1. Assume two liquids in an open U shaped tube (manometer) are water and oil. What is the density of the oil if the water level is 17.5 cm above the interface and the oil is 22.2 cm above the interface?
Oil Density =
2.An on-farm diesel fuel tank is on a stand 5 feet above the ground. The tank is vented to the atmosphere (the air in the tank is at atmospheric pressure). If the diesel level in the tank is 3.5 feet above the release point. If the density of diesel is 6.98 pounds/gallon, what is the gauge pressure of the fuel at the nozzle?
What is the absolute pressure?
Gauge Pressure =
Absolute Pressure =
3.An open U shaped tube (manometer) has a 1 cm2 cross section opening. What volume of water must be poured into the right tube to cause the mercury to rise 2 centimeters above its original position?
Water Volume =
4.
What volume of water has the same mass as 70 cm3 of lead?
Water Volume =
5.
A 204 mL flask is filled with an unknown liquid. An electronic balance indicates that the added liquid has a mass of 179 grams. What is the specific gravity of the liquid?
Specific Gravity =
6.A cube of wood 3 cm on each edge floats in water with three fourths of its volume submerged. What is the weight, mass and specific gravity of the wooden cube?
Weight =
Mass =
Specific Gravity =
7.The weight of a piece of rock is found to be 78 N in air. When the rock is submerged in a fluid of density 890 kg/m3, its apparent weight is only 66 N. What is the density of the rock?
Rock Density =
8.
What is the smallest area of ice 30 cm thick that will support a 75 kg man? The ice is floating in freshwater.
Area =
9.
The diameters of the small and large pistons in a hydraulic press are 1.7 and 6.2 inches, respectively. What is the ideal mechanical advantage of the press? What must the input force be to give an output force of 2.03 tons?
Ideal Mechanical Advantage =
Input Force =
10.
A force of 380 N is applied to the small piston of a hydraulic press whose diameter is 5 cm. What must be the diameter of the large piston if it is to lift a 240 kg load?
Output Diameter =