Technical Questions : About temperature and flow sensors, their principles, types, advantages and disadvantages One control loop design question : e.g. Design a water level controller for the water tanks at houses

Campus interview. Pretty easy. Good experience. Only one round. Down side is they asked to sign a minimum 3 year stay with company contact. How is it not 30 words already. I don't understand.

-No work ethics. -No Bereavement Leave, sick leave. -A fresher (till he gets 5 yrs of experience) doesn't get to do engineering work at all in the project (with very few exceptions). -Most of Bangalore campus employees are Tamilians (worst politics). -No dignity of labour. -A Engineer is treated like a office boy. -Salary hike is very less. (Max of 8-10%). -HRA for GET is 2500. -No recognition at all. -Career will be destroyed if anyone stays for more than 3 years in this company. -No perks, allowances, OT. -Only Privilege leaves are available. Salary for GET is 2.95 LPA (as of July 2017). -No permanent work place, computer. -Laptop is not given until you have 5 years of experience. -Leads doesn't work at all (atleast 70%). -No performance bonus. -No work from home. -No flexi working hours. -Worst food in canteen.