Geotechnical Engg

Unit/Test & it's Purpose:-Casagrande's Apparatus:-
Determination of Consistency Limits

Hydrometer:-
Determination of Grain Size Distribution

Plate Load Test:-
Determination of Safe Bearing Capacity

Oedometer:-
Consolidation Characteristics

Core-Cutter:-
Field Density

Pycnometer:-
Specific Gravity

Soil Deposited From Suspension in Running water:-
Alluvial Soil

Deposits of Marine Origin:-
Marl

Deposits by Wind:-
Loess

Organic Soil:-
Peat

Deposited at bottom of Lakes:-Lacustrine Soil

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waste water engineering

Sewage :- All kinds of liquid waste produce by community (includes domestic waste, Storm waste, industrial waste etc).

Sullage :- The waste Water from bathrooms, kitchen etc.

Rubbish :- All sundry soild waste as paper, broken furnitures, waste building materials etc are known as rubbish

Sewer :- A conduit which carries sewage.

Sewerage :- Network of sewer used in collection, conveyance and disposal of sewage.

Dry weather flow (DWF) :- Domestic and industrial waste water produced by the community.

Wet weather flow (WWF) :- Storm water resulting from community.

Methods of sewerage system

👉 Dry and conservancy system

👉 Water carriage system

Subject:-RCC

Permissible Limits of Solids as Per IS 456:2000

1)Organic:-
200mg/litres

2) Suspended Matter:-
2000mg/l

3)Sulphates:-
400mg/l

4)Chlorides:-
a)For Plain Concrete:-
2000mg/l

b)For RCC:-
500mg/l

5)Inorganic:-
3000mg/l

🎲 Quiz 'ENVIRONMENTAL ENGINEERING'
🖊 30 questions · ⏱ 30 sec

Variations in water demand

Maximum daily demand :- 1.8*Avg. Daily demand.

Maximum hourly demand :- 1.5*Avg. demand hourly of maximum day

Peak demand :- 2.7*Avg. Hourly demand.

Maximum weekly demand :- 1.48*Avg. Weekly

Maximum monthly demand :- 1.28*Avg. Monthly

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