ASVAB-SECTION-3 Online Practice Questions and Answers

When Cam A completes one revolution, the lever will touch the contact point __________.

A. once

B. never

C. four times

D. twice

If a house key, a wooden spoon, a plastic hanger, and a wool jacket are all the same temperature, which one feels the coldest?

A. key

B. spoon

C. hanger

D. jacket

A runner is being used in the figure shown.

How much effort (disregard friction, wind resistance, and the weight of the pulley and the rope) is using the cat lover lifting the 50-pound crate (with cat)?

A. 50-pound effort

B. 100-pound effort

C. 25-pound effort

D. 10-pound effort

If Gear 1 makes 10 complete clockwise revolutions per minute in the figure above, then __________.

A. Gear 2 makes 10 complete clockwise revolutions per minute.

B. Gear 2 makes 20 complete counterclockwise revolutions per minute.

C. Gear 2 makes 5 complete counterclockwise revolutions per minute.

D. Gear 3 keeps Gear 2 from making any revolutions.

How can a gear system derive the greatest amount of mechanical advantage when a seven-tooth gear drives a ___________?

A. 29-tooth gear

B. 5-toothgear

C. 24-tooth gear

D. 17-tooth gear

Weight is directly proportional to the acceleration due to ___________.

A. friction

B. elastic recoil

C. viscous drag

D. gravity

An elevator is most similar to which of the following mechanical devices?

A. a spring

B. a hydraulic jet

C. a lever

D. a crane

Which is the best description of centrifugal force?

A. the force responsible for the changes made to water during distillation.

B. the response of bodies with inertia to the straight-moving or curved behavior of their container.

C. the force by which bodies are propelled forward.

D. the relationship between two opposing forces.