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ASVAB MECHANICAL COMPREHENSION (PULLEY) EXAM
QUESTIONS
Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -16 Questions and Answers
-Format: Multiple-choice / Flashcard
Question 1: Fixed pulley
Answer:
Mechanical advantage is 1; this machine changes the direction of force.
Question 2: Movable pulley
Answer:
This pulley moves with the load. With this load you have a mechanical advantage of 2; this means that you can apply half the force of the object to move it.
Question 3: Gears
Answer:
Small wheels with teeth that mesh with other toothed wheels.
Question 4: Two wheeled pulley system
Answer:
By inserting a second pulley into the system, you now have the ability to disperse the weight of the object between two pulleys.
Question 5: Gear reduction
Answer:
When gears reduce the speed of machinery.
Question 6: 2nd class lever
Answer:
The load is in between the effort and the fulcrum.
Question 7: 1st class lever
Answer:
The fulcrum is located in between the load and the effort.
Question 8: Compound pulley
Answer:
This pulley system blends several fixed or move able pulleys to maximize mechanical advantage.
Question 9: Mechanical advantage
Answer:
Enables people to exert less force by allowing simple machinery to do work for them.
Question 10: One wheeled pulley system
Answer:
Instead of having to push the weight straight up in the air, this pulley allows you to use a downward pulling motion.
Question 11: Bevel gears
Answer:
Their main function is to change the direction of rotation.
Question 12: Worm gear
Answer:
Used when a very high gear reduction is needed; most commonly found on conveyor systems.
Question 13: Driving gear
Answer:
One that is motorized by some force.
Question 14: 3rd class lever
Answer:
For this type of lever to work properly, the fulcrum is usually attached to the lever.
Question 15: Lever
Answer:
A simple machine with a rigid bar that pivots on a fixed point.
Question 16: Fulcrum
Answer:
The object on which a lever pivots.
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