Steel Structure Design - Engineering

Q1:

When plates are exposed to weather, tacking rivets are provided at a pitch in line not exceeding (where t is the thickness of the outside plate).

At

B 16 t

C 24 t

D 32 t

E 48 t

ANS:B - 16 t

But 16t or 200 for tension member and 12t or 200 for compression.

In general 32t or 300 whichever less.