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1. |
*/*_Boiler draught of 10 mm water column is equivalent to? |
A. | 1 kgf/m² |
B. | 10 kgf/m² |
C. | 10 kgf/mm² |
D. | 1 kgf/mm² |
Answer» C. 10 kgf/mm¬¨‚â§ | |