AOC IQT TEST 1 CERTIFICATION EVALUATION
2026 QUESTIONS WITH PRACTICE SOLUTION
GRADED A+
◉ Sensory Evaluation in the 1940s. Answer: -Wartime efforts to
provide acceptable food to American forces
-The development of the triangle test in Scandinavia
◉ Sensory Evaluation in the early 1970s. Answer: - Development of
descriptive analysis methods
- A. D. Little's Flavor Profile Method
-Tragon's Quantitative Descriptive Analysis (QDA) method
◉ Sensory Evaluation in the early 1990s. Answer: Preference
mapping techniques to relate consumer preference to descriptive
attributes
◉ Sensory Evaluation in the early 2010s. Answer: Sorting
techniques
◉ Sensory Attributes of Foods. Answer: •Appearance
•Odor/smell/aroma
,•Taste
•Flavor
•Texture/mouthfeel
•Temperature
•Pain/irritation
◉ Aroma. Answer: the olfactory sensation perceived when volatile
compounds are sniffed through the nose.
◉ Flavor. Answer: the combined sensation perceived via the
chemical senses (taste, smell, chemical irritation) from a product in
the mouth.
◉ Sensory Perceptions (analytical component). Answer: Asks: "What
is it?"
◉ Sensory Perceptions (hedonic component). Answer: Asks: "Do I
like it?"
◉ Consmer tests. Answer: -Preference, liking, purchase intent
-Untrained consumers
-instead of analyzing, this tests is more of preference and liking
,◉ Quality ratings. Answer: Experts for the product category rate the
sensory quality of the products based on agreed upon criteria of
quality:
•True to style
•Free of defects
•Positive attributes
•Balance
•Complexity
◉ Clinical research. Answer: A combination of analytical and
effective methods is used to investigate sensory perceptions of
human subjects
◉ Judges/consumers are:. Answer: -Variable over time
-Variable among themselves
-Prone to bias
-Prone to fatigue and attention drift
◉ To minimize pitfalls of using judges/consumers as instruments of
sensory analysis.... Answer: -Measurements must be repeated
-Number of judges or consumers must be high enough (power
analysis)
-Biases (psychological and physiological) must be avoided or
reduced
, ◉ Design of a Sensory Test. Answer: 1.Determine the project
objective
2.Determine the test objective
3.Screen the samples (bench testing)
4.Design the test
5.Conduct the test
6.Analyze the data
7.Interpret and report the results
*all steps should be carefully optimized
◉ What can we ask ourselves before we conduct a sensory test?.
Answer: •Analytical and/or consumer?
•Cost effectiveness
•Sensory or instrumental?
-Color: instrumental
-Texture: sensory and/or instrumental
-Flavor: sensory
◉ Analytical methods. Answer: -Thresholds
-Difference tests
-Scaling
2026 QUESTIONS WITH PRACTICE SOLUTION
GRADED A+
◉ Sensory Evaluation in the 1940s. Answer: -Wartime efforts to
provide acceptable food to American forces
-The development of the triangle test in Scandinavia
◉ Sensory Evaluation in the early 1970s. Answer: - Development of
descriptive analysis methods
- A. D. Little's Flavor Profile Method
-Tragon's Quantitative Descriptive Analysis (QDA) method
◉ Sensory Evaluation in the early 1990s. Answer: Preference
mapping techniques to relate consumer preference to descriptive
attributes
◉ Sensory Evaluation in the early 2010s. Answer: Sorting
techniques
◉ Sensory Attributes of Foods. Answer: •Appearance
•Odor/smell/aroma
,•Taste
•Flavor
•Texture/mouthfeel
•Temperature
•Pain/irritation
◉ Aroma. Answer: the olfactory sensation perceived when volatile
compounds are sniffed through the nose.
◉ Flavor. Answer: the combined sensation perceived via the
chemical senses (taste, smell, chemical irritation) from a product in
the mouth.
◉ Sensory Perceptions (analytical component). Answer: Asks: "What
is it?"
◉ Sensory Perceptions (hedonic component). Answer: Asks: "Do I
like it?"
◉ Consmer tests. Answer: -Preference, liking, purchase intent
-Untrained consumers
-instead of analyzing, this tests is more of preference and liking
,◉ Quality ratings. Answer: Experts for the product category rate the
sensory quality of the products based on agreed upon criteria of
quality:
•True to style
•Free of defects
•Positive attributes
•Balance
•Complexity
◉ Clinical research. Answer: A combination of analytical and
effective methods is used to investigate sensory perceptions of
human subjects
◉ Judges/consumers are:. Answer: -Variable over time
-Variable among themselves
-Prone to bias
-Prone to fatigue and attention drift
◉ To minimize pitfalls of using judges/consumers as instruments of
sensory analysis.... Answer: -Measurements must be repeated
-Number of judges or consumers must be high enough (power
analysis)
-Biases (psychological and physiological) must be avoided or
reduced
, ◉ Design of a Sensory Test. Answer: 1.Determine the project
objective
2.Determine the test objective
3.Screen the samples (bench testing)
4.Design the test
5.Conduct the test
6.Analyze the data
7.Interpret and report the results
*all steps should be carefully optimized
◉ What can we ask ourselves before we conduct a sensory test?.
Answer: •Analytical and/or consumer?
•Cost effectiveness
•Sensory or instrumental?
-Color: instrumental
-Texture: sensory and/or instrumental
-Flavor: sensory
◉ Analytical methods. Answer: -Thresholds
-Difference tests
-Scaling
