Question

Which of the following is a coarse crusher?

• A. Jaw crusher
• B. Disc crusher
• C. Conical crusher
• D. Single roll crusher

Hint:

Jaw crusher is a primary and coarse crusher used for large lumps of solid material.

Answer 1

The Correct Option is A

Crushers are used for size reduction of large solid materials. Size reduction equipment may be classified as: \[ \text{coarse crushers, intermediate crushers, fine grinders, and ultrafine grinders} \] A jaw crusher is a coarse crusher. It is used for primary crushing of large lumps of ore or rock. In a jaw crusher, material is crushed between a fixed jaw and a moving jaw. It is suitable for reducing large feed particles to smaller sizes. Disc crushers and roll crushers are generally used for finer or intermediate crushing depending on application. Therefore, the coarse crusher among the given options is: \[ \text{Jaw crusher} \]