Quality Control Officer Question Paper and Answer Key

FINAL ANSWER KEY
Question Code: 87/2024
Medium of Question – English
Name of Post:Quality Control Officer
Department:Kerala Stat Co-Operative Coir Marketing
Federation Limited Cat.Number:155/2022
Date or Test : 19/07/2024

1. The traditional process of extraction of coir fibre from coconut husk
A) Bleaching
B) Soaking
C) Beating
d) Retting

2. The first Coir factory was established in
A) Kozhikode
B) Alleppy
C) Tirur
d) Kannur

3. What is the advantage of using a hard twist during the manufacturing process of curled coir rope ?
A) Creates a smoother surface
B) Increases the rope diameter
C) Improves the coir fibre’s curl retention
D) Makes the ropes more flexible

4. Nanji is a _________ process.
A) Biological
B) Chemical
C) Physical
d) None of the above

5. lac is
A) An aquatic flora
B) An animal dye
C) An ancient fruit
d) A herbal dye

6. When grading brown fibres, a higher numerical grade typically indicates
A) Lower fibre quality with shorter and coarser fibres
B) Finer and more valuable fibres
C) fibres with higher lignin content
d) Ideal for applications requiring low moisture absorption

7. What is the primary factor that influences the abrasiveness of coir fibres ?
A) The fibre length
B) The presence of natural oils
C) The degree of curl in fibre
D) Fibre’s moisture content

8. What is the ideal ‘‘material to liquor ratio’’ that is to be obtained for the efficient dyeing of coir fibres ?
A) 1 : 10
B) 1 : 20
C) 1 : 15
d) 1 : 5

9. length of coir yarn in meter per Kg is
A) Scorage
B) Runnage
C) fineness
d) Twist

10. match the following :
1. mfEm
2. Anugraha loom
3. Willowing machine
4. fibre drum
a. Combing
b. Defibering
c. Coir Geotextiles
d. Cleaning
A) 1 – b, 2 – c, 3 – d, 4 – a
B) 1 – a, 2 – b, 3 – c, 4 – d
C) 1 – d, 2 – b, 3 – a, 4 – c
d) 1 – c, 2 – a, 3 – b, 4 – d

11. The Botanical name of Coconut is
A) Cocos nucifera
B) Cocos lucifera
C) Cocos malifera
d) Cocos mangnifera

12. Which of these factors is not a major consideration when selecting a spinning method for coir yarn ?
A) Desired yarn properties
B) Type of coir fibre
C) Production speed and efficiency
D) Availability of skilled labour

13. Tenacity is a measure of yarn’s
A) Thickness
B) Colour consistency
C) Breaking strength
d) moisture content

14. during the drying process of coir yarn, scorching can occur. Which statement about scorch is most accurate ?
A) A slight scorch can improve yarn strength and durability
B) Scorch is a desirable aesthetic feature of some coir yarns
C) Scorch significantly weakens the yarn fibres and reduces quality
d) Scorch primarily affects colour uniformity of yarn

15. founders of Coir Industry in India
A) Henri Becquerel and Enrico fermi
B) James darragh and Henry Smail
C) James Chadwick and max Born
d) Robert Boyle and Rosalind franklin

16. The fibrous region of the coconut husk is known as
A) Endocarp
B) Epicarp
C) mesocarp
d) Exocarp

17. Which is the highest coconut producing State in India ?
A) Andhra Pradesh
B) Kerala
C) Tamil Nadu
d) Karnataka

18. dye Bath Assistant (dBH) is
A) Substance used to assist the transfer of dye from the dye bath to the fibre
B) Substance used for the preparation of acid dyes
C) Substance used to remove excess dye from the fibres
d) Substance used for the preparation of acid dyes

19. The process of joining together hanks of yarn of different lengths to get a continuous length is known as
A) Sorting
B) Splicing
C) Warping
d) Beaming

20. The type of basket matting in which two warps are raised and two lowered together and weft interlaces in pair is
A) Saloon matting
B) Panama matting
C) dot matting
d) Ribbed matting

21. Water holding capacity of coir pith is __________ times of its weight.
A) 1 – 3
B) 9 – 10
C) 6 – 8
d) 3 – 5

22. Calorific value of coir pith is
A) 4200 kcal per kg
B) 3975 kcal per kg
C) 4125 kcal per kg
d) 3865 kcal per kg

23. Which one of the following is not the properties of Coir Pith Organic manure (C-POm) ?
A) High moisture retention
B) Excellent medium for plant growth
C) Improves physical and biological condition of soil
d) Increases frequency of irrigation

