| Post Name | Tradesman Textile Technology - Technical Education |
|---|---|
| Question Paper Code | 011/2026/OL |
| Category Code | 275/2025 |
| Date of Test | 22 January 2026 |
| Exam Type | Online Examination |
| Total Questions | 100 |
1
The cohesiveness is the ability of fiber to ________ together.
Answer
B. Cling
2
The main constituent of wool fiber is _____________
Answer
D. Keratin
3
Which of the following is a leaf fiber
Answer
D. Sisal fiber
4
Which of the following is a manmade cellulosic fiber ?
Answer
A. Rayon
5
Caustic soda is used in _____________ process.
Answer
B. Mercerization
6
Acetate is derived from
Answer
A. Cellulose
7
Diameter of silk filament ranges from
Answer
Question Cancelled
8
The ability of fiber to stretch and return to its shape is
Answer
B. Elasticity
9
Resistance to _____________ is ensure dimensional stability of the fabric.
Answer
D. Shrinkage
10
Inner hollow hole of cotton fiber known as
Answer
Question Cancelled
11
What is ginning process ? i. Drying, cleaning and dusting of the seed cotton. ii. Separation of cotton fibers from the seed. iii. Cleaning of the lint cotton.
Answer
D. All of the above i, ii and iii
12
In hand harvested seed cotton the "Foreign Matter" levels will be usually in the range
Answer
D. 1% to 5%
13
Optimum fibre-moisture content for roller ginning process is
Answer
B. 5% to 6%
14
Number of cleaning points in the Blowroom of cotton processing are decided base on i. Type of Ginning (Roller or Saw Ginned) ii. The amount of Trash % present in cotton iii. The number of Trash particles and the type of Trash particles
Answer
D. All of the above i, ii and iii
15
The tuft size fed to the Bale Openers should be of
Answer
D. As small as possible
16
Cleaning Efficiency % (C.E.) of the Blowroom is determined by the formula
Answer
A. C.E. % = (A − B)/A × 100
17
In the Lap Forming unit of Scutcher 4 highly polished cast iron calendar rollers are mounted one over the other and heavily weighted with a force of upto
Answer
B. 2 tonnes
18
The formula to find out the Neps per 100 mg Card Silver is
Answer
B. Standard Nep Count / 1.85
19
The difference in leading angle between cylinder and doffer wire should be
Answer
B. 10° to 15°
20
In most modern cards we can achieve a maximum cylinder speed of
Answer
D. 600 rpm
21
Match the following parts of a Draw Frame with their correct functions : Column A (Parts) Column B (Functions) A. Soft rollers 1. Converts sliver into uniform ribbon by air suction B. Hard rollers 2. Apply pressure to hold fibres firmly during drafting C. Pressure bar 3. Control fibre movement and improve fibre straightening D. Condenser 4. Provide positive drive and control draft accurately
Answer
B. A-3, B-4, C-2, D-1
22
Combing efficiency is a measure of
Answer
B. Increase in 2.5% span length of fibre
23
Assertion (A) : Increasing delivery speed always increases drafting irregularity. Reason (R) : Fibre control decreases at higher drafting speeds.
Answer
C. A is true but R is false
24
In a sliver lap machine, 30 slivers of 0.14 Ne are combined with a draft 2.8. In a ribbon lap machine 6 of these laps are combined with draft 4.0. Linear density of resultant lap (g/m) is
Answer
A. 67.8 g/m
25
For calculating the production (kg) of comber which of the following details are essential ?
Answer
D. linear density of lap, feed per nip, nips/min, noil%
26
In the context of combing cycle, consider the following process sequences P : Lap feeding Cylinder combing forward movement of nipper Top comb lowering Q : Lap feeding Top comb lowering Cylinder combing Detaching R : Cylinder combing Nipping Top comb lowering Forward movement of nipper S : Nipping Cylinder combing Forward movement of nipper Detaching The set of correct statement is
Answer
B. P, S
27
A roving of 15 yards weighs 104 grains. Calculate the hank (Ne) of the roving.
