Title: M3L3 Quiz
Course: WIND 150WH Wind Turbine Materials and Electro Mechanical Equipment > Section: WIND 150WH Wind Turbine Materials and Electro Mechanical Equipment

Q: The image above is an example of a/n ________________ - type hydraulic pump.
- double vane
- variable valve
- double gear
- double helix
A: double gear

Q: _________________ occurs in a cylinder when fluid enters the top and pushes the piston down.
- Displacement
- Volumetric pressure
- Transfer power
- Cooling
A: Displacement

Q: What is the name of the pump that gives out a predetermined quantity of fluid for each revolution?
- Hydraulic pump
- Low displacement hydraulic pump
- Positive displacement pump
- Negative displacement pump
A: Positive displacement pump

Q: What type of hydraulic pump is shown above?
- Gear pump
- Lobe pump
- Vane pump
- Arc pump
A: Vane pump

Q: A device that forces fluid to flow in a required direction is called a ____________.
- flow device
- variable flow device
- coupled device
- directional control device
A: directional control device

Q: A valve in a hydraulic system that consists of a ball, or poppet, and is designed to allow fluid to flow in only one direction (thus
preventing backflow) is called a ___________.
- lobe valve
- directional valve
- check valve
- ball valve
A: check valve

Q: The images above are the internals of ______________.
- ball valves
- slip valves
- check valves
- springing ball valves
A: check valves

Q: In the image above, hydraulic piston A has a diameter of 2 inches and can travel into its cylinder a length (l_1) of 5 inches. Piston B has a diameter of 4.5 inches. If piston A is forced all the way down into its cylinder (the full 5 inches), how far does piston B move upward (i.e. find l_2)?
- About 2 inches
- Almost 1.5 inches
- Almost an inch
- A little more than a 3 inches
A: Almost an inch

Q: Referring to the previous question, if 10 pounds of force is applied to the first cylinder, how much up force would be on the
secondary cylinder?
- About 5 pounds
- A little more than 50 pounds
- A little less than 25 pounds
- The same amount: 10 pounds
A: A little more than 50 pounds

Q: Referring to the image above, what device could be used to prevent the secondary cylinder fluid from back feeding into the primary
cylinder?
- Stop valve
- Ball valve
- Check valve
- Reducer
A: Check valve