Rajasthan Public Service Commission 2016
Paper Cloth Coloring And PrintingI
Ques: 150
Time: 3 Hours

1. Jute and flax belongs to the family of

Hair fibres

Bast fibres

Leaf fibres

Fruit fibres

2. Fibrous material of wool is

Keratin

Fibroin

Lignin

Cellulose

3.Removal of oil and fat from cotton fabric by .

Esterification

Emulsification

Soapinification

Etherification

4. Cropping process is done for

Cutting and removing of projecting fibers

Burning and removing of projecting fibers

Brushing and removing of dust and dirt

Only brushing of projecting fibers

5.Alkali resistance is highest in

Wool

Cotton

Silk

Jute

6. Removal of sericin from silk fibers is called

Degumming

Desizing

Scouring

Bleaching

7. Optimum pH for bleaching of cotton with hydrogen peroxide is

7

10

8

6

8. Whiteness index is related to

Bleaching

Desizing

Mercerising

Scouring

9. Active oxidising species of hydrogen peroxide bleaching is

Hydrogen ion

Hydroxyl ion

Perhydroxyl ion

Water

10.Which one chemical is a universal bleaching agent

NaOCl

NaClO2

H2O2

Na2SO3

11. Which one chemical is used for mercerisation of cotton fabric

KOH

NaOH

Na2CO3

Na2S2O4

12.Which one chemical is used with caustic soda for scouring of colour goods

Resist salt L

Hydro

Rangolite C

Tinofix

13. The most suitable pH range for enzyme desizing is

6.5 to 7.5

9.0 to 10.0

3.0 to 4.0

10.0 to 11.0

14. The suitable temperature for calcium hypochlorite bleaching is

Room temperature(20-25 degC)

Boiling temperature

50 degC

70degC

15.Retting process is related to

Viscose rayon

Wool

Silk

Jute

16.The object of carbonisation of wool is

Removal of vegetable matter

Removal of fat

Removal of suints

Removal of mineral matter

17. Lumen is the nutrient transportation tube for which of the following fiber.

Cotton

Wool

Silk

Nylon

18.The process of removal of starch from textile material is called as

Desizing

Bleaching

Heat setting

Scouring

19. Name the process that is used to remove colouring matter present in the textile material.

Heat setting

Scouring

Cropping

Bleaching

20. Which of the following process is used to achieve dimensional stability of textile material.

Scouring

Shearing

Heat setting

Bleaching

21. In textile processing carbon tetra chloride is used as

Dye

Solvent

Emulsifier

Bleaching agent

22. The enzyme " Amylase " is used in which stage of textile processing .

Desizing

Scouring

Dyeing

Bleaching

23. poly alpha-Glucopyranose is chemical name of-


Starch

Enzyme

Bleach

Dye

24. The term COD stands for

Chemically oxidised dye

Chemical oxygen demand

Carbon oxygen demand

Chloro oxygen demand

25. Which of the following is an oxidative method of starch desizing.

Rot desizing

Acid desizing

Enzyme desizing

Chlorine desizing

26. Sodium chlorite require acidic condition for which of the following process

Dyeing

Desizing

Bleaching

Scouring

27. Which of the following surfactant have quaternary ammonium salt as major constituent?

Anoinic surfactant

Cationic surfactant

Non Ionic surfactant

Amphoteric surfactant

28.Water hardness is mainly due to the presence of one of the following component.

Carbon

Iron

Sodium

Calcium

29.Which of the following is common name of sodium salts of fatty acid.

Soap

Detergents

Dyes

Urea

30. Name the process given to cotton fabric to increase the lusture and absorbing capacity.

Scouring

Desizing

Bleaching

Mercerization

31. Stenter is used for

Stretching the fabric

Chemical finishing

Burning of loose fibres

Desizing

32. Which is the main constitent of the flax fiber

Cellulose

Pectine

Lignin

Sericin

33.Which of the following chemical is a reducive bleaching agent

Hydrogen Peroxide

Sodium Perborate

Sodium Hypochlorite

Sulphur dioxide


34. The chemical name of bleaching powder is

Sodium Chloride

Calium Hypochlorite

Sodium Hypochlorite

Sodium Bisulphite

35. which one of the following is the most conventional and widely used stabilizer in H2O2 bleaching?

