SSC JE Civil Engineering 30-Oct-2020 Shift 2 Paper

Explanation:
For Kharif:
The culturable command area = 3554.4 hectares
Duty at the head of the canal = 1900 hectare per cumec
Discharge required(Q1) =

Culturable‌command‌area

Duty

Discharge required(Q1)=

3554.4

1900

Discharge required(Q1) = 1.87 cumec
For Rabi:
The culturable command area = 2369.9 hectares
Duty at the head of the canal = 2150 hectare per cumec
Discharge required(Q2) =

Culturable‌command‌area

Duty

Discharge required(Q2) =

2369.9

2150

Discharge required(Q2) = 1.10 cumec
Average discharge required(Qav) :
Qav =

Q1+Q2

2

Qav =

1.87+1.10

2

Qav = 1.485 cumec = 1.49 cumec.