Canal Irrigation System and Canal Falls MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Canal Irrigation System and Canal Falls, a fundamental topic in the field of Irrigation Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Canal Irrigation System and Canal Falls MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Canal Irrigation System and Canal Falls mcq questions that explore various aspects of Canal Irrigation System and Canal Falls problems. Each MCQ is crafted to challenge your understanding of Canal Irrigation System and Canal Falls principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Irrigation Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Canal Irrigation System and Canal Falls MCQs are your pathway to success in mastering this essential Irrigation Engineering topic.

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Canal Irrigation System and Canal Falls MCQs | Page 4 of 16

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Q31.
What is Gross Cropped Area?

a.

Net irrigated area + Area irrigated more than once during the same year

b.

Net cropped area + Area sown more than once during the same year

c.

Net irrigated area + Net cropped area

d.

Total area irrigated once a year + area irrigated more than once in that year

Discuss
Answer: (b).Net cropped area + Area sown more than once during the same year
Q32.
The ratio of the actual operating period of a distributary to the crop period is called as ____________

a.

capacity factor

b.

time factor

c.

full supply coefficient

d.

nominal duty

Discuss
Answer: (b).time factor
Q33.
The number of hectares irrigable per cumec of the canal capacity at its head is known as ____________

a.

nominal duty

b.

duty on capacity

c.

design full supply discharge

d.

capacity factor

Discuss
Answer: (b).duty on capacity
Q34.
The cropped area in Rabi season is usually increased.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q35.
The Gross Command Area for a distributary is 8000 hectares 80% of which is culturable irrigable. The intensity of irrigation for Rabi season is 50% and the average duty at the head of the distributary is 2000 hectares/cumec. Determine the discharge required at the head of the distributary.

a.

1.33 cumec

b.

1.60 cumec

c.

1.40 cumec

d.

1.44 cumec

Discuss
Answer: (b).1.60 cumec
Q36.
The CCA of a water course is 1500 hectares. The intensity of sugarcane and wheat crops is 20% and 40% respectively. The duties for the crops at the head of the watercourse are 730 hectares/cumec and 1600 hectares/cumec respectively. Calculate the design discharge at the outlet assuming a time factor equal to 0.8.

a.

0.55 cumec

b.

1.0 cumec

c.

0.72 cumec

d.

0.92 cumec

Discuss
Answer: (c).0.72 cumec
Q37.
The transplantation of rice takes 18 days and the total depth of water required by the crop is 60 cm on the field. During this transplantation period, rain starts falling and about 10 cm of rain is being utilized to fulfill the rice demand. Find the duty of irrigation water required for rice assuming 25% losses of water in watercourses.

a.

233.28 hectares/cumec

b.

240 hectares/cumec

c.

230 hectares/cumec

d.

244.44 hectares/cumec

Discuss
Answer: (a).233.28 hectares/cumec
Q38.
Loss of canal discharge occurs mainly due to?

a.

Seepage and Percolation

b.

Percolation and Absorption

c.

Seepage and Evaporation

d.

Seepage and Absorption

Discuss
Answer: (c).Seepage and Evaporation
Q39.
Which of the following factor do not affect seepage loss?

a.

Underground water-table condition

b.

The porosity of the soil

c.

Physical properties of the canal water

d.

Prevailing wind velocity in the region

Discuss
Answer: (d).Prevailing wind velocity in the region
Q40.
In which of the following phenomenon there is a continuous direct flow between the canal and the underground water table?

a.

Absorption

b.

Seepage

c.

Percolation

d.

Both Absorption and Percolation

Discuss
Answer: (c).Percolation
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