1. What is the Center of Buoyancy? a) It is the Center of Gravity of a submerged body. b) It is the centroid of a floating body. It is the gravity center of the body submerged under the fluid. of 2 d) It is the centroid of the mass of the fluid displaced by a floating or submerged body. 2. For the pontoon in your experiment to be in static equilibrium, which of the following must be true? Center of Gravity is above Metacenter b) Metacenter is above Center of Gravity. c) Metacenter and Center of Gravity should be the same. d) Center of Buoyancy should be above Center of Gravity. 3. How did you measure the flow rate of the jet when doing "Impact of a Jet" experiment? (10 points) 10 a) The flow rates are given. There is no need to measure them. b) It is measured by a flow gage on the inlet pipe leading to the nozzle. c) It is measured by a flow meter installed on the target plate. (d), It is measured by closing the ball valve and measuring the time taken to accumulate a known volume of fluid in the tank. 4. During your "Free Jet Impact" experiment with a 45 deflector, you accumulated 3 liters of water in the bench tank within a time interval of 8.69 seconds. The nozzle diameter is 8 mm. Assume there is no vertical distance between the top of nozzle and the tip of 45 deflector, calculate (a) the impact force of water jet impact on the deflector; (20 points) and (b) how much error of the impact force away from the weight of the mass (70 grams) sitting on the weigh pan? (5 points)