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
A pump must lift water to a higher floor. Doubling the height the water must be raised does what to the work required?
Answer: Doubles it
Work against gravity is proportional to height, so doubling the height doubles the work.
Two ropes support a hanging load at equal angles. If the angle each rope makes with vertical increases, the tension in each rope does what?
Answer: Increases
Spreading the ropes to wider angles increases the tension each must carry to support the same load.
A screw is essentially which simple machine wrapped around a cylinder?
Answer: An inclined plane
A screw is an inclined plane wrapped around a cylinder, forming its threads.
When a moving fire truck brakes suddenly, loose equipment slides forward because of?
Answer: Inertia
Inertia keeps the equipment moving forward even as the truck decelerates.
Which of these increases the friction between a ladder's feet and the ground?
Answer: Rubber feet
Rubber feet grip the surface and increase friction, helping prevent the ladder from slipping.
In a sealed container, if the temperature of a trapped gas rises while volume stays fixed, the pressure will?
Answer: Increase
At constant volume, heating a gas raises its pressure as the molecules move faster and strike the walls harder.
A counterweight is added to a system to do what?
Answer: Balance or offset a load
A counterweight balances or offsets a load, reducing the effort needed to move it.