24. What is the percentage of lignin content in retted coir pith ?
A) 28.5
B) 30
C) 26.40
d) 29

25. Which compound present in coir pith support the initial growth of fungus and act as co-substances for lignin degradation in the process of converting coir pith into valuable organic manure ?
A) Cellulose
B) lignin
C) Hemi cellulose
d) Pectin

26. What is the Indian Specification Code for Coir Pith ?
A) IS 17739 : 2022
B) IS 17734 : 2022
C) IS 15869 : 2020
d) IS 15871 : 2009

27. for the selection of coir pith to manufacture coco peat, the electrical conductivity of coir pith should be below
A) 1.5 ms/cm
B) 1 ms/cm
C) 0.5 ms/cm
d) 1.2 ms/cm

28. Number of days required for conversion of hillocks of coir pith into organic manure using perforated PVC pipes is
A) 30
B) 28
C) 21
d) 20

29. Chemical cleaning of fabric prior to dyeing and printing is in the general sense is
A) Bleaching
B) Softening
C) Washing
d) Colouring

30. Which one of the following is a universal bleaching agent and used extensively for bleaching of cellulosic materials ?
A) Sodium Silicate
B) Hydrogen Peroxide
C) Bleaching Powder
d) Soda

31. The colour and their respective dyes from plant are oldest dyes and generally referred as
A) Basic dyes
B) Natural dyes
C) direct dyes
d) Acid dyes

32. dyes obtained by heating aromatic organic compounds with sulphur and sodium or calcium sulphide are called
A) Sulphur dyes
B) Azoic dyes
C) Vat dyes
d) Natural dyes

33. Which one of the following dyes are not commonly used in coir industry ?
A) Basic dyes
B) Acid dyes
C) Vat dyes
d) direct dyes

34. Where the percent exhaustion of dye is low, the amount of the dye taken up by the material dyed in a particular dye bath is added to the dye bath and a second lot dyed. This is known as
A) dye Bath Assistant
B) Shade of a dyeing
C) Shade matching
d) Standing bath

35. fastness grade of dye from Turmeric is
A) 1
B) 2
C) 3
d) 4

36. In dyeing, material to liquor ratio is
A) Ratio of volume of the material to volume of the liquor
B) Ratio of mass of the material to mass of the liquor
C) Ratio of the weight of the material to the weight of the liquor
d) Ratio of the viscosity of the material to the viscosity of the liquor

37. Prescribed limit of BOD for effluents in wet processing of coir is
A) 25
B) 27
C) 29
d) 30

38. In stencil plate printing, the selection of number of stencil plates depends upon
A) Colour
B) material
C) Pattern
d) dyestuff

39. Which one of the following is Indian Standard for determination of colour fastness of textile materials to Rubbing ?
A) IS : 765 – 1979
B) IS : 766 – 1988
C) IS : 686 – 1985
d) IS : 2454 – 1985

40. The dyes belonging to the which reactive group has been used for the preparation of shades of coir yarn ?
A) Highly
B) medium
C) less
d) Substantive

41. Type of yarn used as binding chain in Carnatic mat
A) 5 Ply Jute
B) 3 Ply Jute
C) 2 Ply Jute
d) Sisal

42. What is the length of No. 2 size mats in inches ?
A) 27
B) 21
C) 30
d) 36

43. Which one in the given list is a frame mat ?
A) Rod mat
B) mesh mat
C) Creel mat
d) loop mat

44. Sinnet mat is also known as
A) Hollander mat
B) Chain mat
C) lovers knot mat
d) mesh mat

45. What is the drafting order of fibre mat ?
A) 2-1-1, 3-1-1
B) 1 4 3 2
C) 1 3 2 3
d) 1 3 1 2

46. Which one is a brush mat ?
A) Creel mat
B) mesh mat
C) Corridor mat
d) Chain mat

47. The process aimed to cut the top portion of pile structure of mat uniformly is called
A) Trimming
B) Shearing
C) Clipping
d) Stencilling

48. dutch mat is the other name for
A) Creel mat
B) Corridor mat
C) Carnatic mat
d) Rope mat

