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Q: _______ are mainly used as tension members in the bracing system.
  • A. Channel section
  • B. Built-up frame
  • C. I section
  • D. Bars
Correct Answer: Option D - Rods and Bars- Bars and rods are frequently used as tension members in bracing system and as sag rods to support purlins between trusses.
D. Rods and Bars- Bars and rods are frequently used as tension members in bracing system and as sag rods to support purlins between trusses.

Explanations:

Rods and Bars- Bars and rods are frequently used as tension members in bracing system and as sag rods to support purlins between trusses.