A 3 m long, horizontal, rigid, uniform beam PQ has negligible mass. The beam is subjected to a 3 kN concentrated vertically downward force at 1 m from P, as shown in the figure. The beam is resting on vertical linear springs at the ends P and Q. For the spring at the end P, the spring constant $K_P$ = 100 kN/m.
If the beam DOES NOT rotate under the application of the force and displaces only vertically, the value of the spring constant $K_Q$ (in kN/m) for the spring at the end Q is
What is the CORRECT match between the air pollutants and treatment techniques given in the table?
| Air pollutants | Treatment techniques |
|---|---|
| P - NO2 | i - Flaring |
| Q - SO2 | ii - Cyclonic separator |
| R - CO | iii - Lime scrubbing |
| S - Particles | iv - NH3 injection |
Which one of the following products is NOT obtained in anaerobic decomposition of glucose?
A circular settling tank is to be designed for primary treatment of sewage at a flow rate of 10 million liters/day. Assume a detention period of 2.0 hours and surface loading rate of 40000 liters/m2/day. The height (in meters) of the water column in the tank is ______________ (rounded off to 2 decimal places).