Mechanics of Textile Machinery (MCQ : MODULE 10- Brakes )

 

Question 1: Drum brake used in lap former is

Self locking brake
Self acting brake
Partial self-energizing brake
None of the above

Question 2: Brake used in lap former is to control

The thickness of lap
The linear density of lap
The speed of feed roller of piano feed regulation
None of the above

Question 3:In the case of brake in lap former, to process polyester and acrylic fibres

The dead weight must be decreased
The dead weight must be moved towards the pivot of lever
Size of brake shoe must be larger
None of the above

Question 4: The brake used to stop the spindle in ring spinning machine is

Block brake with short shoe
Pivoted single block brake with long shoe
Differential band brake
Simple band brake

Question 5:The brake used for warp let-off in a conventional loom is partial self energizing, because

The radius of ruffle is kept very large
An upper limit is always placed on the maximum warp beam diameter
Dead weight placed on the lever is sufficiently large
Angle of wrap of chain around the ruffle is kept above a critical value

Question 6: In the case of disk clutch-and-brake, while starting the machine

Brake is disengaged followed by engagement of clutch
Clutch is engaged followed by disengagement of brake
Clutch is disengaged followed by braking
Braking followed by engagement of clutch

 

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