#
**52) **A hollow shaft has 375 mm outside diameter and 275 mm inside diameter. The area of cross section is equal to

**Answer is:**

## 51071.4 square millimeter

### KPSC ITI JTO Workshop Calculation and Science Question Papers - 2018 with Answer Key

For more MCQ's Click Here**Related KPSC ITI JTO Workshop Calculation and Science Question Papers - 2018 with Answer Key**

**Answer is:**

### Copper 80%, Tin 20%

**Answer is:**

### upper critical temperature

**Answer is:**

### find out relative density of liquids and solids

**Answer is:**