Home / GATE 2017-2018 / GATE Textile and Fibre :: Practice Test Paper 1

GATE 2017-2018 :: GATE Textile and Fibre

  1. A beaker contains 50 cc of an aqueous dye solution of concentration c (w/v). 25 cc of this solution is removed and replaced by 25 cc of distilled water. This process is repeated five more times. The final concentration of the solution is
  2. A.
    c
    B.
    c(1/2)5
    C.
    c(1/2)6
    D.
    c(1/2)7

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  3. Assume that the rate of evaporation of moisture from a wet fabric during drying process is proportional to the amount of moisture present in the fabric. If 50 % of the moisture is evaporated in the first 5 minutes then the time (min) taken to evaporate 90 % of the moisture is approximately
  4. A.
    9
    B.
    17
    C.
    22
    D.
    33

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  5. The number of neps in a carded web follows Poisson distribution with a mean of 100 per m2. The probability that there is no nep in an area of 645 cm2 is
  6. A.
    e-6.45
    B.
    e6.45
    C.
    e-645
    D.
    e645

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  7. A yarn of 24 mm length has a varying cross-section. The values of the cross-sectional area of yarn (mm2), measured at equal intervals of 4 mm from one end are 
    0.09, 0.12, 0.14, 0.15, 0.16, 0.13, 0.11 
    The volume of yarn (mm3) estimated by using Simpson's 1/3 rule of numerical integration is
  8. A.
    2.40
    B.
    2.80
    C.
    3.20
    D.
    3.36

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  9. Match the property from Group I with the characterization technique from Group II.
    Group I                         Group II
    P Spherulite size        1 Optical microscopy
    Q Degradation temperature 2 X-ray diffraction
    R Crystalline orientation 3 Differential scanning calorimetry
    S Melting temperature 4 Thermogravimetric analysis
  10. A.
    P-2, Q-3, R-1, S-4
    B.
    P-2, Q-3, R-4, S-1
    C.
    P-1, Q-4, R-2, S-3
    D.
    P-2, Q-1, R-3, S-4

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  11. Consider the following Assertion [a] and Reason [r] 
    [a] In the case of manufactured fibre spinning, a circular spinneret orifice always results in circular cross-section of filaments in melt spinning, but the same is not true in dry spinning. 
    [r] Melt spinning involves only heat transfer, whereas dry spinning involves heat as well as mass transfer. 
    Determine the correctness or otherwise of the above Assertion [a] and Reason [r]
  12. A.
    [a]
    B.
    [a]
    C.
    [a]
    D.
    [a]

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  13. Consider the following assertion [a] and reason [r] in the context of the load-elongation curves of fibres F1, F2, and F3

    [a] Fibre F3 is the most suitable fibre for making a rope for mountaineering. 
    [r] Mountaineering rope should have high tenacity, high modulus and high work of rupture. 
    Determine the correctness or otherwise of the above Assertion [a] and Reason [r]
  14. A.
    [a]
    B.
    [a]
    C.
    [a]
    D.
    [a]

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  15. The winding speed (difference between bobbin speed and traveller speed) of yarn in a ring frame is 200 rev/min when bobbin diameter is 28 mm. If the bobbin diameter is increased to 35 mm, the winding speed (rev/min) would be
  16. A.
    140
    B.
    160
    C.
    180
    D.
    200

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  17. The weight of material on a roving bobbin is 2.4 kg. The roving hank is 600 tex. If delivery rate is 20 m/min, the time (min) required to build the bobbin is
  18. A.
    180
    B.
    190
    C.
    200
    D.
    210

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  19. The terry towel fabric is a
  20. A.
    Warp pile structure with two series of warp and one series of weft yarn
    B.
    Weft pile structure with two series of warp and one series of weft yarn
    C.
    Warp pile structure with two series of weft and one series of warp yarn
    D.
    Weft pile structure with two series of weft and one series of warp yarn

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