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
Two gears are meshed together. If the driving gear has 10 teeth and the driven gear has 30 teeth, how does the driven gear turn compared to the driver?
Answer: Three times slower
A larger driven gear turns slower in proportion to its tooth count, so 30/10 means it turns three times slower.
A first-class lever has the fulcrum located where?
Answer: Between the effort and the load
In a first-class lever, like a seesaw, the fulcrum sits between the effort and the load.
Which simple machine is a doorknob an example of?
Answer: Wheel and axle
A doorknob turns a small shaft (axle) using a larger wheel, making it a wheel and axle.
If you increase the length of a ramp while keeping the same height, what happens to the effort needed to push a load up it?
Answer: It decreases
A longer ramp reduces the slope, decreasing the effort required to move the load up.
In a hydraulic system, pressure applied to a confined fluid is transmitted how?
Answer: Equally in all directions
Pascal's principle states that pressure on a confined fluid is transmitted equally in all directions.
A fixed pulley attached to a ceiling primarily changes what?
Answer: The direction of the force
A single fixed pulley changes the direction of the applied force but does not reduce the effort needed.
Which material would conduct heat fastest, an important factor for firefighters handling tools?
Answer: Copper
Copper is a metal and an excellent heat conductor compared to insulators like wood, rubber, or plastic.