(b)- Explain the differences between Sink and Wash basin.

(c)- i)- List down four types of Air Conditioning systems.  ii) – Discuss their differences briefly.

(d)- i) – Express the meaning of AHU ii) – Name four major components of AHU system

(e)- What is the function of control panel in firefighting system? Explain briefly.

(f)- Name four types of fire extinguishers with relevant fire class.