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1. |
In a steel roof truss, if angle iron purlin is used, its depth should not be less than |
A. | 1/60 × span of purlin |
B. | 1/45 × span of purlin |
C. | 1/60 × spacing of purlin |
D. | 1/45 × spacing of purlin |
Answer» C. 1/60 × spacing of purlin | |