Question

Force employed in hammer mill is:

• A. Only impact
• B. Impact and compression
• C. Impact and shear
• D. Shear only

Hint:

Hammer mill: impact force.
Ball mill: impact and compression.
Roller mill: compression and shear.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Hammer mill is a size reduction equipment.
It uses hammers to break materials.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the working principle of a hammer mill.

Step 3: Detailed Explanation:
In a hammer mill, the material is crushed by the impact of moving hammers.
The hammers strike the material with high speed.
Compression and shear forces are not the primary forces.
The force employed is only impact force.

Step 4: Final Answer:
The force employed in hammer mill is only impact.
Hence, the correct option is (A).