Theory of Textile Machines — Summer 2021

Classify gears based on the position of teeth on wheel.

State the relative advantages and disadvantages of chain and belt drives.

What are the different modes of transmitting power from one shaft to another? Compare them.

Why idler pulleys are used in belt drive?

Describe the construction of Epicyclical gear train

Explain various types of belt drives used in textile industry with neat sketch.

Explain different types of gears used in textile industry with neat sketch.

State any two applications of each - epicyclical and Reverted gear train.

Differentiate between Simple and Compound Gear Train.

How to calculate velocity ratio of compound and reverted gear train? Explain with suitable diagram.

List different types of cam. Also State the applications of Cam.

Describe the construction of spherical faced follower.

What is a cam? Discuss the various types of motion that can be transmitted with a cam and follower combination.

List different types of clutches and its two applications.

State different type of brake and clutch. What is difference between brakes and clutch?

Described the working of a band and block brake with help of neat sketch. Deduce the relation for ration of tight and slack side tensions.

Define: linear displacement, angular displacement and speed.

What is acceleration and retardation? Explain sley beat up mechanism.

What are the advantages possessed by ball and roller bearings over plain bearings? Sketch and described one type of roller bearing.

What is friction? Is it a blessing or curse? Justify your answer giving examples.

Explain the static and dynamic friction in brief.

Explain differential gearing mechanism of roving frame with suitable diagram.1

What is centre of gravity? State it’s important.

Give the definitions and units of force, momentum, work and power.

Explain kinematic of sley with suitable diagram.