Gear Ratio Quiz

What is the formula for calculating the gear ratio in a gear system?

• Teeth on Driving Gear / Teeth on Driven Gear

• Teeth on Driven Gear / Teeth on Driving Gear

• Number of Gears / Total Teeth

• Speed of Driven Gear / Speed of Driving Gear

If a driving gear has 10 teeth and the driven gear has 30 teeth, what is the gear ratio?

• 1:3

• 3:1

• 2:1

• 1:2

What happens to torque when the driven gear is larger than the driving gear?

• Torque decreases and speed increases

• Torque increases and speed decreases

• Both torque and speed increase

• Both torque and speed decrease

Diagram showing two gears with a gear ratio of 2:1, where the driving gear has 10 teeth and the driven gear has 20 teeth.

• The driving gear has 5 teeth and the driven gear has 10 teeth.

• The driving gear has 10 teeth and the driven gear has 20 teeth.

• The driving gear has 15 teeth and the driven gear has 30 teeth.

• The driving gear has 20 teeth and the driven gear has 40 teeth.

What is the main characteristic of a Class 1 lever?

• The load is between the effort and fulcrum.

• The fulcrum is between the effort and load.

• The effort is between the fulcrum and load.

• The load and effort are on the same side of the fulcrum.

Which class of lever is exemplified by a wheelbarrow?

• Class 1

• Class 2

• Class 3

• Class 4

In a Class 3 lever, where is the effort positioned?

• Between the load and fulcrum

• Between the fulcrum and load

• At the fulcrum

• At the load

Which class of lever is best represented when using a dolly to lift a load?

• First-class lever

• Second-class lever

• Third-class lever

• Fourth-class lever

What is the formula for calculating the Mechanical Advantage (MA) of a lever?

• MA = Load Arm / Effort Arm

• MA = Effort Arm / Load Arm

• MA = Load Arm + Effort Arm

• MA = Load Arm - Effort Arm

If a lever has an effort arm of 5 meters and a load arm of 1 meter, what is the mechanical advantage (MA)?

• 1

• 2

• 5

• 10