This document contains questions related to various dyeing machines and processes. It includes questions about beam dyeing machines, padding mangles, jet dyeing machines, beaker dyeing machines, U-type dyeing machines, arm dyeing machines, hydro-extractors, electrochemical dyeing, ultrasonic dyeing, dyeing of blends, single bath vs two bath dyeing, and reuse of dye baths. The questions cover topics such as working principles, machine parts, advantages/disadvantages, applications, classifications, and processes for different types of dyeing equipment and methods.

1. Unit – 2 one-mark questions - Mid – 2
1. What is a beam dyeing machine? Write the schematic diagram of a beam dyeing machine
2. Explain the working principle of beam dyeing machine
3. State and list features of HTHP beam dyeing machine
4. Give the advantages and disadvantages of beam dyeing machines
5. Briefly discuss the functions and machine parts of a beam dyeing machine
6. State the application of padding mangles
7. Describe briefly the working principle of a padding mangle
8. Give the classification of padding mangle based on their construction
9. Why is padding mangle called the workhorse of dyeing unit. Give reasons
10. Describe the dyeing process in a Jet dyeing machine
11. List different machine parts of a Jet dyeing machine
12. Describe briefly the working principle of an overflow jet dyeing machine
13. Describe briefly the working principle of an soft flow jet dyeing machine
14. Describe briefly the working principle of an airflow jet dyeing machine
15. Explain the variable jet flow position nozzles in a Jet dyeing machine
Unit- 2 - Ten-mark questions
1. Write short notes on
HTHP beam dyeing machine B] Padding mangles
2. How are jet dyeing machines different from HTHP dyeing machines? Discuss the
working principle of overflow, soft flow and airflow jet dyeing machines. State the
advantages, technical specification and applications of these machines

2. Unit – 3 One-mark question - Mid 2
1. What is a multi-nozzle soft flow machine. Give its advantages
2. Write the sketch of a multinozzle soft flow machine and state its technical features
3. What is meant by beaker dyeing? Where are these machines used?
4. Classify beaker dyeing machines based on their working principle.
5. Discuss the working principle of IR beaker dyeing machine
6. What is a HTHP beaker dyeing machine. State and explain the principle of operation
of HTHP beaker dyeing machine
7. Why are U type dyeing machines used? State its advantages
8. Explain a U type dyeing machine using a schematic diagram representing various
parts of a U type dyeing machine
9. What do you understand by the term Industrial basket. State its advantages
10. Why are arm dyeing machine used. How are these machines different from ordinary
dyeing machines?
11. Discuss the working principle of arm dyeing machines
12. Write the sketch of an arm dyeing machine and state the functions of different
machine parts used in arm dyeing machine
13. Briefly discuss the disadvantages of arm dyeing machines
14. Write the applications of arm dyeing machines
15. What is a hydro-extractor? Why are these machines used? State their advantages
16. Define electrochemical dyeing
17. State the advantages of electro chemical dyeing
18. Describe the mechanism of electro-chemical dyeing process
19. Give classification of electro-chemical dyeing. Briefly describe one method of
electrochemical dyeing process
20. Briefly explain the general reaction of an electro-chemical process
21. What is Nernst equation. Give its significance in electrochemical dyeing
22. Describe ultrasonic dyeing process
23. Describe the mechanism of Ultrasonic dyeing.
24. State and explain the functions of different dyeing parts of a ultra sound dyeing
machine

3. 25. How does dyeing process occur in ultrasound dyeing machine? Explain briefly the
process sequence
26. Give the specifications of Ultrasonic dyeing machine.
27. State the advantages an dis-advantages of ultrasonic dyeing process
28. State different methods used in dyeing blended fabrics. Explain any one process used
in blend dyeing
29. Differentiate between one bath dyeing and 2-bath dyeing methods. Give examples
30. What do you understand by the term reuse of dyebath. Briefly describe the process
followed for reusing dyebath.
Unit- 3 Ten-mark Questions - Mid 2
Q 1. Explain the working principle of
a. Multinozzle soft flow economical dyeing machines
b. Beaker dyeing machines and their classification
Q 2. Write short notes on
a. HTHP beaker dyeing machine
b. IR beaker dyeing machine
c. Industrial basket
d. U type dyeing machines
Q 3. Describe the following
a. Mechanism of ultrasound dyeing process
b. Ultrasound dyeing machine parts, Advantages and disadvantages
Q 4. Discuss the mechanism of electrochemical dyeing process. Give the mechanism of
electrochemical dyeing its working principle. State its advantages and disadvantages.
Q 5. Write short notes on
a. Dyeing of blends
b. Single bath and 2 bath dyeing methods
c. Reuse of dye bath