a) 12t, 16t, where t = thickness of thinner plate
b) 20t, 16t, where t = thickness of thinner plate
c) 16t, 12t, where t = thickness of thinner plate
d) 16t, 20t, where t = thickness of thinner plate

Answer: c
Explanation: Pitch shall not be more than 16t or 200mm, whichever is less in tension member where t is thickness of thinner plate. Pitch shall not be more than 12t or 200mm, whichever is less in compression member, where t is thickness of thinner plate.