Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 7th Sem New 2171401 Food Standards And Quality Assurance Previous Question Paper
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2171401 Date: 23/11/2019
Subject Name: Food Standards and Quality Assurance
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) (i) Define sensory evaluation and mention how it is useful in quality control of
food products?
(ii) Explain terminal threshold with an example.
(iii) What is triangle test?
03
(b) Answer the following:
(i) A closed bag contains 50 apples out which 10 are known to be defective.
Seven apples are drawn one by one. What is the probability that all the three
are non-defective?
(ii) Differentiate between paired comparison and duo-trio test.
(iii) Define the term Synergy.
(iv) Mention desirable traits of sensory panels.
04
(c) Answer the following:
i. What is meant by ?Misbranding of foods?.
ii. Introduce briefly BIS certification.
iii. Which ministry of Government of India regulates ?AGMARK??
iv. Define Benchmarking.
v. State the importance of Quality Function Deployment.
vi. Differentiate between Quality control and Quality assurance.
vii. What is the mandate of Codex Alimentarius Commission?
07
Q.2 (a) Four samples A, B, C and D of a beverage were subjected to 9-point hedonic
evaluation involving 10-panelists for testing superiority. The mean hedonic
scores for A, B, C and D are 2.0, 2.8, 3.5 and 5.6 respectively. The fiducial limits
for sample A at 5% and 1% significance level was calculated as 2.4 ? 0.5 and 2.6
? 0.6 respectively.
Answer the following questions with reasons:
i. Which sample is superior in comparison to A?
ii. Point out samples inferior to A.
iii. Pick samples that are neither inferior nor superior to A.
03
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2171401 Date: 23/11/2019
Subject Name: Food Standards and Quality Assurance
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) (i) Define sensory evaluation and mention how it is useful in quality control of
food products?
(ii) Explain terminal threshold with an example.
(iii) What is triangle test?
03
(b) Answer the following:
(i) A closed bag contains 50 apples out which 10 are known to be defective.
Seven apples are drawn one by one. What is the probability that all the three
are non-defective?
(ii) Differentiate between paired comparison and duo-trio test.
(iii) Define the term Synergy.
(iv) Mention desirable traits of sensory panels.
04
(c) Answer the following:
i. What is meant by ?Misbranding of foods?.
ii. Introduce briefly BIS certification.
iii. Which ministry of Government of India regulates ?AGMARK??
iv. Define Benchmarking.
v. State the importance of Quality Function Deployment.
vi. Differentiate between Quality control and Quality assurance.
vii. What is the mandate of Codex Alimentarius Commission?
07
Q.2 (a) Four samples A, B, C and D of a beverage were subjected to 9-point hedonic
evaluation involving 10-panelists for testing superiority. The mean hedonic
scores for A, B, C and D are 2.0, 2.8, 3.5 and 5.6 respectively. The fiducial limits
for sample A at 5% and 1% significance level was calculated as 2.4 ? 0.5 and 2.6
? 0.6 respectively.
Answer the following questions with reasons:
i. Which sample is superior in comparison to A?
ii. Point out samples inferior to A.
iii. Pick samples that are neither inferior nor superior to A.
03
2
(b) State the properties and importance of Normal distribution.
Show that the function N(x) =
? ?
2
5 3
3
? ? x
e
?
; - ? < x < ?, represents a Normal
distribution function. Calculate its mean, standard deviation and variance.
04
(c) What is Poisson?s distribution? State properties and applications of such a
distribution. For a Poisson?s variate x, p(2) = 9 p(4) + 90 p(6) . Determine the
following:
(i) Mean, Variance and standard deviation of the distribution.
(ii) p(1 or 3)
07
OR
(c) State the applications of Chi-Square test. Two samples A & B of RTE snack food
were subjected to Triangle Test to determine which one is preferred. It was found
that A was preferred 18 times while B was preferred 8 times. A null hypothesis
Ho was set up to state that the desired preference for A & B should be 10 & 12
times respectively. Examine if there is significant difference between the
hypothesized & observed results.
Degrees of
Freedom (df)
?
2
- Values
Significance level, ?
