Applied Hydraulics & Pneumatics

Which of the following statements explains fluid power.

• Fluid power is the method of using pressurized fluid to transmit motion.

• Fluid power is the method of using pressurized fluid to transmit energy

• Fluid power is the method of using pressurized fluid to transmit machines

• Fluid power is the method of using pressurized air to transmit energy

The basic idea behind any hydraulic system is very simple: Force that is applied at one point is trasmitted to another point using________

• A compressible fluid

• An incompressible fluid

• A cold compress

• A hot compress

Where can you look on your car to see a good example of a basic piston-driven hydraulic system?

• The power steering system

• The brake system

• The instrument panel

• The radio system

Large hydraulic machines usually have these to hold the difference in the volume of oil displaced by the two sides of the cylinder

• Large diameter lines

• Extra piston

• External reservoirs

• Men with buckets

Which pump uses an impeller?

• Piston pump

• Vane pump

• Gear pump

• Non-positive-displacement pump

What pushes oil into a positive-displacement pump's inlet?

• Pilot oil

• Atmospheric Pressure

• Case pressure

• Signal pressure

Which of the following has a high volumetric efficiency?

• Gear pump

• Vane pump

• Piston pump

• All pumps have equal volumetric efficiency

During operation, where does the majority of oil travel in an external-toothed gear pump?

• Between the two meshing gears

• Around the outside periphery

• Both A and B

• Neither A nor B

Which of the following styles of pumps uses a swash plate?

• Bent-axis piston pump

• Rotating-cam radial piston pump

• Inline axial piston pump

• Rotating-piston radical piston pump

In a simple enclosed hydraulic system with pistons of different surface area, which requires the most force to move it?

• The larger Piston

• The smaller Piston

• The force required to move each piston will be equal.

• Neither can move due to incompressibility of fluid.