Vol.2 Flashcards
What are the three states of matter?
Solids, liquids, and gases
When any force causes a solid to change permanently, the solid is said to have what?
Passed the elastic limit
What is the most outstanding characteristic of a liquid?
It’s ability to conform to the shape of its container
What usually produces flow in a pneudraulic system?
Piston pushing the fluid
Who was among the first to study the compressibility of gases?
Boyle
If 50 psi of cylinder pressure acts on a 5 square-inch piston head, what will the resulting force be?
250 pounds
When a 8 square-inch piston moves 5 inches within a cylinder, what volume of liquid is displaced?
40 cubic inches
How does turbulence affect fluid-flow in a hydraulic line?
By creating resistance and loss of energy
What is a tube whose cross section area is gradually reduced to a smaller size diameter called?
Venturi
What are the purposes of a hydraulic reservoir?
Replenish fluid, allow for thermal expansion, and provide a means of bleeding air from the system
What is the purpose of a standpipe in a reservoir?
Reserve fluid for the emergency pump
What is the amount of fluid a pump produces on each cycle or revolution called?
Displacement
When referring to hydraulic hand pumps, what does double-action mean?
Fluid-flow is created with each stroke of the pump handle
Why do variable-volume pumps not require a separate pressure-regulating device in the system?
They have an integral compensator
What provides for cooler operation in a Stratopower variable-volume hydraulic pump?
Creep plates
In the Stratopower variable-volume pump, what holds the piston in contact with the cam plate?
Nutating plate
What does a hydraulic motor convert hydraulic pressure into?
Rotary mechanical motion
How is the piston installed in an accumulator?
Hollow end towards the air side of the accumulator
What is the size of one micron?
Four millionths of an inch
In a hydraulic system, what does a hydraulic manifold provide?
A location where common fluid lines can come together
What does an actuating cylinder transform fluid pressure into?
A mechanical force
What pneudraulic system component uses a single-acting actuating cylinder?
Brake assembly
What pneudraulic system component uses a double-acting balanced actuating cylinder?
Nosewheel steering
Which actuator type slows down piston travel when the piston nears either end of the cylinder?
Internal snubber
