Fluid Power

Which of the following fluid power behaves like a spring, and needs to be lubricated?

• Pneumatic Power
• Hydraulic Power
• Horse Power
• Gay-Lussac Power

Which of the following does NOT describe hydraulic power?

• Primarily used for operations that require 500-5000 psi
• Self-Lubricating
• Have a slower, smoother motion
• Not as precise as pneumatics

Which of the following variables are NOT part of the perfect gas laws?

• Absolute Pressure (p)
• Volume (V)
• Absolute Temperature (T)
• Cross-Sectional Area (A)

What is the absolute Temperature, when a thermometer measures a gas at 74^oF? 

• 534^oR
• 347^oR
• 74^oR
• 88.7^oR

When you heat up a gas.

• The volume goes down (contracts)
• There is no affect on volume
• The volume goes up (expands)

What is the absolute Pressure, when a gauge measures a gas at 74 psi? 

• 534 psi
• 347 psi
• 74 psi
• 88.7 psi

A cylinder is filled with 40. in^3 of air at a pressure of 46. psi. The cylinder is compressed to 10. in^3. What is the resulting absolute pressure

• 243 psi
• 184 psi
• 11.5 psi
• 257.5 psi

A high pressure balloon is filled with 100 in^3 of air and is sitting in cold water that is 40°F. The container is removed from the icy water and is heated to 200.°F.  What is the resulting Volume?

• 132 in^3
• 500 in^3
• 393 in^3
• 260 in^3

A tire has a constant volume and pressure of 25 psi at 40^oF. After driving, the pressure of the tire is 30 psi. What is the new temperature of the tire?

• 103^oF
• 90^oF
• 48^oF
• 45^oF

What is the force required to push a 2 in. diameter cylinder to overcome 314 psi?

• 100 lbs
• 50 lbs
• 3944 lbs
• 986 lbs