Explore topic-wise MCQs in Graduate Aptitude Test (GATE).

Consider the following assertion [a] and reason [r] and choose the most appropriate answer 

[a] Heat setting increases the dimensional stability of synthetic fabrics 

[r] The free energy reduces as a result of heating

Consider the following assertion [a] and reason [r] and choose the most appropriate answer 

[a] In false-twist friction texturing, the ratio of input to output tension is kept close to one 

[r] Broken filaments and tight spots are within the acceptable limits at this condition

Consider the following assertion [a] and reason [r] and choose the most appropriate answer 

[a] Sodium cellulose xanthate formation is an essential unit operation in the production of viscose rayon 

[r] It helps to reduce the degree of polymerization of cellulose

Consider the following assertion [a] and reason [r] and choose the most appropriate answer 

[a] Nylon 6 is polymerized using only single monomer caprolactum 

[r] Synthesis of Nylon 6 is basically an addition polymerization

The particular integral of d2y/dx2 + 5 dy/dx + 6y = e2x is

 In a card the probability of fibre transfer from cylinder to doffer in one revolution of cylinder is 0.2. The probability that a particular fibre will be transferred to the doffer within the first three revolutions of cylinder is _______.

Out of 100 textile companies, 10 companies are involved in spinning, weaving and chemical processing, 25 companies are involved in spinning and chemical processing, and 30 companies are involved in weaving and chemical processing. If 65 companies are involved in chemical processing, the number of companies involved ONLY in chemical processing is_______.

The strength of 100 g/m2 fabric obtained by testing 4 cm wide strip is 0.4 kN. The tenacity (cN/tex) of the fabric is ______.

A loom is producing 2 m wide grey fabric with 8% weft crimp. Assuming that the loom is running at 570 rpm with 90% efficiency, the weft consumption in kg/hr of 30 tex yarn will be _______.

On twisting, the denier of a multifilament yarn consisting of 300 filaments of 3 denier each becomes 1100. If 11 km of untwisted filament yarn is twisted, its length in km will be __________.

The relationship between load (y) in N and elongation (x) in mm of a cotton fabric is y = √x . If the breaking elongation of the fabric is 9 mm, the work of rupture, in N.mm, is________.

A market survey by a garment manufacturing company revealed that the chest width of their target customers had normal distribution with a mean of 54 cm. If 18% of customers surveyed have chest width greater than 58 cm and 75% of customers surveyed have chest width greater than 52 cm, the percentage of customers having chest width between 56 cm and 58 cm is ________.

CSP of yarn is equal to the product of

In a given woven fabric the extension at break in weft direction is higher than that in warp direction. During bursting strength test, the threads that will always break first are

Nep count in a cotton fibre sample is measured by

Two yarn samples have standard deviation of strength σ1 and σ2. If σ1 < σ2, the 'F' ratio would be

Crease resist finishing of cotton fabric does not lead to

Disperse dye cannot generally be fixed on polyester by

The highest washing fastness in a dyed cotton fabric would be obtained if the dye-fibre bond is

During bleaching of cotton with H2O2, the stabilizer used is

The nonwoven process which has the highest production rate is

In weft knitted fabrics of the same mass per unit area produced from the same yarns, the structure which will give the highest thickness is

Shuttle remains on the race board during its flight in the shed because of

 Increase in the ratio of the length of crank to the length of connecting rod leads to

 Increase in taper angle on sectional warping drum will normally require

Amongst the following, the suitable technology for producing core spun yarn is

Compared to the spinning of finer cotton yarns, the preferred rotor diameter for the production of very coarse cotton yarns would

Softer cots on drafting rollers result in

Fibre individualization in a card will increase by increasing

A machine that does not improve the mass evenness is

Birefringence of filament yarn is related to its

Surface features of a fibre can be obtained by

The fibre that dissolves in 59% (w/w) sulfuric acid solution is

Wet spinning technique is commercially used to produce filament yarn of

 Condensation polymerization is not used to produce

The fibre that contains nitrogen and sulfur is

The documents expose the cynicism of the government officials – and yet as the media website reflects, not a single newspaper has reported on their existence. 

Which one of the following inferences may be drawn with the greatest accuracy from the above passage?

A smuggler has 10 capsules in which five are filled with narcotic drugs and the rest contain the original medicine. All the 10 capsules are mixed in a single box, from which the customs officials picked two capsules at random and tested for the presence of narcotic drugs. The probability that the smuggler will be caught is

Ravi is taller than Arun but shorter than Iqbal. Sam is shorter than Ravi. Mohan is shorter than Arun. Balu is taller than Mohan and Sam. The tallest person can be

Let f(x) = x – [x], where x ≥ 0 and [x] is the greatest integer not larger than x. Then f(x) is a

A value of x that satisfies the equation log x + log (x – 7) = log (x + 11) + log 2 is

Ten teams participate in a tournament. Every team plays each of the other teams twice. The total number of matches to be played is

Which one of the parts (A, B, C, D) in the sentence contains an ERROR? 

No sooner had the doctor seen the results of the blood test, than he suggested the patient to see the specialist.

Choose the grammatically CORRECT sentence:

Choose the most appropriate pair of words from the options given below to complete the following sentence: 

The high level of ___ of the questions in the test was ___ by an increase in the period of time allotted for answering them.

Which one of the following options is the closest in meaning to the word given below? 

Pacify

A cotton fibre of 180 millitex has a density of 1.5 g/cm3 and an average perimeter of 40 μm.

The average degree of thickening of cell wall is approximately

A cotton fibre of 180 millitex has a density of 1.5 g/cm3 and an average perimeter of 40 μm. 

The average area of the cell wall (μm2) is

The thermal conductivity of a nonwoven fabric is given by 

λ = 0.03 + 0.00005ρ + 0.15/ρ 

where λ is the thermal conductivity of the fabric in W/(m⋅K), ρ is the bulk density of the fabric in kg/m3, and ρ∈[10,200].

The minimum value of thermal conductivity, in mW/(m⋅K), is approximately

The thermal conductivity of a nonwoven fabric is given by 

λ = 0.03 + 0.00005ρ + 0.15/ρ 

where λ is the thermal conductivity of the fabric in W/(m⋅K), ρ is the bulk density of the fabric in kg/m3, and ρ∈[10,200].

Thermal conductivity is minimum when the bulk density is approximately