Phosphonic acid

Sodium nitrate

Sodium Chloride

Sodium Silicate

36. Which of the following forms the outer layer as protective coating to silk fiber

Lignin

Keratin

Fibroin

Sericin

37. The rating for light fastness is

15

16

14

18

38. The formation of small knots of fibers on the surface of fabric is known as

Pilling

Creasing

Pressing

Calendering

39. Calgon is

Levelling agent

Retarding agent

Exhausting agent

Sequestering agent

40. Which of the following fabric is scoured in rope form in a machine called " Dolly "

Silk

Cotton

Nylon

Wool

41. Choose correct sequence of bleaching process on grey cotton cloth.

Singeing Desizing Scouring Bleaching Souring Washing

Singeing Washing Desizing Scouring Washing Bleaching

Washing Singeing Scouring Desizing Washing Bleaching

Singeing Scouring Washing Desizing Washing Bleaching

42. Which chemical looks similar to salt or sugar but would be Poison

Oleic Acid

Oxalic Acid

Folic Acid

Tartaric Acid

43. Hydrogen Peroxide solution work more faster when mix it in

1. Washing Soda
2. Acid
3. Amonia Select

the correct answer using the codes given below

3

2

3

2 only

44. Which of the following is used to test washing fastness.

Sodium hypochloride

Ferrous Sulphate

Potash

Sodium Carbonate Non ionic detergent


45. Rubbing or Abrasion is called

Crocking

Fading

Bleeding

Staining

46. Fastness of light is tested by

Barometer

Xenon Lamp

Crock meter

Grey Scale

47. Sodium Carbonate is used for

Removing impurities of cloth

Softening of hard water

Solubility of dye

Dyeing of polyester cloth

48. Natural cementing material is present in linen

Fibrin

Pectin

Suberin

Lignin

49.The object of Singeing is

Burning of projecting fibers

Cutting of projecting fibers

Brushing of projecting fibers

Pilling of fibers

50. Thermal stability to enzyme desize solution is provided by

1)CaCl2

2)NaCl

3)ZnCl2

4)MgCl2

51.Reactive dyes are used for dyeing of

Cellulosic and protein fiber

Polyester fiber

Nylon fibre

Acrylic fibre

52. Basic dyes are generally used for dyeing of

Nylon

Acrylic

Polyster

Cotton

53. Acid dyes are generally used for dyeing of

Cotton

Jute

Sisal

Wool

54. Dyes suitable for dyeing of nylon is

Acid dyes

Vat dyes

Direct dyes

Azoic colour

55. Polyester fibre is dyed by

Natural dyes

Basic dyes

Disperse dyes

Sulphur dyes

56.Indigosol is solubilised dyes from the following class

Pigment colour

Reactive dyes

Vat dyes

Disperse dyes

57.Working principle of jet dyeing machine is based

High temperature

High pressure

High temperature and high pressure

Boiling temperature and atmospheric pressure

58. Vatting process is carried out by

Sodium sulphide and soda ash

Sodium hydrosulphite and caustic soda

Sodium sulphoxylate formaldehyde

Sodium sulphide and sodium bicarbonate

59.Direct dyes are also known as

Anionic dyes

Cationic dyes

Nonionic dyes

None

60. Role of glauber salt in the dyeing of acid dyes

Exhausting agent

Levelling agent

Dye fixing agent

Reducing Agent

61. Which dyes can be selected to get all round fastness properties

Pigment colour

Reactive dyes

Vat dyes

Basic dyes

62. Azoic colours dyed fabric have poor fastness towards

Washing

Light

Rubbing

Perspiration

63. Naphthol is soluble in

Caustic soda solution

Sodium carbonate solution

Sodium bicarbonate solution

Hot water

64. Which one machine is suitable for dyeing of polyester in the rope form

