If t is the thickness of a thinner plate in a bolted connection of tension member, then the pitch shall not be more than
- A16t or 200 mm, whichever is lessCorrect
- B16t or 200 mm, whichever is more
- C12t or 150 mm, whichever is less
- D12t or 150 mm, whichever is more
Solution
Concept
Maximum pitch (IS 800 cl. 10.2.3)
Formula
p ≤ min(16t, 200 mm)
Step-by-step solution
1. Maximum pitch in tension: 16t or 200 mm, whichever is less. 2. In compression: 12t or 200 mm, whichever is less.
Explanation
Closer spacing keeps the plates in contact and prevents local buckling and corrosion.
Why the other options are wrong
"Whichever is more" would allow wider spacing than intended; 12t or 150 mm is not the tension limit.
Shortcut
Tension 16t/200; compression 12t/200.
Common mistake
Choosing 12t.
Correct answer: A) 16t or 200 mm, whichever is less