Answer
B. 1.2
28
If a bobbin in a simplex machine misses alternate layers while building, the problem is
Answer
C. Faulty ratchet/pawl engagement
29
If the bobbin rail is overfilled, the symptoms include
Answer
C. Bowed or irregular roving build
30
Match the speed frame motion fault with its mechanical reason Column A (Fault) Column B (Reason) A. Skipped layers 1. Worn ratchet/spur wheel teeth B. Uneven traverse 2. Loose vertical shaft C. Crooked/bowed silver build 3. Misaligned lifter pinion/rack D. Yarn slack/uneven tension 4. Low deadweight tension
Answer
A. A-1, B-2, C-3, D-4
31
The optimum twist per inch is reached quickly for
Answer
C. Longer and finer cottons
32
Minimum angle of yarn pull for smooth travel of traveller is
Answer
A. 23°
33
The amount of coating removed from the cot diameter per buffing cycle lies in the range of
Answer
B. 0.2 mm
34
With increased ring diameter, for a given spindle speed
Answer
B. The traveller speed increases
35
In a ring frame, if total draft is 30 and break draft is 1.25, then main draft is
Answer
D. 24
36
Calculate the Draft Change Wheel required to spin a yarn out of 0.8 s Ne hank fed roving with a draft constant 1300 and yarn count at front roller is 40 s.
Answer
A. 26 T
37
Moire effect is associated with
Answer
B. Roller nip
38
Calculate the delivery speed of the ring frame in m/min for spinning the yarn at 30 tpi and spindle speed is 22000 rpm.
Answer
C. 18.6 m/min
39
If twist multiplier is 4.2, calculate the TPI for 36 Ne yarn
Answer
B. 25
40
Coil angle and wind angle collectively makes _________ degree in the package winding.
Answer
A. 90
41
In sizing machine, when machine speed increases, the size pick up
Answer
A. Increases
42
Multi-coloured yarn effect can be achieved with
Answer
C. Sectional warping machine
43
Joining of broken yarn ends on a winding machine : splicing is the best option to eliminate the problem of knotting and piecing; although, the tensile strength of yarn with a knot is _________ to that of the yarn with a splice.
Answer
C. Superior
44
To prevent mildew formation or bacteria from growing in sized beams or fabric woven from sized warps, antiseptics or anti-mildew agents are used __________ is the most effective antiseptic agent, since it is both an antiseptic and a humectant.
Answer
B. Zinc chloride
45
The number of cones in the supply package in warping machine is in the range of
Answer
A. 400 - 1200
46
In surface driven winder, the winding speed is
Answer
A. Constant
47
Tension in yarn during winding from bobbin depends on the unwinding speed is proportional to Where, T = Tension in yarn during winding, V = unwinding speed
Answer
B. T ∝ V²
48
If the yarn is repeatedly laid on the top of or along the same path as the previously wound yarn, this duplication of yarn path on the package creates a defect known as
Answer
C. Ribboning or patterning
49
Drawing of 4 ends per dent instead of 2 ends per dent in reed will result in
Answer
A. increased warp breakage rate
50
____________ is defined as a small length of yarn wound on to the pirn near its butt end. Generally, it consists of a length of yarn equal to about three times the width of cloth or length for 3 pick insertion.
Answer
C. Bunch or reserve
51
The lifting plan and design of the weave will be same in the case of ___________ draft.
Answer
A. straight
52
Identify the wrong statement with respect to canvas method of weave representation.
Answer
C. Blank square indicates warp overlap
53
Which element of a woven design denotes the number of heald shafts required for a given weave repeat ?
Answer
B. Draft
54
Gaberdene weave is a ____________ twill.
Answer
C. balanced
55
The move number for the construction of satin weave should _________ the repeat size of weave.
Answer
D. not be equal
56
Extending the plain weave structure in both horizontal and vertical directions result in
Answer
A. Matt rib
57
Which is true with respect to brighton honey comb weave ?
Answer
C. single diagonal line crosses a double diagonal line
58
The weave that produce longitudinal sunken lines in the warp direction is
Answer
A. Bedford cord
59
The popular twill weave such as denim is ___________ in nature.
Answer
A. warp faced
60
Choosing a simple motif and reversing at intervals within the design repeat so as to get an irregular effect produces _____________ weave.
Answer
B. crepe
61
Which fabric formation method ensures the highest dimensional stability in textiles ?
Answer
C. Weaving
62
Which auxiliary motion precisely governs fabric density by regulating the length of fabric withdrawn during the weaving cycle ?
