Mechanical Aptitude and Principles Flashcards
7 cards from real CPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Mechanical Aptitude and Principles flashcards as text
Water flowing through a hose is forced into a narrower nozzle. What happens to the water's speed at the nozzle?
Answer: It speeds up
When fluid passes from a wide pipe into a narrow opening, its velocity increases (continuity principle).
Two people carry a load on a pole between them. To make one person bear more weight, the load should be moved how?
Answer: Closer to that person
Moving the load closer to one person shortens that person's lever arm, placing more weight on them.
What is the mechanical advantage of a pulley system with four supporting rope segments?
Answer: 4
Mechanical advantage of a block and tackle equals the number of rope segments supporting the load, here four.
A bimetallic strip bends when heated because the two metals do what?
Answer: Expand by different amounts
The two metals expand at different rates when heated, causing the strip to bend.
If a wrench handle is made longer, the force you can apply to turn a bolt does what?
Answer: Increases
A longer handle increases the lever arm, multiplying the torque applied to the bolt.
Which of these would float in water?
Answer: A sealed empty plastic bottle
A sealed empty bottle is less dense than water because of the trapped air, so it floats.
In a system of meshed gears, two gears that touch directly will rotate in which directions relative to each other?
Answer: Opposite directions
Directly meshed gears always turn in opposite directions to each other.