Difficulty: Easy & Basic
How does the technical face of single jersey appear?
A Open mesh squares
B Horizontal yarn floats
C Interlaced warp ends
D V-shaped knit loops
Answer: D. V-shaped knit loops. The technical face of single jersey shows the legs of the knitted loops as V-shaped wales.
Why can rib fabric stretch widely across its width?
A Rib wales open outward
B Needles move sideways
C Yarn becomes twisted
D Courses disappear
Answer: A. Rib wales open outward. When stretched crosswise, rib wales unfold and open, giving rib fabric high widthwise extensibility.
For 1×1 rib, how are knit wales arranged?
A All on one bed
B In woven pairs
C Only on guide bars
D Alternating bed needles
Answer: D. Alternating bed needles. A 1×1 rib alternates needles from the two opposed beds, producing face and reverse wales.
In interlock, how do the two needle beds knit?
A Only in alternate courses
B Intermeshing sequence
C Together on one bed
D Without yarn overlap
Answer: B. Intermeshing sequence. Interlock needles on two beds knit in an intermeshing sequence to form a stable double-knit structure.
Name the double-knit structure that looks alike on both sides.
A Plain weave
B Single jersey
C Warp satin
D Interlock
Answer: D. Interlock. Interlock fabric presents a similar face appearance on both sides because of its intermeshed double-knit construction.
Purl fabrics alternate what between courses?
A Warp and weft yarns
B Open and closed selvedges
C Long and short floats
D Face and reverse loops
Answer: D. Face and reverse loops. Purl structures alternate face and reverse loops between courses.
Stitch density counts which fabric quantity?
A Yarns per package
B Loops per fabric area
C Feeders per machine
D Wales per course
Answer: B. Loops per fabric area. Stitch density is the number of knitted loops within a unit area.
With 12 wales/cm and 18 courses/cm, what is stitch density?
A 30 loops/cm²
B 216 loops/in²
C 216 loops/cm²
D 150 loops/cm²
Answer: C. 216 loops/cm². Stitch density is wale density multiplied by course density: 12 × 18 = 216 loops/cm².
Between adjacent needle loops, which yarn arc connects them?
A Sinker loop
B Guide-bar overlap
C Needle hook
D Latch spoon
Answer: A. Sinker loop. The sinker loop is the connecting yarn arc between neighboring needle loops.
Jacquard knitting forms a design by controlling which machine action?
A Individual needle selection
B Warp beam winding
C Yarn ply twisting
D Whole fabric take-up
Answer: A. Individual needle selection. Selecting needles according to the design controls where each yarn or stitch type appears.
On the technical back of single jersey, what is chiefly visible?
A Reverse loop heads
B Face-side wales
C Shuttle marks
D Warp floats
Answer: A. Reverse loop heads. The technical back of single jersey shows the reverse, semicircular portions of the loops.
Identify the lengthwise ladder defect formed by loop release.
A Barré
B Run
C Skew
D Bow
Answer: B. Run. A run is a lengthwise ladder caused when a knitted loop releases and successive loops unravel.
Missed yarn at one needle may produce which defect?
A Fabric bow
B Thick place
C Needle line
D Dropped stitch
Answer: D. Dropped stitch. A missed loop can leave a dropped stitch or small hole in the knitted fabric.
Horizontal bands from yarn variation are called what?
A Barré
B Press-off
C Run
D Needle line
Answer: A. Barré. Barré appears as unwanted horizontal striping, often linked to yarn or loop-length variation.
Damaged needles can leave which lengthwise fabric mark?
A Barré stripe
B Course bow
C Needle line
D Open selvedge
Answer: C. Needle line. A damaged or poorly working needle can form a visible vertical needle line in the fabric.
Why should yarn tension remain even during knitting?
A More fabric twist
B Consistent loop size
C Higher machine gauge
D Fewer needle beds
Answer: B. Consistent loop size. Steady yarn tension helps needles form loops of consistent length and appearance.
Positive yarn feeders regulate which delivery?
A Fabric width only
B Needle-bed spacing
C Warp-beam diameter
D Controlled yarn delivery
Answer: D. Controlled yarn delivery. A positive feeder supplies yarn at a controlled rate or length to support uniform knitting.
When yarn breaks at a feed, what does stop motion do?
A Stops the machine
B Raises the needle bed
C Changes fabric gauge
D Increases loop length
Answer: A. Stops the machine. A yarn-break stop motion detects a broken feed and stops the machine before a long defect develops.
Across a flat knitting bed, what carries the cam system?
A Creel
B Warp beam
C Carriage
D Take-down roll
Answer: C. Carriage. The carriage travels across a flat bed and carries the cam system that operates the needles.
How is working width set on a flatbed machine?
A Yarn package size
B Number of warp beams
C Active needle count
D Sinker depth
Answer: C. Active needle count. The number of needles brought into work determines the knitted width on a flatbed machine.
Before yarn enters the machine, where are packages held?
A Pulling finished fabric
B Setting machine gauge
C Holding yarn packages
D Driving needle cams
Answer: C. Holding yarn packages. A creel supports yarn packages before yarn is guided to the knitting machine.
Why are low-knot knitting yarns preferred?
A Wider fabric edges
B Fewer knitting interruptions
C Higher needle count
D More yarn twist
Answer: B. Fewer knitting interruptions. Knots can catch at guides or needles, so fewer knots reduce interruptions and fabric faults.
When many needles lose loops together, what major defect may result?
A Barré stripe
B Run
C Press-off
D Needle line
Answer: C. Press-off. A press-off occurs when many or all needles lose their loops, often producing a large fabric fault.
For shaped panels, which machine commonly uses a traversing carriage?
A Circular warper
B Flatbed knitting machine
C Raschel beam winder
D Shuttle loom
Answer: B. Flatbed knitting machine. Flatbed knitting machines use a carriage and can knit shaped panels by selecting needles and transferring loops.
Uniform yarn count helps maintain what?
A Identical fabric width
B Constant machine gauge
C Even fabric appearance
D Fixed number of feeders
Answer: C. Even fabric appearance. Uniform yarn count reduces thick and thin places that can disturb loop formation and fabric appearance.