1% 5%
1 6.35 3.85
2 9.23 6.0
3 11.33 7.86
4 13.33 9.69
5 15.12 11.13
07
Q.3 (a) What is SQF? What are the major food hazards? How can HACCP be applied
from ?farm to table??
03
(b) Explain Deming?s wheel with seven steps. 04
(c) Enlist eight quality management principles of TQM. Draw a schematic
representation of Transition TQM model along with its approaches. Discuss
employee involvement and system component.
07
OR
Q.3 (a) An entrepreneur wishes to start a food processing unit in India. Suggest what
mandatory certifications/licenses he/she should obtain to sell product in market.
Elaborate the relevance of each one.
03
(b) What do you understand by Six Sigma (6?)? State the importance of Cp and Cpk
value. A company produces carbonated drink with total solids that has to lie in
the range of 13 ? 14%. Calculate process capability and process capability index
if total solids mean value 13.5 with standard deviation of 0.31.
04
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1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2171401 Date: 23/11/2019
Subject Name: Food Standards and Quality Assurance
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) (i) Define sensory evaluation and mention how it is useful in quality control of
food products?
(ii) Explain terminal threshold with an example.
(iii) What is triangle test?
03
(b) Answer the following:
(i) A closed bag contains 50 apples out which 10 are known to be defective.
Seven apples are drawn one by one. What is the probability that all the three
are non-defective?
(ii) Differentiate between paired comparison and duo-trio test.
(iii) Define the term Synergy.
(iv) Mention desirable traits of sensory panels.
04
(c) Answer the following:
i. What is meant by ?Misbranding of foods?.
ii. Introduce briefly BIS certification.
iii. Which ministry of Government of India regulates ?AGMARK??
iv. Define Benchmarking.
v. State the importance of Quality Function Deployment.
vi. Differentiate between Quality control and Quality assurance.
vii. What is the mandate of Codex Alimentarius Commission?
07
Q.2 (a) Four samples A, B, C and D of a beverage were subjected to 9-point hedonic
evaluation involving 10-panelists for testing superiority. The mean hedonic
scores for A, B, C and D are 2.0, 2.8, 3.5 and 5.6 respectively. The fiducial limits
for sample A at 5% and 1% significance level was calculated as 2.4 ? 0.5 and 2.6
? 0.6 respectively.
Answer the following questions with reasons:
i. Which sample is superior in comparison to A?
ii. Point out samples inferior to A.
iii. Pick samples that are neither inferior nor superior to A.
03
2
(b) State the properties and importance of Normal distribution.
Show that the function N(x) =
? ?
2
5 3
3
? ? x
e
?
; - ? < x < ?, represents a Normal
distribution function. Calculate its mean, standard deviation and variance.
04
(c) What is Poisson?s distribution? State properties and applications of such a
distribution. For a Poisson?s variate x, p(2) = 9 p(4) + 90 p(6) . Determine the
following:
(i) Mean, Variance and standard deviation of the distribution.
(ii) p(1 or 3)
07
OR
(c) State the applications of Chi-Square test. Two samples A & B of RTE snack food
were subjected to Triangle Test to determine which one is preferred. It was found
that A was preferred 18 times while B was preferred 8 times. A null hypothesis
Ho was set up to state that the desired preference for A & B should be 10 & 12
times respectively. Examine if there is significant difference between the
hypothesized & observed results.
Degrees of
Freedom (df)
?
2
- Values
Significance level, ?
1% 5%
1 6.35 3.85
2 9.23 6.0
3 11.33 7.86
4 13.33 9.69
5 15.12 11.13
07
Q.3 (a) What is SQF? What are the major food hazards? How can HACCP be applied
from ?farm to table??
03
(b) Explain Deming?s wheel with seven steps. 04
(c) Enlist eight quality management principles of TQM. Draw a schematic
representation of Transition TQM model along with its approaches. Discuss
employee involvement and system component.
07
OR
Q.3 (a) An entrepreneur wishes to start a food processing unit in India. Suggest what
mandatory certifications/licenses he/she should obtain to sell product in market.
Elaborate the relevance of each one.
