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JSSC JE CE IRRIGATION & HYDROLOGY QUIZ 4

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Question 1

What will be the consumptive use of water as determined from Blaney – Criddle equation if the average monthly temperature is 15˚C and the percent of daylight hours in that month is 7.45%. Assume that the crop factor is 0.85.

Question 2

Calculate the depth of core watering if the kor period if of 5 weeks and the area of land irrigated by 0.2 cumec of discharge is 352 hectares.

Question 3

A pipe of water carrying discharge of 0.03 cumec is used to irrigate a field. If the duty at the end of pipe is 854 hectare/cumec what will be the culturable commandable area? Assume the intensity of irrigation is 54%.

Question 4

The main advantage of bentonite layer lining in an irrigation canal is that:

Question 5

A canal, designed to irrigate throughout the year is ______.

Question 6

Why do we need to do the linning of the canal?
A) To minimize seepage losses in canal
B) To prevent erosion of bed and sides due to high velocities
C) To decrease the discharge in the canal section by increasing the velocity

Question 7

Consider the following statements:
Lining of irrigation canals has necessarily to be carried out in the reaches where the channel passes through
1). sandy soil
2). coarse aggregate soil
3). Clay soil
4). Fine silt and clay
Select the correct answer using the codes given below:

Question 8

The garret diagrams for the design of stable channels is based on

Question 9

Which one of the following is not the major factor influencing seepage from a canal?

Question 10

Lining of canal is necessary:-
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Jul 18AE & JE Exams