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Third Semester
Textile Technology
Scheme OCBC 2019
INTRODUCTORY SPINNING
Time : Three Hours
Maximum Marks : 70
Note : i) All 7 Questions are Compulsory. Internal choices has been given in each LO (Learning Outcome).
सभी 7 प्रश्न अनिवार्य है। आंतरिक विकल्प प्रत्येक LO (लर्निंग आउटकम) में दिए गए हैं।
ii) In case of any doubt or dispute, the English version question should be treated as final.
किसी भी प्रकार के संदेह अथवा विवाद की स्थिति में अंग्रेजी भाषा के प्रश्न को अंतिम माना जायेगा।
| Q. | LO | Questions | Marks |
|---|---|---|---|
| 1. | LO1 |
What are the objectives of Ginning? Sketch and explain the working of "Saw Gin". OR/अथवा
Discuss the various types of blending techniques. |
10 |
| 2. | LO3 |
What are the functions of Step cleaner? Explain the construction and working of step cleaner with appropriate diagram. OR/अथवा
Sketch and describe the working of a 3 bladed beater. |
10 |
| 3. | LO5 |
What are the objectives of feed regulating motion? Sketch and state its working. OR/अथवा
Write down maintenance schedule of blow-room machines. |
10 |
| 4. | LO7 |
Describe the working of flats with neat diagram. OR/अथवा
What are main defects in a carding web? Explain how the defects are removed. |
10 |
| 5. | LO9 |
Calculate the production / 8 hours of a blow room line in kg. If RPM of bottom calendar roller= 14, diameter of bottom calendar roller = 18 cm, lap hank = 0.0012 Ne, Efficiency = 80%, No. of scutcher = 2. ब्लो रूम लाइन के उत्पादन / 8 घंटे की गणना किलो ग्राम में कीजिए। यदि बॉटम कैलेंडर रोलर का RPM = 14, बॉटम कैलेंडर रोलर का व्यास = 18 सेमी., लैप हैंक = 0.0012 Ne, दक्षता = 80%, स्कचर की संख्या = 2 हो। OR/अथवा
|
10 |
| 6. | LO2 |
a) Compare the homogeneous and heterogeneous blending with reference to spinning process. |
5 |
|
b) What are the difference between mixing and blending? |
5 | ||
| 7. | LO7 |
a) What are the key features of Carding Machine? |
5 |
|
b) State the 'Carding Action' with diagram. |
5 | ||
| LO9 |
a) Find the blow room cleaning efficiency.
ब्लो रूम की सफाई दक्षता ज्ञात कीजिए।
|
6 | |
| LO10 |
If the draft constant in a carding machine is 1624 and the draft in the machine is 98. Find the necessary draft change wheel. If the draft change wheel in changed over to 24T, what is the draft? |
10 | |
| OR/अथवा | |||
| LO9 |
b) Find out hank (count) of a lap weight = 14 ozs/yds. 14 औन्स/गज वजन के लैप का हैंक (काउन्ट) ज्ञात कीजिए। |
4 | |
| OR/अथवा | |||
| LO10 |
Calculate the mechanical draft and production of a carding machine with the following particulars:
निम्नलिखित विवरणों के साथ एक कार्डिंग मशीन के यांत्रिक ड्राफ्ट और उत्पादन की गणना कीजिए।
|
10 |