The principal objective of heat setting synthetic thermoplastic fibres is to:

During reactive dyeing of cotton, sodium carbonate is mainly added to:

In a ring spinning frame, the main function of the traveller is to:

Which dye class is particularly suitable for dyeing wool under acidic conditions?

The coefficient of variation of yarn mass per unit length is primarily used to assess:

Which conventional spinning system normally produces comparatively higher yarn hairiness than compact spinning?

Viscose rayon is classified as:

Which machine element guides yarn to the needle during knitting?

In woven fabric terminology, the fell refers to:

The degree of polymerization of cellulose represents approximately:

The primary role of a mordant in traditional dyeing is to:

Which fibre is strongly thermoplastic and can be heat set to improve dimensional stability?

The main purpose of warp sizing before weaving is to:

A regular 2 over 2 under twill normally has a basic repeat of:

Calendaring primarily modifies the:

Polyethylene terephthalate, commonly used for polyester fibres, is produced principally from:

An Uster evenness tester is mainly used to measure:

Nylon 6,6 is formed by condensation polymerization of:

Reactive dyes achieve good fixation on cotton mainly through:

The principal functions of the reed in a loom include:

In cotton spinning, what is the principal purpose of drafting in a draw frame?

Yarn tenacity is best defined as:

A missing warp end in a woven fabric produces a defect commonly called:

In textile yarn numbering, the count primarily indicates:

Which synthetic fibre has exceptionally low moisture regain because of its highly hydrophobic structure?

The crystalline cellulose form commonly associated with mercerized cotton after alkali treatment and washing is:

Textile moisture regain is conventionally calculated using:

Periodic variation in yarn linear density caused by irregular fibre control during drafting is primarily manifested as:

The twist multiplier of a spun yarn expresses the relationship between:

The minimum number of shafts normally required to produce a basic plain weave is:

The ability of a textile fibre to absorb moisture from humid surroundings is most directly represented by:

In weft knitting, a course is defined as:

The shedding mechanism of a loom performs which operation?

In textile dyeing, exhaustion refers to:

Increasing twist in a spun yarn generally causes:

Which of the following is a major bast fibre obtained from the stem of the plant?

Nylon 6 is industrially produced mainly from:

Mercerization of cotton with concentrated sodium hydroxide can improve:

In an indirect yarn numbering system such as English cotton count, an increase in count indicates:

Acrylic fibre is characterized by a high proportion of:

In rotor spinning, the separated fibres are primarily collected:

The main purpose of scouring cotton before bleaching and dyeing is to remove:

Which finishing process is specifically intended to reduce dimensional shrinkage of cotton fabrics?

If spindle speed is increased substantially in ring spinning while other parameters remain unchanged, which effect becomes increasingly important?

The expression 'picks per inch' in woven fabric construction refers to:

Which reducing agent is widely used to convert vat dyes into their soluble leuco form during cotton dyeing?

Grey scales in textile colour fastness testing are primarily used to evaluate:

Which fibre characteristic most strongly limits the fineness of yarn that can be produced from cotton using conventional ring spinning?

Which instrument is commonly used for objective measurement of textile colour?

The primary purpose of spinning is to:

In warp knitting, a wale represents:

Vat dyes are characterized by the fact that they are:

The overlapping scale structure on the surface of wool fibres is primarily responsible for:

The limiting oxygen index of a textile material indicates:

Hydrogen peroxide is widely used for bleaching cotton because it:

Liquor ratio in textile dyeing strongly influences:

In dyeing terminology, fixation differs from exhaustion because fixation refers to:

The principal objective of compact spinning is to:

The colour fastness test that evaluates colour transfer caused by rubbing is called: