Question

Assertion (A): In Electrical Discharge Machining (EDM), fragile parts can be machined without distortion because no mechanical work is involved.
Reason (R): The surface finish of the finished components made using EDM is poor because of presence of small craters.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

EDM → No cutting force but thermal damage leads to poor surface finish.

Answer 1

The Correct Option is B