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EXAM PREPARATION

Objective Question & Answer

QUESTION

Objective Question

Q.1

For a culturable command area of 1000 hectare with intensity of irrigation of 50%, the duty on field for a certain crop is

2000 hectare/cumec. What is the discharge required at head of water course with 25% losses of water?

1000 हेक्टेयर के कृषि योग्य कमान क्षेत्र (culturable command area) में, जहाँ सिंचाई की सघनता (intensity of irrigation) 50% है, किसी विशेष फसल के लिए खेत पर 'ड्यूटी' (duty) 2000 हेक्टेयर/क्यूमेक है। यदि पानी के बहाव के दौरान 25% पानी का नुकसान (losses) होता है, तो जल मार्ग (water course) के शुरुआती बिंदु (head) पर कितना डिस्चार्ज (discharge) आवश्यक होगा?
A

3/16 cumec

B

1/4 cumec

C

1/3 cumec

D

1/2 cumec

Answer ( Option C)

1/3 cumec

Solution

Given

CCA = 1000 ha ; Q = ?

G = 50%

D = 2000 ha/cumec head of water course only 50% (CCA) is irrigated.

By observing the given data (units)

 

 

= 0.25 cumec.

25% is lost during transport

 

At Qoutlet = 0.75 (at Qhead)

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