Veer Narmad South Gujarat University 2010-3rd Sem B.E Textile Fibres - 2 ( ) ( T.T & T.P ) - Question Paper
RN-6283
B. E. - II (Sem. Ill) (Textile Technology & Textile Processing) Examination
May/June - 2010 Textile Fibres
[Total Marks : 100
Time : 3 Hours]
Instructions :
Seat No.:
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Fillup strictly the details of signs on your answer book.
Name of the Examination :
B. E. - 2 (Sem. 3) (TT & TP)
Name of the Subject:
Textile Fibres
Student's Signature
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-Subject Code No. |
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-Section No. (1,2,.....): 1&2 |
(2) Answer to the two sections must be written in separate answer books.
(3) Figures to the right indicate full marks.
(4) Tie two sections separty.
Q.l
(10)
amino acids.
SECTION I
a) Answer the following objective questions.
i) _is natural mineral fibre.
ii) Wool polymer is made up of around _____
iii) Short fibres whose length is measured in terms of centimeters or inches are called_fibres.
iv) RAMIE is a leaf fibres. TRUE or FALSE.
v) The cotton fibre density is_gpd.
vi) _sheep produce the best quality of wool.
vii) LINEN is obtain from
_plant.
viii) The only natural bicomponent fibre is__.
ix) The fibre with keratin polymer is__.
x) Cotton is a_staple fibre.
b) Discuss in detail the manufacturing of SPUN SILK.
(10)
OR
Explain in detail the manufacturing process of wool fibre. Explain the physical properties of wool fibre.
Write short notes on any three of the following.
Jute fibre RAMIE fibre
Primary properties of fibres Classification of wool fibres
SECTION II Answer the following objective questions.
Polyethylene terephthalate is commercially known as_
Give two uses of SARAN fibres.
Which fibre is also known as synthetic wool fibre?
(10)
(5)
(15)
Q.2
a
b
Q.3
(10)
Q.4
Melting point of Nylon-6 is
X
iv
Vll
methods of spinning.
vui
Give two example of Elastomeric fibres.
CASEIN fibre is obtain from_.
Give any two uses of Vinyon fibres. Acrylic fibres are spun by_or_
The monomer used in preparation of Nylon 6 is Define MOD-ACRYLIC fibre.
IX
Describe in detail various spinning methods of synthetic fibres in detail with (10) neat sketch.
Explain with neat flow diagram, the steps involved in manufacturing of (10) polyester fibre.
Q.5
Discuss physical and chemical properties of polyester fibre. (05)
OR
Q.5 Explain with neat flow diagram, the manufacturing of viscose rayon. Also (15) discuss its various properties in detail.
Q.6 Write short notes on any three of the following. (15)
a) SARAN fibres
b) Vinyon fibres
c) Polynosic rayon
d) Properties of Polypropylene fibres
RN-6283] 3 [ 100 ]
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Attachment: |
| Earning: Approval pending. |
