SC7181
WASSCE SC 2022 DYEING AND BLEACHING 1 Objective Test 45 Minutes
Name: Index Number:
THE WEST AFRICAN EXAMINATIONS COUNCIL West African Senior School Certificate Examination (WASSCE) for School Candidates, 2022
SC 2022 DYEING AND BLEACHING 1 45 Minutes Objective Test [45 marks]
Do not open this booklet until you are told to do so. While you are waiting, write your name and index number in the spaces provided at the top right-hand comer of this booklet and thereafter, read the following instructions carefully.
1. Use HB pencil throughout.
2. If you have got a blank answer sheet, complete its top section as follows.
(a) In the space marked Name, write in capital letters your surname followed by your other names (b) In the spaces marked Examination, Year, Subject and Paper, write ‘WASSCE (SC)’, ‘2022’ ‘DYEING AND BLEACHING and ‘1’ respectively.
(c) In the box marked Index Number, write your index number vertically in the spaces on the left-hand 112side. There are numbered spaces in line with each digit. Shade carefully the space with the same number as each digit.
(d) In the box marked Paper Code, write the digits 402112 in the spaces on the left-hand side. Shade the corresponding numbered spaces in the same way as for your index number.
(e) In the box marked Sex, shade the space marked M if you are male, or F if you are female
3. If you have got a pre-printed answer sheet, check that the details are correctly printed, as described in 2 above. In the boxes marked Index Number, Paper Code and Sex, reshade each of the shaded spaces.
4. An example is given below. This is for a male candidate whose name is Chinedu Oladapo DIKKO, whose index number is 4251102068 and who is offering General Mathematics/Mathematics (Core) 1.
1. Which of the following surface is best to preserve dyes?
A. Dry B. Moist C. Watery D. Wet
2. The safety tool used for stitching in tie-dye is A. nose mask. B. needle. C. thimble. D. thumb pins.
3. Which of the following represents a repeat pattern? A Glass B. Mirror C. Plastic D. Aluminium
4 Which of the following is a natural dye?
A. Azoic B. Vat C. Basic D. Indigo
5. The protective covering against stain during dyeing is A jacket B. overall. C. suit D. waistcoat.
6 A dye will lose its intensity when it is A. kept in a container. B. applied sparingly. C mixed with hot water D. mixed with excess water
7 The strength of a colour refers to its A. rhythm B. hue C tone D. intensity.
8. A band of colours is referred to os A. texture. B crackles. C spectrum D. sfumato
9 Labelling of chemicals is important for A. advertisement B. decoration. C sales. D. identification
10. The best way to keep a dyed fabric durable is to
A. wash, iron and dry under shade
B dry under shade, wall and iron
C. iron, dry under shade and wash
D. wash, dry under shade and iron
11. Abeokuta and Kano are popular centres for
A. pit dyeing and printing.
B. printing and batiking.
C. bleaching and tie-dyeing P. starch resist and pit dyeing.
12. Which of the following Isa material for starch resist method?
A. Wax B. Potash
C. Flour
D. Salt
13 Cleaning of mesh surface at intervals during printing is necessary to
A produce glossy effects
B extend time of production.
C. avoid smearing of ink.
D. create motifs.
14. Which of the following order is correct in batiking?
A. Iron and dye B. Wax and dye C. Package and Iron D. Wax and package
15. The method of dying fabric include
A. Pleating and stiching
B. Plaiting and barbing C. Knotting and Planning
D. stitching and ironing
16. Running occurs in fabric when it is
A. ironed B. Lacquered C. Washed
D. Dried
17. Discharge printing is done by
A. printing of mordant in the desired pattern
B. using colourant to fix colour on printed fabric
C. Printing wax on fabric
D. using a bleaching agent to print on dyed fabric
18. Which of the following is used in tie-dye?
A. Roler
B. Foam C. Twise
D. Wax
19. Which of the following is true of mesh paper?
A. Boil water, mix starch and cook
B. Mix starch, cook and boil water
C. Cook starch, boil water and stir
D. Mix starch, stir and boil water
[60 marks]
Answer four questions in all All questions carry equal marks
1 (a) What is labelling of chemicals in dyeing?
(b) (i) Mention three heat sources in dyeing.
(ii) State one function each of two heat sources mentioned in 1(b) (i). (c) Highlight three importance of labelling chemicals in fabric decoration.
2 (a) Explain storage in dyeing process.
(b) Stale three ways of storing dye and chemicals. (c) Mention three benefits of storing dyes and chemicals. 3. 4. 5.
6. (a) Explain batik.
(b) List any eight tools for wax resist production. (c) Identify any four problems associated with batik production.