Jigger

Winch

Beam dyeing

Jet dyeing

65. 2 1 metal complex dyes consist of

2 dyes molecules associated with 1 chromium atom

2 dyes molecules associated with 2 chromium atoms

1 dye molecule associated with 2 chromium atoms

1 dye molecule associated with 1 chromium atom

66. which dyes chemically react with fibre

Acid dyes

Vat dyes

Sulphur dyes

Reactive dyes

67. The most suitable pH range for fixation of reactive dyes

10-10.8

11-12

8.5-9.5

6.5-7.5

68. In context of Jet dyeing machine which statement is correct from the following

Dye Liquor stationary and fabric move

Dye Liquor moving and fabric stationary

Both fabric and Liquor moving

Both are stationary

69. Sulphur tendering is due to the formation of .

HCl

H2SO4

HNO3

CH3COOH

70. Colour of soluble vat dyes is developed by treating the fabric with

Sodium nitrite and sulphuric acid solution

Hydrogen peroxide solution

Sodium perborate solution

Soda ash solution

71. Fixation of reactive dyes on cotton fibre by the use of .

Sodium acetate

Sodium nitrate

Sodium carbonate

Sodium sulphate

72. Washing fastness of direct dyed material is improved by the use of .

Common salt

Glauber salt

Hydro

Cationic dyefixing agent

73. Which of the following dye was first devised in the colouration of acetate fibre

Vat

Azo

Sulphur

Disperse

74. The vat dyes falls into how many chemical classes

Three

Four

Five

Six

75.Batch dyeing is also known as

Jig dyeing

Winch dyeing

Beck dyeing

Exhaust dyeing

76. The coloured portion of the dye is known as

Auxochrome

Chromosome

Chromophore

Monochrome

77. Congo red is a

Direct dye

Vat dye

Reactive dye

Disperse dye

78. Alizarin Blue is

An anthraquinone based dye

A Nitro dye

An azo dye

Pthlocynaine dye

79. Which of the dye fibre interaction imparts good washing fastness in reactive dyeing?

Hydrogen bonding

Covalent bonding

Ionic bonding

Oxidative bonding

80.For dyeing to delicate fabrics which of the following machine is used.

Jiggers

Winch

Calendering

JT 10

81. Reducing agent used in sulphur dyeing is

Sodium Perborate

Calacium Metaphospate

Sodium Sulphide

Sodium Phosphate

82. The function of carrier in Polyster dyeing is to act as

Retarding agent

Reducing agent

Fixing agent

Swelling agent

83. The process of over dyeing a dyed textile material is called

Topping

Spotting

Tanning

Reverse dyeing

84. Moisture regain of Polyester is

0.4%

1.4%

4.1%



85. Which of the following dyes are also known as Cationic dyes

Acid dyes

Reactive dyes

Direct dyes

Basic dyes

86. In water, cellulosic fibers acquire

Negative charge

Positive charge

Neutral charge

Bipolar charge

87. Vat dyes are

Soluble in hot water

Insoluble in water

Partially soluble in water

Soluble in cold water

88. Which of the following process consists of adding colour to spinning solution

Dope dyeing

Stock dyeing

Fibre dyeing

Package dyeing

89. A wool finishing process used to set wool fabrics is

Texturing

Singeing

Bleaching

Crabbing

90.Which dye is mainly used for Denim

Reactive

Indigo

Rapid fast

Azoic

91.Which one of dye not consider, for dyeing of cellulose fiber without mordanting

Direct dye

Sulphur dye

Basic dye

Vat dye

92. Which of the following dye is also called as substantive dye

Naphthol

Direct

Acid

Mordant

93. Natural Cochineal dye is obtained from

Plant.

Roots of tree.

