FCTC Test FCTC Mechanical Reasoning Principles 1

Question 1

A movable pulley system uses 2 rope segments to support a load. If the load weighs 400 lbs, how much effort force is required (ignoring friction)?

Accepted Answer

200 lbs

Answer

400 lbs

Answer

100 lbs

Answer

800 lbs

Question 2

A wheel with a radius of 12 inches is attached to an axle with a radius of 3 inches. If a force of 50 lbs is applied to the rim of the wheel, how much load can the axle lift?

Accepted Answer

200 lbs

Answer

12.5 lbs

Answer

50 lbs

Answer

150 lbs

Question 3

A hydraulic system has a small piston with an area of 2 square inches and a large piston with an area of 10 square inches. If 50 lbs of force is applied to the small piston, what output force is produced at the large piston?

Accepted Answer

250 lbs

Answer

10 lbs

Answer

50 lbs

Answer

500 lbs

Question 4

An inclined plane is 10 feet long and 2 feet high. What is the mechanical advantage of this ramp?

Accepted Answer

5

Answer

2

Answer

8

Answer

20

Question 5

Which class of lever has the load (resistance) positioned between the fulcrum and the effort force?

Accepted Answer

Second class

Answer

First class

Answer

Third class

Answer

Compound class

Question 6

A spring with a spring constant of 20 lbs per inch is compressed by applying 80 lbs of force. How far does the spring compress?

Accepted Answer

4 inches

Answer

1 inch

Answer

2 inches

Answer

8 inches