Correct Answer - Option 1 : B.S.P
Explanation:
A thread is a ridge of a uniform cross-section which follows the path of a helix around the cylinder or cone, either externally or internally.
The different standards of V threads for a screw thread are:
|
Thread
|
Application
|
|
BSW (British Standard Whitworth) thread
|
Used for general purpose fastening thread
|
|
BSF (British standard fine) thread
|
Used in automobile industries
|
|
BSP (British standard pipe) thread
|
Used in pipe and pipe fitting
|
|
BA ( British Associate) thread
|
Used in small screws of electrical appliances, watch screws, screws of scientific apparatus
|
Different types of threads and included angle:
| Thread type |
Included angle |
| BSP thread (British Standard Pipe thread) |
55° |
| BA thread (British Association thread)
|
47 ½° |
I.S.O Metric thread (International Standard Organisation
metric thread) |
60° |
