1.

The helix angle is very small about 2‚Äö√Ö‚àû. The spring is open coiled spring.$

A. Yes
B. It is closed coiled spring
C. That small angle isn’t possible
D. None of the listed
Answer» C. That small angle isn‚Äö√Ñ√∂‚àö√ë‚àö¬•t possible


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