Stiffness of the spring can be increased by

1.	Stiffness of the spring can be increased by
A.	increasing the number of turns
B.	increasing the free length
C.	decreasing the number of turns
D.	decreasing the spring wire diameter
Answer» D. decreasing the spring wire diameter

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Initial gap between two turns of a close coiled helical tension spring should be

Stiffness of the spring can be increased by

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