Question 1
The diagram shows five gears. If gear B turns as shown, then the gears turning in the same direction are
Correct Answer:
D and E.
Explanation:
Correct answer/key from source: D and E.. Original option text was not included.
Question 2
What is the theoretical mechanical advantage in using this lever?
Correct Answer:
3
Explanation:
Correct answer: 3
Question 3
A wrench is used to turn a bolt that has 20 threads per inch. After 15 complete turns of the wrench, the bolt will have moved
Correct Answer:
See solution for the supported answer
Explanation:
If the bolt has 20 threads per inch, each time the wrench makes one complete turn, the bolt will move 1/20 inch. So if the wrench makes 15 complete turns, the bolt will move 1/20 × 15 = 15/20 = 3⁄4 inch
Question 4
A gear and pinion have a ratio of 5 to 1. If the gear is rotating at a speed of 150 revolutions per minute (rpm), the speed of the pinion is most nearly
Correct Answer:
750 rpm.
Explanation:
Correct answer: 750 rpm.
Question 5
In the diagram, water is flowing from left to right. What is true of the water after it enters the 3-inch pipe?
Correct Answer:
Its pressure increases, but its speed decreases.
Explanation:
Correct answer: Its pressure increases, but its speed decreases.
Question 1
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About this Exam

Prepare with the ASVAB Mechanical Comprehension Practice Test 2026 (Free PDF) practice quiz. This question bank includes 25 questions covering gear, rotating, water, diagram, and tank. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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ASVAB Mechanical Comprehension Practice Test 2026 (Free PDF)

This practice set contains 25 questions from the matching question bank and focuses on gear, rotating, water, diagram, and tank. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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