Workshop Technology - Mechanical Engineering Questions and Answers

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In a four high rolling mill, there are four rolls out of which

One is working roll and three are backing up rolls

Two are working rolls and two are backing up rolls

Three are working rolls and one is backing up roll

All of the four are working rolls

Answer : Option B

Explanation :

In a four high rolling mill, there are four rolls out of which Two are working rolls and two are backing up rolls

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