Question
In ________ the package is driven in frictional contact with the drum.
The correct answer is
Drum driven winding
Drum Driven Winding Explained
The question asks to identify the winding method where the package is driven by frictional contact with the drum. Let's analyze the options:
- Drum driven winding: This method is characterized by the yarn package being rotated through friction against a rotating drum. The drum is the primary driver, and its surface creates the necessary friction to turn the package being wound. This directly matches the description given in the question.
- Spindle driven winding: In this method, the spindle itself rotates the package. The package is mounted on a spindle, and the spindle's rotation causes the package to rotate. This is different from being driven by a separate drum via friction.
- Pirn winding: Pirn winding refers specifically to the process of winding yarn onto a pirn, which is a type of bobbin used in looms. While it's a type of winding, it doesn't specify the driving mechanism (it could be drum-driven or spindle-driven).
- Weft winding: This process involves winding weft yarn, typically onto smaller packages like bobbins or cones, for use in weaving. Like pirn winding, it describes the application rather than the specific mechanical method of driving the package through friction with a drum.
Therefore, the method where the package is driven in frictional contact with the drum is specifically known as Drum driven winding.
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- Which of the following relationships is/are not true?
(A). Most probable velocity = $\sqrt{\frac{2RT}{M}}$
(B). PV = $\frac{3}{2}kT$
(C). Compressibility factor Z = $\frac{pV}{nRT}$
(D). Average kinetic energy of gas = $\frac{1}{2}kT$
Choose the correct answer from the options given below - Match List-I with List-II
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- Match List-I with List-II
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Choose the correct answer from the options given below: - The structure of protein comprises of:
(A). Primary structure of protein is associated with amino acids
(B). Secondary structure of protein is associated to peptides
(C). Tertiary structure of protein is associated with polypeptide chains
(D). Quaternary structure of protein is associated with polypeptide chains
Choose the correct answer from the options given below:
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