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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. (

Correct Answer: 172.8 hectares/cumec, 194.4 hectares/cumec
Total depth of water needed = 80 cm Period for which water is needed = 20 days Duty of irrigation water = (864B/d) = (864 x 20 / 80) = 216 hectares/cumec (a) Given 20% losses in the watercourse = 216 x 0.8 = 172.8 hectares/cumec (b) Given 10% losses in the head of the distributary = 216 x 0.9 = 194.4 hectares/cumec.

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.

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.

If one plots the tank irrigation in India and superimposes it with map of well irrigation,one may find that the two are negatively related. Which of the following statements explain the phenomenon?1. Tank irrigation predates well irrigation.2. Tank irrigation is in the areas with impervioussurface layers.3. Well irrigation requires sufficientground water reserves.4. Other forms of irrigation are not available.Select the correct answer using the code given below.

Given that a particular crop requires about 20 cm depth of water at an interval of 40 days, and the base period is 400 days. Find the delta for the crop? Now using this delta find the duty of water for the crop?

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.

A partner cannot contract himself out of which of the following duties?
(1) Duty of utmost good faith, i.e. uberrimae fidei.
(2) Duty of carry on business to greatest common advantage.
(3) Duty to render true accounts and full information.
(4) Duty to indemnify for fraud.
(5) Duty to indemnify for willful neglect.
(6) Duty to properly use the firm's property.

An irrigation channel is carrying 2 m3/s to a culturable command of 1500 ha with an intensity of irrigation of 50%. If the base period of crop is 140 days, the duty of channel water is . . . . . . . . ha/m3/s.

It is said that a particular type of crop requires a depth of 6 cm of water every 24 days and the crop period is 168 days. Find the delta of the crop?

A passenger paid 50% customs duty on accompanied baggage items. He paid another 20% sales tax on the total value of the items plus the custom duty paid. The total custom duty and sales tax is Tk. 350. what is the value of the item custom duty and sales tax?

Mujahid can do a work in 8 days, while has colleagues Asad takes 12 days and Mithun takes 16 days to complete the same.Mujahid and Asad started the work and after few days Asad left the work keeping it incomplete. Rest of the work was completed by Mujahid and Mithun in 2 days.How long it took to complete the whole work?