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**42) **Perimeter of the semicircle having diameter 'd' is

**Answer is:**

## (Pie+2)*d/2

**Related ISRO Technician-B Turner Question Paper - 2019 (Set-1) with Answer Key**

**Answer is:**

### Upset welding

**Answer is:**

### (Length of cut x No. of cuts)/(Feed x r.p.m)

**Answer is:**

### 1815.50'

**Answer is:**