Q:
How many types of quenching are there?
Answer & Explanation
Answer: B) 3
Explanation: There are many different types of quenching:
• quenching in a fine vapour or mist is known as fog quenching
• if quenching is carried out directly from some other heat treatment operation (carburizing for example), it is known as direct quenching
• if only some portions of a workpiece are quenched, it is known as selective quenching.
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