Insect

Fish

94. During dyeing, due to which machine Tailing defect is produce

Jet dyeing machine

Jigger dyeing machine

Winch dyeing machine

Padding dyeing machine

95. Bronzing defect is over come by

Sodium Perborate

Sodium hydroxide

Sodium Sulphate

Sodium Sulphide

96. Wooden tanks used for dyeing of Indigo are called

Container

Beaker

Vat

Vessel

97. Which cloth can not be dyed with Procian M

Synthetic

Cotton

Wool

Silk

98. The substantivity of basic cationic dye is more towards which fiber

Acrylic fiber

Protein fiber

Cellulose fiber

Synthetic fiber

99. At what temperature synthetic fibers are dyed in jet dyeing machine

130 degC to 210 degC

110 degC to 130 degC

135 degC to 140 degC

120 degC to 135 degC


100. By which dye Khakhi colour is obtained?

Sulphur dye

Acid dye

Azoic dye

Vat dye

101. Which is correct sequence of method of vat dyeing

Vatting dyeing oxidation soaping

Soaping vatting dyeing oxidation

Oxidation vatting dyeing soaping

Dyeing vatting oxidation soaping

102.Which chemical is used as a mordant for basic dye in cotton

Dilute Acitic acid

Tannic acid Tartar emetic

Tanninol W.L.

Tanninol W.R.

103. Which dye is also known as "Ice" colour

Sulphur

Direct

Azoic

Vat

104. 'Sublimative dye is?

Direct dye

Sulphur dye

Disperse dyes

Reactive dyes

105. In the printing of direct dyes, glycerin is used as .

Hygroscopic agent

Wetting agent

Dye fixing agent

Reducing Agent

106. The most suitable thickner for printing of reactive dyes is

Guar gum

Gum arabic

Gum Tragacanth

Sodium alginate

107.Common hygroscopic agent generally used in the printing paste is .

Urea

Glycerine

Glycine A

Solution salt B

108. Which one chemical is suitable for discharge printing on cotton

Rangoline

Safoline

Tangoline

Rangolite

109. Batik printing is an example of

Resist style printing

Discharge style printing

Direct style printing

Flock style printing

110. In the reactive dyes printing, resist salt L is used as .

Mild reducing agent

Mild oxidising agent

Hygroscopic agent

Acid liberating agent

111. Azoic colour cannot be developed by .

Base printing method

Naphtholated printing method

Naphthol nitrite printing method

Steaming method

112. Vat dyes is printed by .

Potash Rangolite method

Nitrite method

Chromate method

Chlorate method

113. Thickner used in the vat dyes printing is .

Strach Tragacanth/British gum

Guar gum

Gum arabic

Strach

114.In the ageing process printed fabric is subjected to

Steam at atmospheric pressure

Super heated steam

Hot air

Curing at high temperature

115. White discharge printing on azoic colour is obtained by the use of .

Rangolite and Zinc oxide

Rangoline

Citric acid and tin salt

Sodium nitrite

116.Zinc sulphoxylate formaldehyde is used to obtain discharge prints on .

Silk fabric

Cotton fabric

Wool fabric

Synthetic fabric

117.Dyes does not suitable for printing of wool is

Acid dyes

Chrome dyes

Reactive dyes

Vat dyes

118. Mordant dyes is fixed on the wool, by the addition of chemical in the printing paste is .

Chromium acetate

Oxalic acid

Tartaric acid

Acetic acid

119. Which one dyes or colour is suitable for dyeing and printing of all types of fibers except wool

Pigment colours

Disperse dyes

Vat dyes

Acid dyes

120. Which one of the following chemical responsible for fixation of pigment colour on the fabric

Fixer CCL

Binder

Diammonium phosphate

Dimethylol urea

121. Which one of the following thickner is suitable for pigment printing

Dextrine

Oilinwater emulsion thickner

Meypro gum

Gum Indalaca

122.Which one of the following condition is suitable for transfer printing on polyster fabric

