Unit 2 Hon Eng Des 1/2

What is the gear ratio if a gear with 20 teeth drives a gear with 40 teeth?

• 1:2

• 2:1

• 1:1

• 0.5:1

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

• 0.2

• 1

• 5

• 10

Which of the following is NOT a type of simple machine?

• Lever

• Pulley

• Gear

• Inclined Plane

A compound machine is made up of a lever and a pulley. What is the primary function of this machine?

• 1. 1 - To increase speed

• 2 - To change the direction of the force

• 3 - To decrease force

• Both 1 and 2

What is the mechanical advantage of a pulley system with 4 supporting ropes?

• 2

• 3

• 4

• 5

If a gear system increases the speed, what happens to the torque?

• It increases

• It decreases

• It remains the same

• It becomes zero

What mechanism is typically used to convert rotational motion into linear motion?

• Lever

• Gear

• Cam and follower

• Pulley

If a screw has a pitch of 1 mm and a length of 10 mm, how many turns does it take to fully drive the screw in?

• 10

• 100

• 1000

• 1

What is the gear ratio for a system where the input gear has 10 teeth and the output gear has 50 teeth?

• 5:1

• 1:5

• 10:50

• 1:1