

MCQOPTIONS
Saved Bookmarks
1. |
What is the dry compression strength of core sand mixture for general purpose? |
A. | 50 kg/cm<sup>2</sup> |
B. | 60 kg/cm<sup>2</sup> |
C. | 70 kg/cm<sup>2</sup> |
D. | 80 kg/cm<sup>2</sup> |
Answer» D. 80 kg/cm<sup>2</sup> | |