The first loading standard in India was published by the IRC in the year _______
- A1947
- B1950
- C1958Correct
- D1972
Solution
Concept
IRC published its first loading standard 1958
Step-by-step solution
1. IRC was formed in 1934. 2. The first loading standard for road was published in 1958. 3. It was later revised in 1966, 1972 and so on. 4. So the answer is 1958.
Explanation
The first IRC standard for bridge loading came out in 1947. Later revisions, such as 1958 and 1972, updated the loads. The first one is the earliest year in the list.
Why the other options are wrong
B: 1950 is not the year of first publication. C: 1958 was a revision. D: 1972 was a later revision.
Shortcut
First = earliest year given, 1947.
Common mistake
Confusing the first edition with later revisions.
Correct answer: C) 1958