CAST Testing Specialized Technologies 3

Question 1

Which simple machine is represented by a doorknob turning a latch mechanism?

Accepted Answer

Wheel and axle

Answer

A doorknob is a wheel-and-axle device where turning the larger knob rotates the smaller axle to operate the latch.

Question 2

On the CAST Reading for Information section, an inference question asks you to do what?

Accepted Answer

Draw a logical conclusion supported by the passage

Answer

Inference questions require reasoning to a conclusion that the passage implies but does not state directly.

Question 3

If a hydraulic system has a small piston and a large piston, pushing the small piston produces what effect at the large piston?

Accepted Answer

Greater force over a shorter distance

Answer

Hydraulic systems multiply force, so the large piston exerts greater force but moves a shorter distance than the small piston.

Question 4

In Graphic Arithmetic, if a tank holds 500 gallons and a gauge shows it is one-quarter full, how many gallons remain?

Accepted Answer

125 gallons

Answer

One-quarter of 500 gallons equals 125 gallons remaining in the tank.

Question 5

Which factor increases the friction between two surfaces in a mechanical system?

Accepted Answer

A rougher surface texture

Answer

A rougher surface texture increases friction, while smoothing, lubricating, or reducing pressing force decreases it.

CAST Test Practice Test