Textile Calculations: Cover Factor (MATH401)

What is the number of threads in a weave repeat for a 3/1 twill weave?

5
6
3
4 (correct)

What is the Weave Factor for a 2/1 twill weave?

1.34
1.26
1.44
1.16 (correct)

What is the formula used to calculate the KC value?

28 x R + (0.732 x 2)
28 x R - (0.732 x 1)
28 x R - (0.732 x 2)
28 x R + (0.732 x 1) (correct)

What is the Weave Factor for a 4/1 satin weave?

1.34 (B) Signup and view all the answers

What is the number of intersections in a weave repeat for a 3/1 twill weave?

2 (D) Signup and view all the answers

What is the Weave Factor for a 1/1 plain weave?

1.00 (C) Signup and view all the answers

What is the definition of cover factor in textile calculations?

The ratio between the number of yarns per inch and the square root of the yarn count (B) Signup and view all the answers

What is denoted by Wp.C.F and Wt.C.F?

Warp Cover Factor and Weft Cover Factor (C) Signup and view all the answers

What is the formula to calculate the Cloth Cover Factor (K)?

(Wp.C.F + Wt.C.F) / 28 (A) Signup and view all the answers

What is the unit of Ends per inch (n1) and Picks per inch (n2)?

Inch^(-1) (B) Signup and view all the answers

What is the purpose of knowing the maximum EPI for a particular count?

To decide the weave possibility of a given construction (A) Signup and view all the answers

What is the value of Cloth Cover Factor (K) for a fabric with 40x40 / 120x70 construction?

22.54 (B) Signup and view all the answers

What is the relationship between contraction and density in fabric weaving?

Contraction is directly related to density (B) Signup and view all the answers

What is the formula to calculate warp contraction?

Warp Contraction = PPI x 3 Weave Factor x Weft Count (C) Signup and view all the answers

What is the unit of measurement for reed count in the Stockport system?

Number of dents per 2 inches (B) Signup and view all the answers

What is the formula to calculate reed count in terms of EPI and weft contraction?

Reed Count = (EPI x Weft Contraction %) / (1 + Weft Contraction %) (C) Signup and view all the answers

What is the purpose of the weave factor in calculating contraction?

To adjust the contraction value for different weaves (C) Signup and view all the answers

What is the unit of measurement for ends per inch (EPI)?

Number of ends per inch (A) Signup and view all the answers

What is the formula to calculate the minimum fabric thickness?

tmin (mm) = d1 + d2 (D) Signup and view all the answers

What is the unit of measurement for warp and weft diameters in the fabric thickness formula?

Millimeters (D) Signup and view all the answers

What is the formula to calculate the tape length in yards?

Tape Length (yards) = Cloth Length (yards) × 1.06 (C) Signup and view all the answers

What is the yarn rate in rupees per pound?

Rs. 150 (C) Signup and view all the answers

What is the formula to calculate the yarn cost?

Yarn Cost = Yarn Weight × Yarn Rate (A) Signup and view all the answers

What is the total weight of the fabric in pounds?

0.596 (C) Signup and view all the answers

What is the formula for calculating reed width?

Reed Width (Reed Space) = Cloth Width + Weft Contraction % (A) Signup and view all the answers

What does EPI stand for in the context of the provided text?

Ends Per Inch (C) Signup and view all the answers

What does the term 'denting of yarns' refer to in relation to reed width?

Positioning yarns in the reed (B) Signup and view all the answers

In the context of the provided text, how is reed width typically related to cloth width?

Reed width is greater than the cloth width (D) Signup and view all the answers

What is the relationship between EPI and Weft Contraction Percentage in the provided text?

EPI increases as the weft contraction percentage decreases (C) Signup and view all the answers

What is the purpose of calculating reed width in textile calculations?

To ensure proper denting of yarns in the reed (A) Signup and view all the answers