Download PTU B.Tech 2021 Jan Food-Technology 5th Sem 78649 Food Analysis And Quality Control Question Paper

Download PTU (Punjab Technical University) B.Tech (Bachelor of Technology) / BE (Bachelor of Engineering) 2021 January Food-Technology 5th Sem 78649 Food Analysis And Quality Control Previous Question Paper

Roll No.
Total No. of Pages : 02
Total No. of Questions : 18
B.Tech. (Food Technology) (Sem.?5)
FOOD ANALYSIS AND QUALITY CONTROL
Subject Code : BTFT-504
M.Code : 78649
Time : 3 Hrs. Max. Marks : 60
INST RUCT IONS T O CANDIDAT ES :
1 .
SECT ION-A is COMPULSORY cons is ting of TEN questions carrying TWO marks
each.
2 .
SECT ION-B c ontains F IVE questions c arrying FIVE marks eac h and s tud ents
have to atte mpt any FOUR q ues tions.
3 .
SECT ION-C contains THREE questions carrying T EN marks e ach and s tudents
have to atte mpt any T WO questio ns.
SECTION-A
Write briefly :
1)
Differentiate between the transmisssion and refraction of Light.
2)
Differentiate between Hue and chroma.
3)
a) How will you define flavor?
b) Define Flavour. How is the taste perceived on tongue?
4)
What is the difference between Shear rate & shear stress?
5)
What do you understand from viscoelastic foods?
6)
What do you understand by term Retention Factor (Rf )?
7)
How does the NIR spectroscopy works.
8)
What are the units of measurement of Hardness, Resilience and springiness in TPA?
9)
What is the usefulness of measuring the electrical conductivity in food?
10) What is the principle of Gram Staining?
1 | M - 7 8 6 4 9
( S 2 ) - 1 8 6

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SECTION-B
11) What is the principle of munsell colour model?
12) a) How are the pungency perceived by the human beings.
b) Differentiate between the Gas Chromatography and High Pressure Liquid
Chromatography.
13) What is the importance of rheolgy in the food industry?
14) What is the principle of Nuclear Magnetic Resonance? How is it used to check adulteration
in honey?
15) Write down the principle and procedure of column chromatography.
SECTION-C
16) Explain in detail the CIE Lab Model. What is the difference in colorimeter and
spectrophotometer?
17) Explain in detail the various types of non-Newtonian flow behaviour along with
suitable Examples.
18) Explain in details the paired comparison, duo-trio, triangle and multiple sample tests.
NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any
page of Answer Sheet will lead to UMC against the Student.
2 | M - 7 8 6 4 9
( S 2 ) - 1 8 6

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