Ramsay Test Technical Aptitude & Knowledge 2

Question 1

In a system of two meshing spur gears, the driver has 12 teeth and the driven gear has 36 teeth. What is the gear ratio?

Accepted Answer

1:3

Answer

The ratio of driver to driven teeth is 12:36, which simplifies to 1:3.

Question 2

When two external spur gears mesh, how do their directions of rotation compare?

Accepted Answer

They rotate in opposite directions

Answer

Two externally meshing gears always turn in opposite directions.

Question 3

A first-class lever has the fulcrum located where relative to the effort and load?

Accepted Answer

Between the effort and the load

Answer

In a first-class lever the fulcrum sits between the applied effort and the load.

Question 4

Which simple machine is a wheel and axle BEST described as?

Accepted Answer

A rotating lever

Answer

A wheel and axle acts as a continuously rotating lever about its center.

Question 5

Increasing the diameter of a pulley driven by a fixed-speed belt will do what to the pulley's rotational speed?

Accepted Answer

Decrease it

Answer

A larger driven pulley turns slower than a smaller one at the same belt speed.

Ramsay Test Practice Test