Standard of Irrigation water
concentration of soluble salt

Electrical conductivity is expressed in micro-mhos per centimeter at 25℃

Ec < 250 -- Low salinity of water

250 ≤ Ec < 750 -- Medium salinity of water

750 ≤ Ec < 2250 -- High salinity of water

Ec ≥ 2250 -- Very high salinity of water

--> Value of sodium adsorption ratio for high sodium water lies between - 18 to 26

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Maharashtra All junior engineer (JE) Papers till now

Elevated Storage Tanks.(EST)

Types of slabs.

🎲 Quiz 'DESIGN F RCC STRUCTURE'
🖊 30 questions · ⏱ 45 sec

🎲 Quiz 'Rcc'
🖊 30 questions · ⏱ 45 sec

🎲 Quiz 'Tech quiz'
🖊 74 questions · ⏱ 30 sec

Air Pollution

Classification of Air Pollutants:-

Primary Pollutants:-
1. Hydrocarbons
2. Sulphur compounds
3. Nitrogen compounds
4. Carbon dioxide
5. Carbon monoxide
6. Photochemical Oxidents
7. Lead
8. Radioactive materials
9. Halogen compounds
10. Suspended Particulate matter

Secondary Pollutants:-
1. Sulphuric acid
2. Ozone
3. Formaldehyde
4. Peroxy-acetyl-nitrate(PAN)
5. Photochemical smog.

Type of cross drainage works (CD works)


1)CD works carrying the canal over the natural drain
a) Aqueduct
b) Syphon aqueduct

2)CD works carrying natural drain over the canal
a) Super passage
b) Syphon

3)CD works admitting the drain water into the canal
a) Level crossing
b) Inlet and outlet

🎲 Quiz 'SOIL MECHANICS'
🖊 30 questions · ⏱ 45 sec