Prepare lecturing presentations in mechanical and electrical engineering fields.

Prepare lecturing presentations in following fields:
1. Fire fighting
Each presentation to cover one topic:
- Design and Installation of Sprinkler Systems
- Types and applications of fire extinguishers
- Design and installation of FM200 system
- Fire alarm system components and working principle of each

2. Electrical engineering:
Each presentation to cover one topic:
- Variable frequency drives (working principle and applications)
- Soft starters (working principle and applications)
- HV panels Vs MV panels on chillers (main components, pros. and cons. of each)

3. Mechanical:
- Different types of valves in use in HVAC and applications of each.
- Different types of valves in use in Fire fighting and applications of each.