Comprehension Flashcards
7 cards from real Bennett Mechanical Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Comprehension flashcards as text
Two gears mesh together. If the driver gear turns clockwise, which way does the driven gear turn?
Answer: Counterclockwise
Meshing gears always rotate in opposite directions.
A lever has its load close to the fulcrum and effort far away. What does this arrangement provide?
Answer: A mechanical advantage that reduces effort needed
A longer effort arm relative to the load arm reduces the force required.
Water flows through a pipe that narrows. What happens to the water's speed in the narrow section?
Answer: It increases
The same volume forced through a smaller area must move faster.
Which surface produces the most friction when an object slides across it?
Answer: Rough concrete
Rougher surfaces create more friction than smooth or lubricated ones.
A pulley system uses two supporting rope sections to lift a load. How does this affect the effort needed?
Answer: It roughly halves the effort
Each supporting rope section shares the load, reducing required effort.
Hot air inside a sealed balloon will cause the balloon to do what?
Answer: Expand and rise
Heated air expands and becomes less dense, causing it to rise.
If a wrench handle is made longer, turning a tight bolt becomes:
Answer: Easier
A longer handle increases torque, making the bolt easier to turn.