8) Which of the following is used in gaseous form in water for disinfection?
Answer is:
Chlorine
Related ISRO Technician-B Plumber Question Paper - 2017 (Set - 1) with Answer Key
Answer is:
Sewer
Answer is:
All of these
Explanation:
Air-conditioning involves
* Controlling the temperature
* Controlling the humidity
* Cleaning the air
Answer is:
All of these
Explanation:
Water is required for
* Drinking and cooking
* Bathing and washing
* Growing of crops