IS 800 is the basic Code for general construction in steel structures, In this after 3rd revision the following major modifications have been effected: Which one is true ?
1
The standard is based on Working stress method, reflecting the latest developments and the state of the art.
2
The standard has made reference to the Indian Standards now available for bolts only.
3
In view of the development and production of new varieties of medium and high tensile structural steels in the country, the scope of the standard has been modified permitting the use of any variety of structural steel provided the relevant provisions of the standard are satisfied.
4
The standard has made reference to the Indian Standards now available for rivets only.
5
Question Not Attempted