An angle section can be used as purlin when the slope of the roof trus

1.	An angle section can be used as purlin when the slope of the roof truss is _________.
A.	Between 40° and 70°
B.	Less than 30°
C.	Greater than 30°
D.	Less than 45°
Answer» C. Greater than 30°

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An angle section can be used as purlin when the slope of the roof truss is _________.

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