Fluid Mechanics
ENT 310 Fluid Mechanics Midterm #1 – Open Book and Notes
Name _______________________
1. (5 pts) The maximum pressure that can be developed for a certain fluid power cylinder is 50.0 MPa. Compute the force it can exert if its piston diameter is 100 mm.
2. (5 pts) Calculate the weight (in Newtons) of 100 liters of fuel oil if it has a mass of 900 Kg.
3. (5 pts) The fuel tank of a truck holds 0.20 cubic meters. If it is full of gasoline having a specific gravity of 0.68, calculate the weight of the gasoline.
4. (10 pts) A cylindrical container has a 12 in. diameter and weighs 1.50 lbs when empty. When filled to a depth of 10.0 inches with a certain oil, it weights 46.9 lb. Calculate the specific gravity of the oil.
ENT 310 Fluid Mechanics Midterm #1
Page 1
ENT 310 Fluid Mechanics Midterm #1 – Open Book and Notes
Name _______________________
5. (5 pts) Define the term terminal velocity as it applies to a falling ball viscometer.
6. (5 pts) Convert a viscosity measurement of 7.8 x 10-4 Pa-s to the units of lb-s/ft2.
7. (10 pts) In a falling ball viscometer, a steel ball with a diameter of 0.25 inches is allowed to fall freely in a heavy fuel oil having a specific gravity of 0.86. Steel weighs 0.283 lb/in3. If the ball is observed to fall 12.00 inches in 10.4 seconds, calculate the dynamic viscosity of the oil in lb-s2/ft.
ENT 310 Fluid Mechanics Midterm #1
Page 2
ENT 310 Fluid Mechanics Midterm #1 – Open Book and Notes
Name _______________________
8. (5 pts) A submarine is submerged at a depth of 400 feet (in seawater having a specific gravity of 1.030). What is the pressure on the submarine at this depth?
9. (5 pts) A water storage tank is on the roof of a factory building, and the surface of the water is 75.0 ft above the floor of the factory. If a pipe connects the storage tank to the floor level and the pipe is full of static water, what is the pressure in the pipe at floor level?
10. (10 pts) The following
Name _______________________
1. (5 pts) The maximum pressure that can be developed for a certain fluid power cylinder is 50.0 MPa. Compute the force it can exert if its piston diameter is 100 mm.
2. (5 pts) Calculate the weight (in Newtons) of 100 liters of fuel oil if it has a mass of 900 Kg.
3. (5 pts) The fuel tank of a truck holds 0.20 cubic meters. If it is full of gasoline having a specific gravity of 0.68, calculate the weight of the gasoline.
4. (10 pts) A cylindrical container has a 12 in. diameter and weighs 1.50 lbs when empty. When filled to a depth of 10.0 inches with a certain oil, it weights 46.9 lb. Calculate the specific gravity of the oil.
ENT 310 Fluid Mechanics Midterm #1
Page 1
ENT 310 Fluid Mechanics Midterm #1 – Open Book and Notes
Name _______________________
5. (5 pts) Define the term terminal velocity as it applies to a falling ball viscometer.
6. (5 pts) Convert a viscosity measurement of 7.8 x 10-4 Pa-s to the units of lb-s/ft2.
7. (10 pts) In a falling ball viscometer, a steel ball with a diameter of 0.25 inches is allowed to fall freely in a heavy fuel oil having a specific gravity of 0.86. Steel weighs 0.283 lb/in3. If the ball is observed to fall 12.00 inches in 10.4 seconds, calculate the dynamic viscosity of the oil in lb-s2/ft.
ENT 310 Fluid Mechanics Midterm #1
Page 2
ENT 310 Fluid Mechanics Midterm #1 – Open Book and Notes
Name _______________________
8. (5 pts) A submarine is submerged at a depth of 400 feet (in seawater having a specific gravity of 1.030). What is the pressure on the submarine at this depth?
9. (5 pts) A water storage tank is on the roof of a factory building, and the surface of the water is 75.0 ft above the floor of the factory. If a pipe connects the storage tank to the floor level and the pipe is full of static water, what is the pressure in the pipe at floor level?
10. (10 pts) The following