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Q: What is the mode of action of Jaw crushers (size reduction equipment)?
  • A. Breaking
  • B. Slicing
  • C. Mashing
  • D. Grinding
Correct Answer: Option A - The working principle of Jaw crushers is based on the reciprocating movement of the movable jaw that compresses and crush the rock or ore between itself and the fixed jaw, as the material enters the zone between the jaws.
A. The working principle of Jaw crushers is based on the reciprocating movement of the movable jaw that compresses and crush the rock or ore between itself and the fixed jaw, as the material enters the zone between the jaws.

Explanations:

The working principle of Jaw crushers is based on the reciprocating movement of the movable jaw that compresses and crush the rock or ore between itself and the fixed jaw, as the material enters the zone between the jaws.