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Yarn Manufacturing Process

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Questions and Answers

What is the primary function of the first machine operation in the yarn manufacturing process?

To prepare the base metal for the lathe machine
To remove impurities from the raw material
To produce nuts and bolts
To separate individual fibers from the flocks (correct)

What is the cleaning efficiency formula used to calculate the percentage of total material eliminated?

CE = (AT - AE) x 100 / AE
CE = (AT + AE) x 100 / AE
CE = (AT - AE) x 100 / AT (correct)
CE = (AT + AE) x 100 / AT

What is the role of minor cleaning points in the yarn manufacturing process?

To produce high-quality yarn
To remove major impurities from the raw material
To maintain the machine
To prepare the material for the major cleaning points (correct)

What is the approximate percentage of impurities removed by a B/R installation?

40-70% (D) Signup and view all the answers

What is the term used to describe the weight of the flocks in the B/R process?

Flock weight (D) Signup and view all the answers

What is the purpose of the lathe machine in the yarn manufacturing process?

To produce nuts and bolts (C) Signup and view all the answers

What determines the production rate and degree of opening in the blower fan operation?

The speed of the inclined lattice and its spacing from the evener roller (B) Signup and view all the answers

Which type of cleaner is used for fine cleaning of cotton?

RN cleaner (C) Signup and view all the answers

What is the purpose of the grid bars in the ERM cleaner?

To separate the materials from fine dust and trash (A) Signup and view all the answers

What happens when the vertical lattice and evener lattice are wider?

Less material passage and more opening (B) Signup and view all the answers

What is the effect of closer setting of the vertical lattice and delivery roller?

Less production (A) Signup and view all the answers

What is the purpose of the beater/roller in the ERM cleaner?

To beat the materials finally (B) Signup and view all the answers

What is the purpose of the evener roller in the bale opener?

To control the amount of passage of cotton by opposite spike action (A) Signup and view all the answers

What happens to the cotton lumps that are too large to pass through the space between the inclined lattice and the evener roller?

They are thrown back into the blending hopper (B) Signup and view all the answers

What is the function of the wiper roller in the bale opener?

To wipe the cotton to the surface of the evener roller (B) Signup and view all the answers

What is the purpose of the suction fan in the bale opener?

To collect the dust and dirt through pipeling (D) Signup and view all the answers

What is the primary action of the spike lattice in the bale opener?

To carry cotton with its spike towards the evener roller (B) Signup and view all the answers

What is the benefit of using a bale opener in yarn manufacturing?

It increases the production efficiency of the yarn manufacturing process (A) Signup and view all the answers

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