49. In a rod mat, the brush or pile is formed out of
A) Topping yarn
B) Tight warp
C) Slack warp
d) Weft

50. WC1 is the quality mark of
A) Chain mat
B) Corridor mat
C) Carnatic mat
d) mesh mat

51. Number of stencil plates required for a particular design on a mat depends upon
A) Number of colours in the design
B) length of mat
C) Thickness of the mat
d) None of the above

52. The woven mats are collected at the back side of the loom by operating
A) Iron ratchet wheel
B) Treadles
C) Slay
d) Wooden ratchet wheel

53. The chemical used to convert coir needle felts into Coir Polymer Composite Boards is
A) Phenol formaldehyde
B) Cellulose
C) Wax resin
d) Polyvinyl chloride

54. Coir needle felts are _________ fabric.
A) Woven
B) Non-woven
C) moulded
d) None of the above

55. ________ is used as a supports for creepers belonging to climber class plants.
A) Coco pole
B) Coir ply board
C) Coir matting
d) Coir pith

56. Name of the fungus which helps in Pith Composting.
A) Agaricus bisporous
B) Pleurotus sajar caju
C) Agaricus compostris
d) Agaricus

57. Which is the most preferred wood for making Brushes ?
A) Teak wood
B) mango tree
C) Coconut tree
d) Rose wood

58. The brush used for lavatory cleaning is
A) Scrubbing Brush
B) Banister Brush
C) Commode Brush
d) form Cleaning Brush

59. The machine used for leveling the top portion of the brush so as to have uniform bristle surface.
A) Top shearing machine
B) Jig Saw
C) Rotary Planer
d) lathe

60. What is the Pile height of Hockey Type Commode Brush ?
A) 2 inches
B) 1 inch
C) 1.25 inches
d) 1.5 inches

61. Coir liners used as garden pots are made from
A) Coir Geo-textiles
B) Coir Pith
C) Coir Needle felt
d) Coir Wood

62. The chemical used in bleaching of coir fibre is
A) Sulfuric Acid
B) Acetic Acid
C) Hydrogen Peroxide
d) Chlorine

63. Which one of the following is not the preparatory process of weaving of coir ?
A) Bleaching
B) Splicing
C) Spooling
d) Beaming

64. drafting order of 4 shaft twill weave
A) 1 3 2 4
B) 1 2 3 4
C) 131 424
d) None of these

65. Spot matting is also known as
A) Saloon matting
B) Panama matting
C) dot matting
d) Ribbed matting

66. What determines the width and density of the fabric in the loom ?
A) Size of chain beam
B) Reed
C) Tension beam
d) Heddle frame

67. Which one of the following is Indian Standard Specification for coir matting, mourzouks and carpets ?
A) IS : 15340 – 2003
B) IS : 12503 – 1988
C) IS : 11420 – 1985
d) IS : 898 – 1985

68. Which one of the following determines the width of the fabric woven in the loom ?
A) Heddle frame
B) Sley
C) Shuttle
d) Reed

69. dobby looms which are used in coir industry usually have
A) 10 – 12 shafts
B) 16 – 18 shafts
C) 12 – 16 shafts
d) 8 – 10 shafts

70. The process of bringing the inserted pick in the shed nearest to the last pick already inserted in the fabric is known as
A) Beating
B) Shedding
C) Picking
d) Warping

71. The loom in which each and every warp threads can be individually controlled according to the will and pleasure of the weaver as per the design is
A) Power loom
B) dobby loom
C) Jacquard loom
d) Semi-mechanized loom

72. Which one of the following is the standard size (cm) of rugs and mourzouks available in the industry ?
A) 75 × 45
B) 75 × 40
C) 70 × 45
d) 70 × 40

73. What is the percentage of porosity in coir fibre ?
A) 40
B) 45
C) 50
d) 55

74. Which type of coir fibre is comparatively deeper in colour, is more stiff and resistant and used mainly for the manufacture of brushes ?
A) White
B) yellow
C) Brown
d) dark

75. Which one of the following physical properties of coir fibre is not influenced for its spinning ?
A) fineness
B) length
C) Width
d) Stiffness

76. Which one of the following is not the drawback of natural fibres ?
A) High thermal stability
B) Varying quality
C) High degree of moisture absorption
d) low impact strength

