Engineering Board Exam Reviewer · Fluid Mechanics · medium
What is the absolute pressure at a depth of 20 m in seawater (SG = 1.03)? (P atm = 101.325 kPa)
- 202.09 kPa
- 297.53 kPa
- 303.41 kPa
- 100.76 kPa
Answer
C. 303.41 kPa
Solution
P = P atm + h = 101.325 + 1.03(9.81)(20) = 303.41 kPa.
More Fluid Mechanics questions
- What is the gauge pressure at a depth of 5 m in an oil with a specific gravity of 0.8?
- What is the speed of sound in water with a bulk modulus of 2.2 GPa and density 1000 kg/m3?
- Water has a bulk modulus of 2.2 GPa. What pressure increase is required to reduce its volume by 1%?
- What is the pressure inside a water droplet 1 mm in diameter in excess of the outside pressure? ( = 0.0728 N/m)
- What is the capillary rise of water in a clean glass tube 1 mm in diameter? ( = 0.0728 N/m, contact angle = 0°)
- A 0.5 m2 plate slides at 1.5 m/s over a 3 mm layer of oil ( = 0.08 Pa· s) on a fixed surface. What force is needed to keep it moving?…
- A plate moves at 2 m/s over a fixed plate separated by a 2 mm film of oil with = 0.05 Pa· s. Assuming a linear velocity profile, what is…
- An oil has a dynamic viscosity of 0.1 Pa· s and a density of 900 kg/m3. What is its kinematic viscosity?
- A liquid has a density of 1200 kg/m3. What is its specific volume?
- What is the mass of 200 liters of oil with a specific gravity of 0.82?