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    Quiz on Chapter 15: Fluid Power Actuators

    April 28, 2007

    Quiz on information learned from chapter 15

    1. A ram cylinder can only have_________________in one direction.

    1. movement
    2. force
    3. rotation

    2. A ram cylinder has:

    1. a piston with seals to guide it
    2. no piston or seals to guide it
    3. a non-sealing guide only

    3. The area of a cylinder is figured with the formula:

    1. F=PA
    2. π r2
    3. π d2

    4. Cylinder force or thrust is figured by the formula:

    1. F=PA
    2. π r2
    3. π d2

    5. A 2:1 area ratio cylinder has a rod that is:

    1. half the diameter of the piston
    2. twice the diameter of the piston
    3. half the area of the piston

    6. A double rod-end cylinder with the same pressure at either end can have:

    1. equal force and speed in both directions of travel
    2. higher force in one direction of travel
    3. either of the above

    7. With the same pressure at either end a single-rod end cylinder has:

    1. equal force in both directions of travel
    2. more force extending
    3. more force retracting

    8. Cable cylinders are:

    1. twice as long as their stroke
    2. three times as long as their stroke
    3. slightly longer than their stroke

    9. Non-Rotating rod cylinders:

    1. allow no radial movement of the piston rod
    2. only allow some radial movement of the piston rod
    3. can allow a lot of radial movement of the piston rod

    10. This symbol is for a:

    1. non-cushioned cylinder
    2. cushion rod end only cylinder
    3. cushion both ends cylinder
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    11. Tandem cylinders can have almost_________________the force as a single cylinder.

    1. twice
    2. three times
    3. four times

    12. Diaphragm cylinders have:

    1. small area and long strokes
    2. large area and long strokes
    3. large area and short strokes

    13. Always size an air cylinder with at least:

    1. 10% more force than required
    2. 25% more force than required
    3. 75% more force than required

    14. A cylinder with an actual 2:1 rod in a regeneration circuit will:

    1. extend twice as fast as retract
    2. extend and retract at the same speed
    3. cannot regenerate a 2:1 rod cylinder

    15. Hydraulic motors are usually rated in:

    1. pounds force
    2. lb-in., lb-ft, or Newton-meters torque
    3. horsepower

    16. Gear on gear hydraulic motors offer:

    1. high-torque/low-speed output
    2. high-speed/low-torque output
    3. high-speed/nominal-torque output

    17. Axial or inline piston motors offer:

    1. high-torque/low-speed output
    2. high-speed/high-torque output
    3. both of the above

    18. Radial piston hydraulic motors offer:

    1. high-torque/low-speed output
    2. high-speed/low-torque output
    3. high-speed/nominal-torque output

    19. Single vane rotary actuators give up to:

    1. 90° rotary output
    2. 180° rotary output
    3. 270° rotary output

    20. This symbol is for a:

    1. hydraulic rotary actuator.
    2. pneumatic rotary actuator.
    3. neither of the above.
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