List of practice Questions

The gear A of 20 teeth meshes with gear B of 10 teeth that is compounded to wheel C of 30 teeth that meshes with gear D of 10 teeth. The velocity ratio between gear D and gear A is
The centrifugal force (N) acting on a material mass 2g present at the tip of a beater of radius 25 cm rotating at 600 rpm is
The trash removal is higher at
A reed has 15 dents/cm, and the warp is drawn in two ends per dent. If the finished fabric is 1.4 m wide compared with 1.47 m wide in the reed, what is the finished fabric sett?
Among the following systems of drafting, the objective of which is to reduce the friction between adjacent warp ends?
The contraction percentage of 1 x 1 rib structure compared to its machine width is around
What will be the loop length of the knitted fabric having course length 60 cm and wale length 80 cm and number of loops per course 40?
What will be the tightness factor of the plain single jersey knitted with 64 tex yarn and 1.5 cm loop length?
In Rib Knitting machine, the Knittable yarn count in 'Ne' is calculated by
In Weft knitting machine, the term 'Robbing back' is
Which of the following Thermal techniques utilizes the mechanical hammering for conversion of vibration energy to heat energy for bonding the fibrous web?
Which of the following fibers can be used for manufacturing of absorbent core based nonwoven products?
In which of the following web laying techniques, high loft structures can be produced?
The temperature of the air in melt blown process is set close to ________ of the polymer.
Which of the following Mechanical finishings is adopted to improve the lusture of bonded fabric?
A mill spinning 40° Ne carded yarn with the following fiber properties. Find the Fiber Quality Index? \( 2.5% \text{ S.L } = 28 \text{ mm} \) Uniformity ratio = 0.47 Micronaire value = 4.3 Bundle strength (g/tex) = 22.5 Maturity ratio = 0.80
Calculate the tenacity (g/tex) of cotton sample (at gauge length 1/8 inch) if the breaking load is 6.1 kg and the weight of the bundle is 3.9 mg obtained from the Pressley fiber strength tester?
If 840 mature fibers and 160 immature fibers were found in a test specimen, the percent immaturity would be
If the weight of a sample of cotton decreases from 107.5 to 100 grams when heated at 105 °C for 2 hours. The Moisture Content and Regain is
If 75 km of yarn weigh 2.5 kg, the count in metric system will be
The CV % of mass irregularity of yarn generally equals U % multiplied by
In Yarn Evenness testing the variance length curve is more suitable for
The U% of Single yarn is 17.3%. The expected U% of a 3 - ply yarn produced from this yarn will be
Crimp interchange is a phenomena associated with
For spreading knitted and other stretch fabric the spreading device should include