Pre/Post Test Unit 8

 

  1. Which of the following is not a method of transferring power from a shaft to a gear?
    1. Shaft with a Keyway
    2. Spline Shaft
    3. Hexagonal Shaft
    4. E-Clip Shaft
  2. What style shaft does the VEX Design system use?
    1. Keyed
    2. Round
    3. Square
    4. Hexagonal
  3. Spur gears transfer motion between two _________ shafts.
    1. Perpendicular
    2. Parallel
    3. Collinear
    4. Intersecting
  4. Bevel gears are a _______ shape.
    1. Conical
    2. Spherical
    3. Cylindrical
    4. Hexagonal
  5. Crown gears are a type of _______ gear.
    1. Bevel
    2. Spur
    3. Helical
    4. Worm
  6. Worm gears transfer power between _______ shafts.
    1. Parallel
    2. Perpendicular
    3. Collinear
    4. Intersecting
  7. Which of the following gears is not part of a planetary gear set?
    1. Planet
    2. Sun
    3. Ring
    4. Helical
  8. What is the name of the gear that mates with a pinion gear?
    1. Planetary
    2. Spur
    3. Rack
    4. Helical
  9. What is the diametral pitch of a VEX spur gear?
    1. 16
    2. 20
    3. 24
    4. 36
  10. If a 12 tooth input spur gear is spinning at 100 RPM, what is the output speed of the 60 tooth gear it is meshed with?
    1. 20 RPM
    2. 40 RPM
    3. 250 RPM
    4. 500 RPM
  11. If there are three spur gears meshed together in a row, what is the middle gear called?
    1. Input
    2. Output
    3. Idler
    4. Driven
  12. If you want the input gear to spin in the same direction as the output gear you must use a _______ gear.
    1. Spur
    2. Bevel
    3. Driven
    4. Idler
  13. What is the final gear reduction of a compound gear reduction of 36 to 12 for the first stage and 60 to 12 for the second stage?
    1. 0.067
    2. 0.533
    3. 8
    4. 15
  14. _______ are used for mechanical power transmission over long distances
    1. Spur Gears
    2. Helical Gears
    3. Planetary Gears
    4. Chain and Sprockets
  15. Mechanical power transmission ratios for Belts and Pulleys systems are calculated using _______.
    1. Belt Length
    2. Pulley diameters
    3. Pitch Length
    4. Number of teeth 

 

See this knowledgebase article for the answers to this test.