Questions and answers for exam Preparation

MCQs

Total Questions : 152 | Page 1 of 16 pages

Question 1. Which of the following characteristics is wrong about extensive irrigation?

The irrigation extends to a large area with the lowest available supply
Agricultural production and protection against famine will be at optimum levels
The crop production will be minimal per unit of available water
It creates a perpetual scarcity of water

Discuss Question

Answer: Option C. -> The crop production will be minimal per unit of available water
Answer: (c).The crop production will be minimal per unit of available water

Question 2. What is the correct formula for Flow Time in an hour for an individual farmer?

(FT for the unit area) x (area of farmer’s fields) + (his bharai – his jharai)
(FT for the unit area) x (area of farmer’s fields) – (his bharai – his jharai)
FT for the unit area + (his bharai – his jharai)
FT for the unit area – (his bharai – his jharai)

Discuss Question

Answer: Option A. -> (FT for the unit area) x (area of farmer’s fields) + (his bharai – his jharai)
Answer: (a).(FT for the unit area) x (area of farmer’s fields) + (his bharai – his jharai)

Question 3. What are the categories of the entire water conveyance system?

The primary distribution system and secondary distribution system
The primary distribution system, the secondary distribution system, and Water allowance
The primary distribution system, secondary distribution system, and tertiary distribution system
The primary distribution system, secondary distribution system, tertiary distribution system, and Water allowance

Discuss Question

Answer: Option C. -> The primary distribution system, secondary distribution system, and tertiary distribution system
Answer: (c).The primary distribution system, secondary distribution system, and tertiary distribution system

Question 4. Which of the following statement is wrong?

The primary and secondary distribution system is fully controlled by the State Irrigation Department
The tertiary system is managed by farmers
The distribution of water managed by farmers is done on a seven-day rotation basis
Water allowance is not a compromise between the likely demand and the supply for a given project

Discuss Question

Answer: Option D. -> Water allowance is not a compromise between the likely demand and the supply for a given project
Answer: (d).Water allowance is not a compromise between the likely demand and the supply for a given project

Question 5. What is the formula for the Flow Time for the unit area in hours?

168 – (total Bharai – total Jharai) / Total area to be irrigated by the water-course
168 + (total Bharai – total Jharai) / Total area to be irrigated by the water-course
168 – (total Bharai – total Jharai)
168 + (total Bharai – total Jharai)

Discuss Question

Answer: Option A. -> 168 – (total Bharai – total Jharai) / Total area to be irrigated by the water-course
Answer: (a).168 – (total Bharai – total Jharai) / Total area to be irrigated by the water-course

Question 6. Kor demand of the crop should be taken into account while fixing the capacity of a canal.

True
False
May be True or False
Can't say

Discuss Question

Answer: Option A. -> True
Answer: (a).True

Question 7. What is the most important point to be considered while fixing the canal capacity?

Keenest Demand
Average Demand
Water Demand
Demand

Discuss Question

Answer: Option A. -> Keenest Demand
Answer: (a).Keenest Demand

Question 8. At a certain place, the transplantation of a crop takes 15 days, and the total depth of water required by the crop is 90 cm on the field. During the plantation rain falls and about 20 cm is utilised to fulfil the demand. Now determine the duty of irrigation water required during the plantation.

185.14 hectares/cumec
186.25 hectares/cumec
187.45 hectares/cumec
184.89 hectares/cumec

Discuss Question

Answer: Option A. -> 185.14 hectares/cumec
Answer: (a).185.14 hectares/cumec

Question 9. A pump was installed in a field to supply water to the crops. The duty for this crop is 432 hectares/cumec on the field and the efficiency of pump is 50%. The sown area of the field is 5 hectares. Determine the maximum output required (H.P) of the pump, if the highest water level is 4 meters below the highest portion of the field. Assume negligible field channel losses.

0.77 H.P
0.85 H.P
0.80 H.P
0.31 H.P

Discuss Question

Answer: Option D. -> 0.31 H.P
Answer: (d).0.31 H.P

Question 10. Let us consider in a given area the plantation of a certain crop takes 20 days, and the total water depth required by this crop is 80 cm on the field. Find the duty of irrigation water required for the crop during this period.
(a) Assuming 20% losses of water in the water courses, find duty at the head of the course.
(b) Find the duty of the water at the head of the distributary, assuming 10% losses from the distributary head.