Irrigation Engineering (3170609) MCQs

MCQs of INTRODUCTION & WATER REQUIREMENT OF CROPS

Showing 11 to 20 out of 64 Questions
11.

statement 1 : Duty is an expression of the irrigating capacity of unit volume of  water.                                                                                          statement 2: Duty at the head of a distributary will be less than that of at the head of a watercourse.                                                                                       

(a)

1 only correct

(b)

2 only correct

(c)

1 and 2 both are correct

(d)

Both are incorrect

Answer:

Option (b)

12.

Statement 1: If the soil moisture is only slightly more than the wilting coefficient ,the plant must expend extra energy to obtain the water and hence plant will not grow healthy.                                                                                                                                                                                                      statement 2: Excessive water supply retards the plant growth.

(a)

1 is correct

(b)

2 is correct

(c)

Both are correct

(d)

None of correct

Answer:

Option (c)

13.

1. Saturation Zone 2. Capillariy Zone 3.Intermediate Zone 4. Soil water Zone                                                                                                                       which one of these does not relate to the root zone of aeration in the soil profile.

(a)

1 and 2

(b)

2 and 3

(c)

4 only

(d)

1 only

Answer:

Option (c)

14.

For supplying water to rabi crop, khariff crop and sugarcane, the canal is designed for a capacity equal to the greater of the water requirement of 

(a)

Rabi or khariff

(b)

Rabi and khariff or sugarcane

(c)

Rabi and sugarcane or Khariff and Sugar cane

(d)

rabi or Khariff or Sugarcane

Answer:

Option (c)

15.

The amount of irrigation water required to meet the evapotranspiration needs of the crop during its full growth is called

(a)

Effective Rainfall

(b)

Consuptive Use

(c)

CIR

(d)

NIR

Answer:

Option (c)

16.

The " out let Discharge factor "  is the duty at the head of 

(a)

Main canal

(b)

Branch canal

(c)

water course

(d)

Distributary canal

Answer:

Option (c)

17.

The depth of water required to bring the water content of a given soil upto field capacity is called

(a)

Hydroscopic Water

(b)

Equivalant Moisture

(c)

soil moisture Deficiency

(d)

pellicular water

Answer:

Option (c)

18.

In a canal irrrigation project, 76% of the CCA remained without water during Kharifff season , and 58% of the CCA remained without water during Rabi season in a particular year.rest of the areas got irrigated in each crop respectively.what is the inesnsity of the irrigation for the project in the year.

(a)

134%

(b)

76%

(c)

66%

(d)

58%

Answer:

Option (c)

19.

An outlet irrigates an area of 40 ha the discharge(L/S)required at this outlet to meet the evapotranspiration requirement of 20 mm occuring uniormly in a march month neglecting other field losses is (write only integer)

(a)

3

(b)

6

(c)

2.33

(d)

2

Answer:

Option (a)

20.

The intensity of irrigation for the khariff season is 60% for an irrigation project with CCA of 60000 ha. the Duty for the khariff season is 2000 ha /cumec. Assuming conveyance losses of 30% the required discharge (in cumec,write only integer ) at the head of the canal

(a)

26

(b)

24

(c)

30

(d)

22

Answer:

Option (a)

Showing 11 to 20 out of 64 Questions