FCTC FCTC Test Pulleys, Gears, and Levers Questions and Answers 3

Question 1

A movable pulley is attached to a load weighing 300 lb. Ignoring friction, how much force is needed to lift it?

Accepted Answer

150 lb

Answer

300 lb

Answer

75 lb

Answer

600 lb

Question 2

Gear X (20 teeth) drives Gear Y (60 teeth). If Gear X makes 90 RPM, what is the torque relationship between the gears?

Accepted Answer

Gear Y has more torque than Gear X

Answer

Gear Y has less torque than Gear X

Answer

Both gears have equal torque

Answer

Torque cannot be determined from this information

Question 3

A crowbar is being used to pry open a crate. The fulcrum is near the crate (load). What class lever is this?

Accepted Answer

Class 1

Answer

Class 2

Answer

Class 3

Answer

Class 0

Question 4

A compound pulley system requires 50 lb of effort to lift a 200-lb load. What is the mechanical advantage?

Accepted Answer

4

Answer

2

Answer

8

Answer

0.25

Question 5

Which type of lever is a wheelbarrow an example of?

Accepted Answer

Class 2

Answer

Class 1

Answer

Class 3

Answer

None of the above

Question 6

Two gears rotate in mesh. Gear A turns clockwise. In which direction does Gear B turn?

Accepted Answer

Counterclockwise

Answer

Clockwise

Answer

It depends on the number of teeth

Answer

Both gears turn in the same direction