Q1.
Consider the following statements:
1. There will be no defects in select grade timbers.
2. The codal values for strength of grade-II timber without defects may be reduced by 37.5%.
3. For timber used as columns, the permissible stress in ungraded timbers is adopted with a multiplying factor of 0.50.
4. In case of wind force and earthquakes, a modification factor of 1.33 is adopted.
Which of the above statements are correct?
- (a) 1 and 3 only
- (b) 1 and 4 only
- (c) 2 and 4 only
- (d) 2 and 3 only