Answer
B. Take-up motion
63
Positive shedding differs from negative shedding in this way
Answer
C. Positive shedding mechanically returns the harnesses to their original position, but negative shedding relies on gravity or springs for the return
64
Which statement accurately defines the function of over-picking in shuttle weaving systems ?
Answer
B. It propels the shuttle with greater speed and striking force
65
Positive let-off mechanism is designed to
Answer
A. Maintain constant warp tension throughout weaving
66
A fast reed mechanism is primarily used to
Answer
B. Safeguard the shuttle from damage during beating
67
Which shaft is responsible for controlling the shedding motion in a loom ?
Answer
Question Cancelled
68
In the Jacquard mechanism, the process of "casting out" refers to
Answer
B. Selecting which hooks will lift the harnesses to form the pattern
69
What does the loom constant refer to ?
Answer
B. A constant factor used in calculating loom production efficiency
70
In a Jacquard system, to which part of the hook is the harness cord typically looped or attached ?
Answer
B. The lower end, which is often doubled for secure attachment
71
The Starch act as ______________ agent in cotton yarn sizing.
Answer
B. Binding
72
Sodium persulphate is used in
Answer
A. Bleaching
73
Compared to conventional sizing, wet sizing process reduces
Answer
A. Size Consumption
74
In dyeing of wool with levelling acids dyes, with time, the pH of dye bath
Answer
B. Decreases
75
The purpose of carbonisation of wool is to remove
Answer
C. Vegetable Matters
76
The maximum swelling of cotton during mercerisation occurs when
Answer
B. NaOH concentration is around 18-20%
77
Why are Optical Brightening Agents less effective on wool compared to cotton ?
Answer
C. Wool's yellowish natural chromophores mask fluorescence
78
Which parameter most directly affects the removal of hydrophobic impurities during yarn scouring ?
Answer
B. Surfactant concentration
79
What is the primary chemical interaction responsible for the high wash fastness of reactive dyes on cotton fibers ?
Answer
B. Covalent bond formation between dye reactive groups and cellulose hydroxyls
80
Why is acid desizing (using dilute HCl or H 2SO4) rarely practiced in modern textile processing ?
Answer
B. It causes hydrolytic damage to cellulose fibers
81
The good sunlight resistance (light-fastness) achieved with certain acid dyes in wool is primarily due to
Answer
B. Electron-stable chromophore of the dye
82
The point where no more dye is taken up by the fibre and absorption equals desorption is called
Answer
C. Equilibrium exhaustion
83
Direct dyes are generally
Answer
B. Water-soluble anionic dyes with affinity for cellulose
84
Side-to-centre colour variations in Jigger dyeing are commonly known as
Answer
A. Listing
85
Which among the following dyes are also known as "Diamine colours" ?
Answer
C. Direct dyes
86
Bronziness of shades in sulphur dyeing is primarily caused by
Answer
A. Premature oxidation
87
During vat dyeing, the insoluble dye is converted into a soluble leuco form by
Answer
C. Reduction in alkaline medium
88
Which of the following is not a chromophoric system found in chrome dyes ?
Answer
D. Sulfonated aromatics
89
One of the merits of using o-phenyl phenol as a carrier in polyester dyeing with disperse dyes is
Answer
C. Applicability up to pH 9.0
90
Disperse dyes are held on nylon fibres by
Answer
D. Physical bonding forces
91
The thickener in printing paste is primarily used to
Answer
C. Prevent colour spreading
92
In discharge printing, the agent used to remove colour is referred to as
Answer
B. Reducer
93
The method that creates the sharpest, most detailed prints is
Answer
B. Roller printing
94
The printing process, where a heat treatment is used for a very short time is
Answer
B. Transfer printing
95
The function of photo-emulsion in screen printing is to
Answer
B. Create the design on the screen
96
An anti-shrinking finish is a
Answer
A. Mechanical permanent finish
97
The finishing operation done on the fabric to impart a different degree of lustre to the fabric is
Answer
C. Calendering
98
Which chemical is commonly used for crease-resistant finishing of cotton?
Answer
B. Formaldehyde-based resins
99
The finish that improves fabric resistance to water but allows air permeability is
Answer
B. Water-repellent finish
100
The heat setting of polyester fabric is usually carried out in
Answer
C. Stenter
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