30 Questions
Which characteristic is used to determine the face of a fabric if the lustre is the same on both sides?
Clarity of design
How can warp and weft threads be identified if selvedges are present in the fabric sample?
By the threads parallel and perpendicular to the selvedges
What is the general relationship between the number of warp and weft threads in a fabric?
Warp threads are more dense than weft threads
If both the warp and weft threads have the same crimp, how can they be distinguished?
By the thread count
What is the main characteristic used to identify warp threads in a fabric that is not in the loom state?
Size
If a fabric has the same lustre, clarity of design, and crimp on both sides, how can the face be determined?
Any side can be considered the face
What is the relationship between the numerator and denominator of a twill fraction?
The numerator is equal to the number of warp overlaps and the denominator is equal to the number of weft overlaps.
What is the sum of the numerator and denominator of a 3/1 twill fraction?
4
What factor determines the firmness of a twill weave?
The number of intersections per unit area.
What is the defining characteristic of a balanced twill weave?
The numerator and denominator of the fraction are equal.
What is the defining characteristic of an irregular cross twill weave?
The warp end overlaps and underlaps a different number of picks.
What type of twill weave has warp threads that are more prominent than the weft threads?
Warp faced twill
What is the primary factor used to distinguish between warp and weft threads?
The twist direction
If the twist direction of both warp and weft threads is the same, what factor is considered next?
Thread fold
How are weft threads typically used in fabric construction?
Singles
In the fabric analysis procedure, how should the fabric sample be placed on the table?
Weft threads parallel to x-axis, warp threads parallel to y-axis
What is the term used to describe the number of warp threads per inch in a fabric?
Ends per inch
How can the thread count of warp and weft threads be determined, according to the text?
By fraying the fabric sample
Which of the following statements about plain weave fabric is true?
Plain weave fabric is typically used for sheer fabrics, blouses, and dresses.
What is the main distinguishing feature of twill weave fabrics?
The presence of pronounced diagonal lines running across the fabric's width.
In a twill weave, what is the minimum requirement for the warp ends?
Each warp end must float over two weft picks and under one weft pick.
What is the angle of the diagonal lines in a regular twill weave?
45°
Which of the following statements about twill weaves is true?
Twill weaves can vary in angle from a low slope to a very steep slope.
How are twill weaves expressed or represented?
Using a fraction.
What is represented by a cross or shaded area on the design paper?
Where the warp is over the weft
What should be avoided when taking thread density measurements?
Taking measurements within 3 to 4 inches of the selvedge
How should threads be frayed off a fabric sample?
By using common pins to displace and fray the threads
What should be done if the thread density in warp or weft direction is less than 20?
Count the threads in a larger area and find the mean threads per inch
How should the crimp of the yarn be measured?
By stretching the threads only slightly to remove visible crimp
What is the recommended way to take cloth sett measurements?
Take measurements at multiple positions and find the mean value
Learn about the procedure to determine the face of a fabric during fabric analysis. This involves identifying the top side of the fabric based on factors like luster and clarity of design.
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