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
A worm gear drives a spur gear. This setup is known for:
Answer: High gear reduction in a small space
Worm gears provide large speed reduction and high torque compactly.
Two containers of water are connected at the bottom. The water level in both will:
Answer: Settle to the same height
Connected liquids seek the same level regardless of container shape.
A nail is easier to pull out with a claw hammer than by hand because the hammer acts as:
Answer: A lever multiplying force
The claw hammer's handle is a lever that magnifies pulling force.
If you double the number of teeth on a driven gear, its rotation speed will:
Answer: Be cut roughly in half
More teeth on the driven gear means slower rotation.
A diver feels more pressure deeper underwater because:
Answer: The weight of water above increases with depth
Water pressure increases with depth due to the weight of water above.
Which arrangement lifts a heavy load with the least effort?
Answer: A multi-pulley block and tackle
A block and tackle with multiple pulleys greatly reduces required effort.
A bimetallic strip bends when heated because the two metals:
Answer: Expand at different rates
Unequal thermal expansion of the two metals causes the strip to bend.