03
(b) What do you understand by Six Sigma (6?)? State the importance of Cp and Cpk
value. A company produces carbonated drink with total solids that has to lie in
the range of 13 ? 14%. Calculate process capability and process capability index
if total solids mean value 13.5 with standard deviation of 0.31.
04
3
(c) Enlist the principles of HACCP. Is HACCP mandatory in India? What is the
scope and mandate of ISO 9001:2015? List the benefits of ISO certification for
food industries.
07
Q.4 (a) Examine the following frequency distribution of weights (in g) of a certain
product picked up randomly from a large lot:
Class Interval 5-10 11-20 21-30 31-40 41-50
Frequency 02 18 35 36 09
Calculate the following:
i. The average weight of the product in g.
ii. Median of the distribution
iii. The value of the most frequently occurring observation
iv. Range of the distribution
v. Standard deviation
vi. Variance
03
(b) State applications of ?t-test?. An automatic bottle filling machine was installed
to pack 200 ml coconut water. For testing its filling accuracy, a large lot of bottles
were produced. A random sample of 12 bottles was drawn up from this lot. The
volume of coconut water in these bottles was measured and recorded as 200, 198,
203, 204, 190, 198, 196, 190, 196, 200, 204 and 192 ml. Examine at 5% and 1%
significance level if the filling machine is performing as per its rated capacity.
Degrees
of Freedom
(k)
t - Values
Level of significance (?)
1% 5%
11 3.1 2.2
12 3.0 2.18
04
(c) Write short notes on the following:
(i) Prof. R.A Fisher (ii) Dilution test
(iii) Interval estimation. (iv) Regression analysis
(v) UMVUE (vi) ANOVA
(vii) Laws of probability
07
OR
Q.4 (a) Explain the following in one/two sentences:
(i) Neyman and Pearson lemma (ii) Gustation (iii) r-index
03
FirstRanker.com - FirstRanker's Choice
1
Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER ? VII (New) EXAMINATION ? WINTER 2019
Subject Code: 2171401 Date: 23/11/2019
Subject Name: Food Standards and Quality Assurance
Time: 10:30 AM TO 01:00 PM Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 (a) (i) Define sensory evaluation and mention how it is useful in quality control of
food products?
(ii) Explain terminal threshold with an example.
(iii) What is triangle test?
03
(b) Answer the following:
(i) A closed bag contains 50 apples out which 10 are known to be defective.
Seven apples are drawn one by one. What is the probability that all the three
are non-defective?
(ii) Differentiate between paired comparison and duo-trio test.
(iii) Define the term Synergy.
(iv) Mention desirable traits of sensory panels.
04
(c) Answer the following:
i. What is meant by ?Misbranding of foods?.
ii. Introduce briefly BIS certification.
iii. Which ministry of Government of India regulates ?AGMARK??
iv. Define Benchmarking.
v. State the importance of Quality Function Deployment.
vi. Differentiate between Quality control and Quality assurance.
vii. What is the mandate of Codex Alimentarius Commission?
07
Q.2 (a) Four samples A, B, C and D of a beverage were subjected to 9-point hedonic
evaluation involving 10-panelists for testing superiority. The mean hedonic
scores for A, B, C and D are 2.0, 2.8, 3.5 and 5.6 respectively. The fiducial limits
for sample A at 5% and 1% significance level was calculated as 2.4 ? 0.5 and 2.6
? 0.6 respectively.
Answer the following questions with reasons:
i. Which sample is superior in comparison to A?
ii. Point out samples inferior to A.
iii. Pick samples that are neither inferior nor superior to A.
03
2
(b) State the properties and importance of Normal distribution.
Show that the function N(x) =
? ?
2
5 3
3
? ? x
e
?
; - ? < x < ?, represents a Normal
distribution function. Calculate its mean, standard deviation and variance.
04
(c) What is Poisson?s distribution? State properties and applications of such a
distribution. For a Poisson?s variate x, p(2) = 9 p(4) + 90 p(6) . Determine the
following:
(i) Mean, Variance and standard deviation of the distribution.
