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  5. ASVAB Section 3: Mechanical Comprehension

Free ASVAB Section 3: Mechanical Comprehension Exam Braindumps (page: 17)

Page 16 of 47
PDF with 187 Questions

If Gear A is revolving in a clockwise manner, as seen in the figure above, Gear B ____________.

  1. remains stationary
  2. revolves in a clockwise manner
  3. revolves in a counterclockwise manner
  4. turns more slowly than Gear A

Answer(s): C

Explanation:

Meshed gears always turn in opposite directions.



Springs are used for the following purposes EXCEPT ____________.

  1. to store energy for part of a mechanical cycle
  2. to force a mechanical component to maintain contact with another component
  3. to reduce shock or impact
  4. to increase the weight of a mechanism

Answer(s): D

Explanation:

Springs are used for all the listed purposes except to add weight.



The floats in Tubes A and B measure specific gravity.
Which tube contains the liquid with the higher specific gravity?

  1. Tube A
  2. Tube B
  3. It can’t be determined.
  4. Both Tube A and Tube B have the same specific gravity.

Answer(s): B

Explanation:

Specific gravity is a comparison between the weight of a liquid and the weight of water. The liquid with the higher specific gravity will have a float that rises higher.



Universal joints are used to ____________.

  1. connect ball bearings
  2. fix two shafts so they don’t pivot or rotate
  3. connect shafts in a U-shape
  4. couple two shafts set at different angles

Answer(s): D

Explanation:

Universal joints are used to connect shafts that aren’t in the same plane.






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