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  4. ASVAB Section 3: Mechanical Comprehension

Free ASVAB Section 3: Mechanical Comprehension Exam Braindumps
ASVAB Section Three : Mechanical Comprehension Questions 36–40 (page: 9)

Updated On: 9-Feb-2026
Page 9 of 39
PDF with 187 Questions

For Gear A and Gear B to mesh properly in the figure above ______________.

  1. They must be the same size.
  2. They must turn at different rates.
  3. They must both turn in the same direction.
  4. Their teeth must be of equal size.

Answer(s): D

Explanation:

Gears of unequal size can mesh properly as long as their teeth are of equal size.



Torsion springs __________.

  1. produce a direct pull
  2. exert no pull
  3. produce a twisting action
  4. coil but do not uncoil

Answer(s): C

Explanation:

Torsion springs coil or uncoil and produce a twisting action, not a direct pull.



To move a 400-pound crate from the floor of a warehouse to the bed of a truck 4-feet off the ground, the most efficient device to use is a _______________.

  1. lever
  2. incline plane
  3. fixed pulley
  4. jackscrew

Answer(s): B

Explanation:

To move a heavy object a few feet in height, the incline plane is the most efficient device (of those listed) to use.



Water in an engine can cause damage in winter weather because ____________ .

  1. it can vaporize
  2. water expands when it freezes
  3. ice is heavier than water
  4. cold water creates more steam than warm water

Answer(s): B

Explanation:

Water expands when it freezes, possibly damaging engine components.



The weight of the load is being carried on the backs of the two cats shown in the figure. Which cat is carrying the most weight?

  1. Cat A
  2. Cat B
  3. Both are carrying an equal amount of weight.
  4. It can’t be determined without more information.

Answer(s): A

Explanation:

The load is closer to Cat A, so he’s carrying the greater portion of the weight.



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