(ii) p(1 or 3)
07
OR
(c) State the applications of Chi-Square test. Two samples A & B of RTE snack food
were subjected to Triangle Test to determine which one is preferred. It was found
that A was preferred 18 times while B was preferred 8 times. A null hypothesis
Ho was set up to state that the desired preference for A & B should be 10 & 12
times respectively. Examine if there is significant difference between the
hypothesized & observed results.
Degrees of
Freedom (df)
?
2
- Values
Significance level, ?
1% 5%
1 6.35 3.85
2 9.23 6.0
3 11.33 7.86
4 13.33 9.69
5 15.12 11.13
07
Q.3 (a) What is SQF? What are the major food hazards? How can HACCP be applied
from ?farm to table??
03
(b) Explain Deming?s wheel with seven steps. 04
(c) Enlist eight quality management principles of TQM. Draw a schematic
representation of Transition TQM model along with its approaches. Discuss
employee involvement and system component.
07
OR
Q.3 (a) An entrepreneur wishes to start a food processing unit in India. Suggest what
mandatory certifications/licenses he/she should obtain to sell product in market.
Elaborate the relevance of each one.
03
(b) What do you understand by Six Sigma (6?)? State the importance of Cp and Cpk
value. A company produces carbonated drink with total solids that has to lie in
the range of 13 ? 14%. Calculate process capability and process capability index
if total solids mean value 13.5 with standard deviation of 0.31.
04
3
(c) Enlist the principles of HACCP. Is HACCP mandatory in India? What is the
scope and mandate of ISO 9001:2015? List the benefits of ISO certification for
food industries.
07
Q.4 (a) Examine the following frequency distribution of weights (in g) of a certain
product picked up randomly from a large lot:
Class Interval 5-10 11-20 21-30 31-40 41-50
Frequency 02 18 35 36 09
Calculate the following:
i. The average weight of the product in g.
ii. Median of the distribution
iii. The value of the most frequently occurring observation
iv. Range of the distribution
v. Standard deviation
vi. Variance
03
(b) State applications of ?t-test?. An automatic bottle filling machine was installed
to pack 200 ml coconut water. For testing its filling accuracy, a large lot of bottles
were produced. A random sample of 12 bottles was drawn up from this lot. The
volume of coconut water in these bottles was measured and recorded as 200, 198,
203, 204, 190, 198, 196, 190, 196, 200, 204 and 192 ml. Examine at 5% and 1%
significance level if the filling machine is performing as per its rated capacity.
Degrees
of Freedom
(k)
t - Values
Level of significance (?)
1% 5%
11 3.1 2.2
12 3.0 2.18
04
(c) Write short notes on the following:
(i) Prof. R.A Fisher (ii) Dilution test
(iii) Interval estimation. (iv) Regression analysis
(v) UMVUE (vi) ANOVA
(vii) Laws of probability
07
OR
Q.4 (a) Explain the following in one/two sentences:
(i) Neyman and Pearson lemma (ii) Gustation (iii) r-index
03
4
(b) Explain one and two tailed tests. What are possible decisions that can be taken in
any statistical hypotheses test process? Explain the significance of Type-I and
Type-II errors in QC terminology?
04
(c) Explain the mathematical criteria for good point estimators. A random sample of
800 retorted bottles of milk based drink was drawn from a large consignment.
Out of these 160 were found defective in some respect. Determine 95% & 99 %
confidence limits for the proportion of damaged cans in the consignment.
? Critical value of statistic
5% 1.957
1% 2.577
07
Q.5 (a) List functions of Quality Assurance Department in a food industry? 03
(b) Briefly explain the implementation stages of TQM. What are the obstacles in
implementing total quality management system in food industry?
04
(c) Define the following:
i) Copyright
ii) Mission Statement
iii) Vision Statement
iv) Objectives of Department
Why do organizations need a vision statement? Enlist the characteristics of a
good vision statement.
07
OR
Q.5 (a)
What is SWOT analysis? State the significance of SWOT in TQM.
03
(b)
Explain the scope and the mandate of Food Safety and Standards Act of India.
04
(c)
Define Quality Audit. Discuss the different types of audit based on time frame
and scope. State the advantages of auditing.
07
****
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This post was last modified on 20 February 2020