FCTC FCTC Test Pulleys, Gears, and Levers Questions and Answers 2

Question 1

A fixed pulley attached to the ceiling is used to lift a 200-lb load. Ignoring friction, how much force must be applied to the rope?

Accepted Answer

200 lb

Answer

100 lb

Answer

150 lb

Answer

400 lb

Question 2

Two gears are meshed together. Gear A has 30 teeth and Gear B has 10 teeth. If Gear A rotates at 60 RPM, how fast does Gear B rotate?

Accepted Answer

180 RPM

Answer

20 RPM

Answer

60 RPM

Answer

120 RPM

Question 3

Which class of lever has the effort between the fulcrum and the load?

Accepted Answer

Class 3

Answer

Class 1

Answer

Class 2

Answer

Class 4

Question 4

A block-and-tackle system uses 4 rope segments supporting the load. What is the mechanical advantage?

Accepted Answer

4

Answer

2

Answer

8

Answer

1

Question 5

On a Class 1 lever, the fulcrum is positioned very close to the load. What is the effect on effort and distance?

Accepted Answer

Less effort, greater distance moved

Answer

Less effort, shorter distance moved

Answer

More effort, greater distance moved

Answer

More effort, shorter distance moved

Question 6

A wheel-and-axle is a simple machine related to which other simple machine?

Accepted Answer

Lever

Answer

Pulley

Answer

Wedge

Answer

Inclined plane

A fixed pulley attached to the ceiling is used to lift a 200-lb load.Ignoring friction, how much force must be applied to the rope?