Clothing Construction Processes: Stitches

11 Grade 10 Home Science questions on Clothing Construction Processes: Stitches, with worked marking schemes. 11 questions are available on this topic in full.

1. Question 1

   1 mark

   During a practical lesson, the teacher asks learners to tack the side seams of an apron using thread of a colour different from that of the fabric. Why is this recommended?

   A. The tacking blends with the decorative stitches on the apron

   B. The tacking is easy to see and remove after machining

   C. The fabric is prevented from fraying along the fitting line

   D. The tacking becomes strong enough to replace machine stitching

   (1 mark)

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2. Question 2

   4 marks

   During a practical lesson on working stitches in the Home Science room, learners use needles, pins and scissors and produce many fabric and thread clippings.

   (a) State two safety measures the learners should observe while working the stitches. (2 marks)

   (b) Outline two appropriate ways of managing the clippings produced. (2 marks)

   (4 marks)

   Marking scheme

   (a) Any two of the following, 1 mark each (2 marks): - keep needles and pins in a pin cushion or needle case when not in use, never in the mouth or on clothing - use a thimble to protect the finger when pushing the needle - cut threads with scissors, never with the teeth - pass scissors to another person handle first and keep them closed when not in use - work in good light and sit upright to avoid strain - count needles and pins at the end of the lesson and pick up any dropped ones - dispose of broken needles in a closed container (b) Any two of the following, 1 mark each (2 marks): - collect clippings in a bag or box as one works instead of dropping them on the floor - sort usable scraps and reuse them, e.g. for patchwork, appliqué, stuffing cushions or practice samples - put unusable clippings in the waste bin - give larger scraps for recycling or to people who can use them

3. Question 3

   1 mark

   Before starting to hand stitch a sample, Kiprono cuts a piece of thread to put through his needle. Which length of thread is most suitable, and why?

   A. About 90 cm, as it avoids frequent rethreading

   B. About 45 cm, as it is unlikely to tangle

   C. About 10 cm, as a short thread never knots

   D. About 150 cm, as it completes a whole seam

   (1 mark)

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4. Question 4

   4 marks

   Grade 10 learners are making plain cotton aprons to sell at their school's open day.

   (a) Outline two ways in which stitches can be used creatively to make the aprons more attractive. (2 marks)

   (b) State two factors to consider when choosing thread for the decorative stitching. (2 marks)

   (4 marks)

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5. Question 5

   1 mark

   Mueni wants to embroider a flower motif, with an outlined stem and filled-in petals, on the pocket of a child's dress. Which group consists only of permanent decorative stitches that she could use?

   A. Tacking, chain and stem stitches

   B. Overcasting, stem and chain stitches

   C. Chain, stem and satin stitches

   D. Oversewing, satin and stem stitches

   (1 mark)

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6. Question 6

   4 marks

   Njeri is finishing the hem of a thick woollen school skirt using herringbone stitch. Describe how she would work the stitch. (4 marks)

   (4 marks)

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7. Question 7

   4 marks

   Wafula is making a cotton apron. Name a suitable hand stitch for each of the following tasks.

   (a) Marking the centre front line on a single layer of fabric. (1 mark)

   (b) Holding a turned-up hem in place before it is machined. (1 mark)

   (c) Neatening the raw edges of the side seam turnings. (1 mark)

   (d) Securing the folded edge of a facing by hand so that the stitches hardly show on the right side. (1 mark)

   (4 marks)

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8. Question 8

   4 marks

   During a practical lesson, Otieno is asked to work a row of running stitch on a cotton sample.

   (a) Describe how he should work the running stitch. (3 marks)

   (b) State one use of running stitch in clothing construction. (1 mark)

   (4 marks)

   Marking scheme

   (a) Any three of the following, 1 mark each (3 marks): - Thread the needle with a suitable thread (about 45 cm) matching the fabric and start securely with one or two small backstitches (or a small knot) on the wrong side - Work from right to left (for a right-handed learner) - Weave the needle in and out of the fabric, picking up several small stitches on the needle at a time before pulling the thread through - Keep the stitches and the spaces between them small (about 2 to 3 mm) and equal in length - Keep the stitches in a straight line / along the marked line without pulling the thread too tight, to avoid puckering - Finish off securely with two or three backstitches on the wrong side and cut the thread with scissors (b) Any one, 1 mark: - gathering fullness, e.g. at a waistline or sleeve head - joining seams that do not take much strain - making tucks - quilting - decorating (e.g. as an outline in embroidery)

9. Question 9

   4 marks

   A tailor in Nakuru tells Grade 10 learners on a school visit that "the way stitches are worked decides how long a garment lasts". Explain two ways in which the working of stitches affects the quality and durability of a garment. (4 marks)

   (4 marks)

   Marking scheme

   Any two of the following, 2 marks each (1 mark for the point, 1 mark for the explanation) (4 marks): - Size and evenness of stitches: even, suitably sized stitches give a neat appearance and spread strain equally; long or uneven stitches catch on objects and break easily - Tension: stitches worked with the correct tension lie flat; stitches pulled too tight cause puckering and may snap, while loose stitches look untidy and come undone - Starting and finishing: stitches fastened securely at the start and end do not unravel during wear and laundering - Choice of stitch for the purpose: a strong stitch such as backstitch or machine stitch used where there is strain stops seams from bursting; a weak stitch in such places gives way - Neatening stitches on raw edges: overcasting or loop stitch prevents fraying, so seams do not pull out and the garment lasts longer - Suitable thread and needle for the fabric: correct thickness and strength of thread prevents breaking during wear and washing and avoids damaging the fabric

10. Question 10

    4 marks

    Learners in a Grade 10 class were sorting their stitch samples into two groups: temporary stitches and permanent stitches.

    (a) Distinguish between temporary stitches and permanent stitches. (2 marks)

    (b) Give one example of a temporary stitch and one example of a permanent stitch. (2 marks)

    (4 marks)

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11. Question 11

    1 mark

    Wanjiru is cutting out a dress from two layers of cotton fabric folded together. She needs to transfer the dart positions from the paper pattern so that identical markings show on both layers of fabric. Which stitch should she use?

    A. Uneven tacking

    B. Diagonal tacking

    C. Tailor's tacks

    D. Running stitch

    (1 mark)

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