Which is a secondary crusher for a hard & tough stone ?
Correct answer: B. Cone crusher
- A. Jaw crusher
- B. Cone crusher
- C. Impact crusher
- D. Toothed roll crusher
Explanation
A cone crusher is commonly used as a secondary crusher for hard and tough stones after primary size reduction. Jaw crushers are generally primary crushers, while impact and toothed-roll crushers are less suitable for very hard, tough feed.
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