Securing and Supporting Type FMC

For flexible metal conduit, if flexibility is necessary after installation, unsecured lengths from the last point the raceway is securely fastened must not exceed _____ .

a) 3 ft for trade sizes 1/2 through 1 1/4
b) 4 ft for trade sizes 1 1/2 through 2
c) 5 ft for trade sizes 2 1/2 and larger
d) all of the above

See answer and applicable Code reference

The correct answer is: d) all of the above

The rules for securing and supporting Ty

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