Sewing machine faults, causes and remedies - JSS3 Home economics Past Questions and Answers - page 1
Give a sewing machine fault, cause and remedy.
Faults
Upper thread breaking
Causes
Machine not properly threaded, needle bent or blunt.
Remedies
i. Thread machine properly.
ii. Check the machine needle and change it if bent or blunt
What is fullness?
Fullness in clothing construction is defined as the provision of extra allowance in the garment. This fullness can be created on controlled using darts, tucks, gutter and pleats.
Mention a type of fullness.
1. Darts: They are tapered folds of fabric and they are stitches on the wrong side of a good.
State 3 uses of fullness.
1. They control fullness.
2. They turn fabric in shapes to fit to human figure.
3. They help to give good fitting and shape to the finished garment.
Define a tuck.
They are special stitched folds made in garments. The fold is formed on the right side of the garment.
What could be the cause if the sewing machine needle breaks frequently?
incorrect needle size
proper threading
correct stitch length
proper bobbin tension
If the sewing machine produces uneven stitches, what might be the possible cause?
incorrect threading
proper needle size
correct tension settings
proper pressure foot pressure
What could be the cause if the sewing machine makes loud noises while operating?
proper threading
correct needle size
lack of lubrication
correct stitch length
If the sewing machine skips stitches, what is a possible remedy?
increase the stitch length
decrease the stitch length
adjust the presser foot pressure
replace the needle with the correct size
What might be the cause if the sewing machine thread keeps breaking?
incorrect thread tension
proper needle size
correct threading
proper bobbin tension