engineering recuitment UPPSC AE Mock Test 2024 Construction Materials and Management Miscellaneous Material
Study the following statements concerning the quarrying of rocks and identify the correct combinations of statements.
Statements:
(A): The wedging method is mainly used for rocks of sedimentary type, which is comparatively soft, where all naturally occurring cracks are located and then the steel wedges are driven with the help of a hammer.
(B): In the heating method, the channelling machines driven by steam are used to make vertical or oblique grooves or channels on the rock mass and make rapidly the grooves
1
Both statements are correct.
2
Both statements are incorrect.
3
Statement A is correct but B is incorrect
4
Statement B is correct but A is incorrect