As per IS 800:2007, the minimum pitch (centre-to-centre distance) between bolts in the direction of load is:

Why is this the answer?

As per IS 800:2007 Clause 10.2.2, the minimum pitch between bolts shall not be less than 2.5 times the nominal diameter of the bolt.

Related Steel Structures MCQs

More solved Steel Structures questions for AE/JE Civil Engineering exams.

• The 'residual stresses' in hot-rolled steel sections arise from:
• The 'effective slenderness ratio' for a single angle compression member (IS 800)...
• 'Fatigue failure' in steel structures occurs under:
• The 'tension field action' in a plate girder web after buckling means:
• Bolts in 'slip-critical' (HSFG) connections resist load by:
• The 'portal frame analysis' approximation for multi-storey frames under horizontal load...