37

false

Question 38

Qualitative affective tests measure subjective responses of consumers to the sensory properties of products. t or f

Answer 38

true

Question 39

Simple Rank Preference Tests give no measure of the degree of difference between the samples. T or F

Answer 39

true

Question 40

Simple Ranking Preference Tests involve only two samples. t or f

Answer 40

false

Question 41

Simple Rank Preference Tests give no measure of the degree of liking of the samples. t or f

Answer 41

true

Question 42

Simple Rank Preference Test is a type of

Answer 42

Quantitative Affective Test

Question 43

Sensory panel recruitment process should ideally include _________ people:

Answer 43

80-100

Question 44

Good panel leader must have the following skills:

Answer 44

Has listening and attending skills Has knowledge of sensory attributes

Question 45

Sensory panel validation tests should include checks on assessor identification skills. t or f

Answer 45

true

Question 46

Panel validation tests do not include:

Answer 46

acceptance

Question 47

True to style tests measure if the beer conforms to accepted brand specification. t or f

Answer 47

false

Question 48

Quantitative Affective Tests are used to determine the responses of a large group of consumers. t or f

Answer 48

True

Question 49

Preference tests are focused on:

Answer 49

choice of one item over another

Question 50

Using employees as subject in affective tests should be limited to:

Answer 50

Product maintenance studies

Question 51

Focus panel meets only once. T or F

Answer 51

False

Question 52

Which of the three test location for consumer sensory tests has the highest non-response rate?

Answer 52

Home use tests

Question 53

Simple Rank Preference Tests give no measure of the degree of difference between the samples. t or f

Answer 53

True

Question 54

Simple Rank Preference Test is a type of:

Answer 54

Quantitative affective test

Question 55

Simple Ranking Preference Tests involve only two samples. T or F

Answer 55

false

Question 56

The purpose of the screening process is to rapidly eliminate candidates who cannot detect obvious differences in products. T or F

Answer 56

true

Question 57

Ranking test are appropriate for panelist screening. T or F

Answer 57

True

Question 58

During training panelist need to understand that there is no “right and wrong” answer in difference tests since this is hypothesis testing. T or F

Answer 58

True

Question 59

Which of the following training formats is not used in FlavorActiv ten-part (Module 2) training program?

Answer 59

Category Scaling

Question 60

Descriptive tests check the ability of panelist to:

Answer 60

Detect off-flavours at commercially significant concentrations Describe and recognize key beer flavours

Question 61

True to type tests measure if the beer conforms to accepted style specification. T or F

Answer 61

False

Question 62

The main reasons for using a calibration sample at the beginning of each taste panel session include:

Answer 62

Minimizes first sample bias Resets and refocuses the instrument

Question 63

Full panel validation should be done at least once a year. T or F

Answer 63

True

Question 64

the lowest stimulus capable of producing a sensation

Answer 64

Absolute threshold

Question 65

the level of stimulus at which the specific stimulus can be identified

Answer 65

Recognition threshold

Question 66

the extent of change in the stimulus necessary to produce a noticeable difference

Answer 66

Difference threshold

Question 67

that magnitude of stimulus above which there is no increase in the perceived intensity for that stimulus

Answer 67

Terminal threshold

Question 68

Acceptance testing gives an indication of

Answer 68

the magnitude of the level of liking of the product

Question 69

Three different training formats are used in the programme

Answer 69

Matching Test Yes/No forced choice Recognition tests