Theory of Textile Machines — Summer 2024

State any two advantages of' V-belt drive over flat belt drive.

Define the terms related to belt drive: slip and creep.

How chain drive used to transmit motion and where it is use? State the advantages and disadvantages of chain drive.

Write advantages of rope drive.

Explain i) Helical gear ii) Bevel gear iii) Spiral gear iv) worm gear.

Explain the following gear trains with a neat sketches and mention their applications: (i) Reverted gear train and (ii) Epicyclic gear train.

Discuss the different types of belts and their material used for power transmission.

State any three advantages and disadvantages of gear drive.

How are the cams classified? Also give its application.

Explain construction and working of a band and block brake with suitable diagram.

Briefly write about application of clutch and brake.

Classify and state application of ball and roller bearings textile.

Write short note on coefficient of friction.

Explain about angular displacement with suitable example.

Explain briefly about work done and power.

What is a clutch? Discuss the various types of clutches giving at least one practical application for each.

What are the classifications of follower according to follower shape?

Explain acceleration and retardation with respect to textile mechanism.

What is let off? Draw negative let-off mechanism. How to avoid short term and long term tension variation from full beam to empty beam?

Explain briefly about centre of gravity.

Describe design of knitting cams with suitable diagram.

Write short note on application of differential gear in a speed frame.

Derived the relation between force, time and momentum.

Explain four link sley beat mechanism with diagram.

Describe important steps in designing of shedding cam with suitable sketch.1