1. One leg of a mercury U-tube manometer is con- nected to a pipe containing water under a gage pressure of 100 kPa. The mercury in this leg stands 750 mm be- low the water. What is the height of mercury in the other leg, which is open to the air? The specific gravity of mercury is 13.5. 100 kPa water 750 mm mercury (A) 0.2 m (B) 0.5 m (C) 0.8 m (D) 1 m 2. A pressure of 35 kPa is measured 4 m below the sur- face of an unknown liquid. What is the specific gravity of the liquid? (A) 0.09 (B) 0.89 (C) 0.93 (D) 1.85