The thermal conductivity of a material is a measure of its ability to conduct heat. It is commonly denoted by k.

Unit of thermal conductivity is W/mK.

#
**9) **Unit of thermal conductivity is

**Answer is:**

## W/mK

**Explanation:**

**Related ISRO Technical Assistant Mechanical Question Paper - 2016 with Answer Key**

##
**11) **water in a pipeline is doubled, then the pressure drop will be how many time the original value.

**Answer is:**

### 4 times

**Answer is:**

### 30 m/minute

**Answer is:**