In weft knitting, which direction does yarn generally follow as it forms successive loops?
A Across the fabric width
B Along the fabric length
C Through the fabric thickness
D Diagonally across the fabric
Answer: A. Across the fabric width. Weft knitting feeds yarn across the width to form a course. In warp knitting, yarns generally run along the fabric length.
Name the lengthwise column of knitted loops.
A Course
B Wale
C Selvage
D Pick
Answer: B. Wale. A wale is a column of loops running in the lengthwise direction of knitted fabric.
In knitted fabric, what is a crosswise row of loops called?
A End
B Wale
C Course
D Selvage
Answer: C. Course. A course is a row of loops that extends across the fabric width.
Why does a knitted stitch hold together?
A Intermeshed yarn loops
B Crossed warp ends
C Bonded fibre layers
D Twisted yarn plies
Answer: A. Intermeshed yarn loops. Each stitch is formed by drawing a new loop through an earlier loop, creating an intermeshed structure.
During loop formation, what is drawn through the old loop?
A New yarn loop
B Warp sheet
C Finished fabric
D Loose fibre web
Answer: A. New yarn loop. The needle draws a new yarn loop through the old loop to form the next stitch.
Where does a latch needle retain yarn for loop formation?
A Sinker
B Stem
C Butt
D Hook
Answer: D. Hook. The hook captures and holds the yarn as the needle forms a new loop.
What closes over the hook on a latch needle?
A Guide bar
B Latch
C Cam
D Butt
Answer: B. Latch. The latch swings over the hook and helps the old loop slide over it.
How do sinkers mainly assist weft knitting?
A Fabric hold-down
B Yarn package winding
C Warp beam tension
D Needle gauge control
Answer: A. Fabric hold-down. Sinkers help hold down the fabric and support loop formation as needles move.
In machine specifications, how is knitting gauge commonly stated?
A Wales per course
B Feeders per inch
C Needles per inch
D Courses per feeder
Answer: C. Needles per inch. Machine gauge commonly expresses the number of needles per inch.
Where are needles arranged on a circular knitting machine?
A Flat warp beam
B Rotating yarn cone
C Circular needle bed
D Linear loom reed
Answer: C. Circular needle bed. A circular knitting machine arranges needles around a cylinder or dial to knit tubular fabric.
What does course density count?
A Yarns per wale
B Wales per course
C Courses per length
D Needles per feeder
Answer: C. Courses per length. Course density is the number of courses within a unit of fabric length.
Wales per inch express which fabric measure?
A Wale density
B Loop diameter
C Course length
D Yarn count
Answer: A. Wale density. Wales per inch measure wale density across a specified fabric width.
Ordinary single jersey is produced on how many needle beds?
A One warp beam
B Two opposed beds
C Four guide bars
D One needle bed
Answer: D. One needle bed. Ordinary single jersey is knitted on one needle bed.
For rib knitting, needles work on which arrangement?
A Two warp beams
B One guide bar
C Both needle beds
D One needle bed
Answer: C. Both needle beds. Rib structures use needles from two opposed beds, commonly in alternating arrangement.
Identify the structure with alternating face and reverse wales.
A Warp satin
B Plain weave
C Rib knit
D Single jersey
Answer: C. Rib knit. Rib knitting alternates face and reverse loops in adjacent wales.
What does loop length measure in a knitted stitch?
A Needles per feeder
B Courses per inch
C Fabric width per wale
D Yarn per stitch
Answer: D. Yarn per stitch. Loop length is the length of yarn used to form an individual knitted loop.
If loop length decreases, what usually happens to fabric density?
A It stays exactly fixed
B It generally increases
C It generally decreases
D It always becomes zero
Answer: B. It generally increases. With other settings held constant, shorter loops generally create a tighter, denser fabric.
Where does a yarn feeder deliver yarn?
A To the fabric dryer
B To knitting needles
C To the take-up roll
D To the warp beam
Answer: B. To knitting needles. The yarn feeder presents yarn to the needles at the knitting zone.
How are yarns supplied in warp knitting?
A Loose fibre mat
B Alternating weft picks
C Single crosswise strand
D Parallel warp sheet
Answer: D. Parallel warp sheet. Warp knitting feeds multiple yarns in parallel, commonly from a warp beam.
Warp yarns are positioned around needles by what element?
A Sinker bed
B Stitch cam
C Guide bar
D Take-down roller
Answer: C. Guide bar. Guide bars move and position warp yarns relative to the needles.
In warp knitting, what is an underlap?
A Loop on fabric face
B Back connecting segment
C Yarn package flange
D Needle hook opening
Answer: B. Back connecting segment. An underlap connects successive loops along the fabric back between adjacent wales.
How does a take-down mechanism act?
A Raises needle gauge
B Pulls fabric downward
C Feeds yarn to hooks
D Shifts guide bars
Answer: B. Pulls fabric downward. The take-down system draws the knitted fabric away from the knitting zone.
Cam tracks act on which latch-needle component?
A Butt
B Needle eye
C Hook
D Latch spoon
Answer: A. Butt. The butt engages the cam track, which controls needle movement.
Needle movement is controlled by which machine component?
A Yarn package
B Fabric tenter
C Warp beam
D Cam system
Answer: D. Cam system. Cams act on needle butts and guide their movement through the knitting cycle.
Single jersey has an unbalanced loop structure. Which effect is common at cut edges?
A Warp splitting
B Weft skew
C Web delamination
D Edge curling
Answer: D. Edge curling. The asymmetric face and back of single jersey create internal forces that can curl unsupported edges.