Crushing / Breaking

Quiz

1. What are two major advantages portable plants have over stationary plants?

2. What is a popular feature of newer portable plants when it comes to setup?

3. What are three vital functions of the vibrating grizzly feeder?

4. In any limestone or sedimentary deposits, what is the first step on proper application of a crusher?

5. In any aggregate-processing plant, what is a primary design consideration?

6. What does the Mohs scale of hardness indicate?

7. Primary crushers in portable plants are usually what type?

8. In portable plants, the second stage of crushing is usually done with what type of crusher?

9. What are two major types of screens used on crushing plants?

10. What does the control trailer usually contain?

Quiz Answers

1. The ability to locate the plant in close proximity to the deposit; and the ease with which a producer is able to change locations in order to stay close to where the final product is needed

2. Use of hydraulic run-on legs

3. Absorb impact, meter the material into the crusher, scalp off fines not requiring primary crush

4. To consider the abrasive content of the material to be crushed

5. The rock type itself

6. Surface hardness and friability to stone via a simple scratch test

7. Jaw or impactor

8. Cone, impactor or set of rolls

9. Horizontal and inclined

10. Control tower, electrical switch gear and generator