180-220degC for 15-30 seconds

110-120degC for 15-30 seconds

130-140degC for 15-30 seconds

150degC for 15-30 seconds

123. Which one of the following method is used to fix the pigment colour on the fabric?

Pad dry steam

Pad dry ageing

Pad dry cure

Flash ageing

124. Which one of the following chemical is suitable to adust pH for disperse dyes printing

HCl

CH3COOH

H2SO4

Citric acid

125. Which one of the following finish is related to cotton fabric

Moth proof finish

Antistatic finish

Soil release finish

Organdie finish

126. Which one of the following is an example of Chemical finish

Soil release finish

Decatising finish

Raising finish

Sanforsing finish

127. Which one of the following chemical is used in parchmentising of Cotton fabric

Sulphuric acid

Phenol

Formic acid

Amino silicon

128. Which one of the following machine is used for felting of wool

Dolly washing machine

Winch machine

Rotary milling machine

J box

129. Which one of the following chemical is used for getting flame retardant finish

EDTA

DDT

THPC

H Acid

130. The object of beetling is to impart .

High degree of Lusture on linen

High degree of Lusture on cotton

High degree of Lusture on wool

High degree of Lusture on polyster

131.The treatment of wool material with sulphuric acid is known as

Decating

Crabbing

Sanforization

Carbonization

132. " London Shrunk " is used for which of the following fabric

Fine Cotton

Fine Silk

Fine Linen

Fine Worsteds

133. Which of the following process imparts permanent anti shrink finish in wool fibre?

Calendering

Napping

Decatizing

Warping

134.Which of the following is permanent finish.

Pressing

Shower proofing

Biopolishing

Flame resistance

135. Organo phosphorus compounds are used to make which of the following fibers.

Low pilling fiber

High density fibers

Flame resistant fibers

Low Melt Nylon fiber

136. Polyester fiber dissolves in

100% sulphuric acid

Acetic acid

Meta cresol

100% Hydrochloric acid

137. DMDHEU is a popular

Water proofing agent

Soil releasing agent

Anti creasing agent

Moth proofing agent

138. The dried perspiration content in wool is known as

Lint

Burrs

Lignin

Suint

139. The percentage increase in the weight of dry fabric after padding is called

Expression percentage

Affinity

Substantivity

Exhaustion

140. Which of the following mark indicates that a fabric has been treated so that it will not shrink?

Back filled

Resin finished

Kier boiled

Sanforized

141. The degree of mercerization can be accesed by using

Copper number

Washing fastness

Barium activity number

BOD value

142. Name the fiber that contains both nitrogen and sulphur

Polyester

Wool

Nylon 6

Kevlar

143. Drying cylinders of sizing is coated with which of the following

Chromium

Synthetic rubber

Copper

Teflon

144. Preptone is commercial name of which of the following chemical

Sodium Bromite

Sodium Oxide

Sodium Perborate

Sodium Chloride

145. The dyebath pH required for super milling acid dye is

1-2

2.5-3.5

4-4.5

6-7

146. Factors that influence colour fastness is

1. Chemical structure of the fibre
2. Chemical structure of dye or pigment
3. Variation of methods and technique of colour application and printing Select the correct answer

using the codes given below:

1 only

2 only

1 and 3

2 and 3

147.Match the following Chemicals Main functions

A. Glauber salt Solubilizing agent
B. Potassium bichromate 2. Reducing agent
C. Rangolit C 3. Dyeing assistant
D. Urea 4. Oxidizing agent

Select the correct answer using the code given below

D-4

D-2

D-4

D-1

148.Which of the following linkage is the most important part of chemical structure of wool.

Sulphur

Nitrogen

Hydrogen

Oxygen

149. Which of the following has no affinity for cotton

Direct dyes

Reactive dyes

Indigo dyes

Basic dyes

150. Chrome mordant dyes are a type of

Acid dyes

Direct dyes

Vat dyes

Reactive dyes