77. Cotton fibre is extracted from
A) Stem
B) leaf
C) Bark
d) Seed

78. Which one of the following is much coarser than most of other natural fibres ?
A) Coir
B) Cotton
C) Jute
d) Sisal

79. Sisal is mainly cultivated in
A) China
B) India
C) Brazil
d) Sri lanka

80. Which fibre is used to make currency paper ?
A) Abaca
B) Hemp
C) Sisal
d) Banana

81. The coir geo-textiles are used for erosion control and stabilization of the following.
A) Soil erosion and water and filtering
B) Embankment and mine site reclamation
C) Ponds and canals
d) Embankment protection and seawall

82. The lignin content of coir fibre is around the following percentage
A) 45.84
B) 42.84
C) 46.48
d) 39.84

83. Which of the following IRC code books provides guidelines for the design and construction of roads using coir geo-textiles ?
A) 128-2021
B) 129-2020
C) 129-2022
d) 127-2022

84. What is the quality specification for Coir Geo-textiles with a weight of 900 g/m2 ?
A) H2m9
B) H2m6
C) H2m5
d) H2m4

85. The Coir Coco lawn can be made out of the following materials
A) Coir pith, coir fibre and lawn
B) Coir Geo-textiles, coir pith, coir needle felt and lawn
C) Coir fibre, Coir Geo-textiles, coir pith and lawn
d) None of the above

86. In a Pneumatic loom, which pedal is provided to cause a movement of the slay resulting in beating that is not manual, as in traditional handlooms ?
A) Second
B) Third
C) first
d) fourth

87. In which type of loom is the beating, shedding and winding done by power transmitted from a motor, while picking is done manually ?
A) fully Automatic loom
B) Semi-automatic loom
C) Pneumatic loom
d) Jacquard loom

88. Which loom could help in conserving trees, which are essential for maintaining ecology ?
A) dobby loom
B) metallic Handloom
C) Wooden Handloom
d) Jacquard loom

89. In a pneumatic loom, which one of the following replaces the treadles ?
A) Pedals
B) Shaft
C) lamp rods
d) Compressor

90. The fundamentals of weaving are the following
A) Warping, Splicing and Spooling
B) Beaming, Splicing and Spooling
C) Shedding, Picking and Beating
d) drafting, denting and Weaving

91. The first coir factory was established in the year
A) 1917
B) 1859
C) 1857
d) 1903

92. According to IS 9308 Part 4, which of the following tests is not mandatory for evaluating the quality of curled coir rope ?
A) Tensile strength test to determine breaking load
B) Twist count test to measure the number of twists per meter
C) Water absorption test to assess water retention capacity
d) Visual inspection for uniformity, colour and presence of defects

93. During decortication process of coir fiber for curled rope production, which factor most significantly impacts the final breaking strength of the rope ?
A) Speed of decorticating machine
B) Type of decorticating blade used
C) moisture content of the raw coir husk
d) Amount of dust removed during decortication

94. during coir needled felt preparation, what factor primarily determines the density of the final felt product ?
A) Type of needle used
B) Linear density of the individual coir fibres
C) Speed at which the needles penetrate the coir mat
d) Number of needle passes made over the coir layer

95. As per IS 11060, the nominal thickness of a moulded rubberized coir mattress in Grade I quality should be
A) less than 10 mm
B) 10 mm to 15 mm
C) 15 mm to 25 mm
d) more than 25 mm

96. The Indentation load deflection test is used to measure
A) Tensile strength of the coir fibre
B) Elasticity and resilience of the cushion
C) fire resistance properties
d) Adhesion between rubber and coir

97. during compounding of NR latex, the primary purpose of adding dispersing agent is to
A) Increase the viscosity of the latex
B) Prevent agglomeration of filler particles
C) Accelerate the vulcanization process
d) Improve the adhesion between latex and additives

98. As per IS 11060, the maximum moisture content permitted in moulded rubberized coir cushioning is
A) less than 5%
B) 5% to 10%
C) 10% to 15%
d) more than 15%

99. The process aimed to prevent the loss or gain heat by the insulated environment is known as
A) Thermal insulation
B) Thermal softening
C) Thermal pulping
d) None of the above

100. match the following :
1. Sulphur
2. Zinc Oxide
3. Antioxidants
4. filler
a. modify physical property
b. Vulcanizing agent
c. Cure activator
d. Impart age resisting property
A) 1 – c, 2 – a, 3 – b and 4 – d
B) 1 – b, 2 – c, 3 – d and 4 – a
C) 1 – c, 2 – b, 3 – a and 4 – d
d) 1 – d, 2 – a, 3 – c and 4 – b