EXERCISES 537 (3) tons per inch immersion (4) inch trim moment of a rectangular shaped vessel length 200 ft,, breadth 30 ft., draught 10 ft. Answer.(—1) 7J feet; (2) 666.6 ft.; (3) 14f tons; (4) 204 foot-tons. 47. A rectangular tank 100 feet long, 10 feet broad, 12 feet deep draws 4 feet of water. The tank is divided into five equal watertight compartments, but Nos. 2 and 4 get bilged; find the mean sinkage due to the loss of buoyancy. Answer.—2| feet. A Cargo of Esparto Grass.