ISRO Technician-B Plumber Question Paper - 2017 (Set - 1) with Answer Key

ISRO Technician-B Plumber Question Paper - 2017 (Set - 1) with Answer Key

6) Find the HP of pumpset with efficiency of 50 percent required to fill a water storage tank at a discharge rate of 120 litres per second and the total head of 20 meters is

Answer is:

64

7) In electrical language DC refers to

Answer is:

Direct current

8) Which of the following is used in gaseous form in water for disinfection?

Answer is:

Chlorine

9) A line of pipes including all fittings and equipments such as manholes, traps etc. is called

Answer is:

Sewer

10) Air-conditioning involves

Answer is:

All of these

Explanation:

Air-conditioning involves
* Controlling the temperature
* Controlling the humidity
* Cleaning the air