CAST Testing Specialized Technologies 4

Question 1

In a system of two meshing gears, the gears always rotate in which directions relative to each other?

Accepted Answer

Opposite directions

Answer

Two directly meshing gears always rotate in opposite directions because their teeth push against each other.

Question 2

On the CAST Reading for Information section, the main idea of a passage is best described as what?

Accepted Answer

The central point the passage conveys

Answer

The main idea is the overall central point that the entire passage is intended to communicate.

Question 3

Graphic Arithmetic: a chart shows a machine produces 60 parts per hour. How many parts are produced in a 7.5-hour shift?

Accepted Answer

450 parts

Answer

Multiplying 60 parts per hour by 7.5 hours yields 450 parts in the shift.

Question 4

Which of these is an example of converting kinetic energy into another form?

Accepted Answer

A moving car braking and producing heat in the brakes

Answer

Braking converts the car's kinetic energy of motion into thermal energy through friction in the brakes.

Question 5

In Mechanical Concepts, increasing the number of supporting rope strands in a pulley system does what?

Accepted Answer

Reduces the effort force needed to lift the load

Answer

More supporting strands distribute the load, reducing the effort force required while increasing the distance the rope must be pulled.

CAST Test Practice Test