In Long reach system, only a portion of full supply discharge is taken in the compartment.

← Prev Question Next Question →

1 Answer

Related questions

+1 vote

1 answer

The Remodelling of canal system is done to __________

asked Aug 15, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Which of the following is not a reason which leads to a canal breach?

asked Aug 19, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Which of the following is not a preventive measure for the maintenance of the canal?

asked Aug 19, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

In the external silting method, subsidiary banks are constructed which run parallel to canal main banks.

asked Aug 16, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

The berms help in checking excessive loss of water due to seepage.

asked Aug 16, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Berm is _____________

asked Aug 19, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Which of the following statement is wrong about the internal silting method?

asked Aug 19, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Which of the following combination is incorrect?

asked Aug 15, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Internal silting method and external silting method are the methods of ________________

asked Jul 31, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

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.

asked Aug 16, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

In a wide stream, a suspended load sample taken at a height of 0.30 m from the bed. The stream is 5.0 m deep and has a bed slope of 1/4000. The bed material can be of uniform size. Estimate the shear friction velocity.

asked Jul 31, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Calculate the velocity over the notch (V1) and the velocity through the pipe (V3) if the full supply discharge is 2 cumecs. The area of flow over the trapezoidal notch is 0.58 m^2. Assume the value of diameter of the pipe used as 1 m.

asked Aug 15, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Given that the bed slope of a channel is 1 in 2000 and the discharge is 60 cumecs. The depth of the channel is fixed and is given as 2 m. The tractive force needed for the movement of bedload is? Take critical velocity ratio as 1.1.

asked Jul 31, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Determine the discharge required at the head of the distributary in a canal where Kharif area to be irrigated is 2400 hectares and Rabi area to be irrigated is 1800 hectares, for fulfilling maximum crop requirement. Assume suitable values for kor depth and kor period.

asked Jul 29, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Design a channel carrying a 30 cumecs. The median grain diameter is taken as 0.5 mm. The bedload concentration is 60 p.p.m by weight. Use Lacey’s Regime perimeter and Meyer-peter’s formulas.

asked Jul 29, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

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

asked Jul 29, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Design a regime channel for a discharge of 90 cumecs and silt factor is 1.3 use Lacey’s Theory.

asked Aug 25, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Let us take the gross commanded area of a watercourse is 2000 hectares, 80% of which is culturable irrigable. Intensities of sugarcane and paddy are 30% and 50%. The duties of the crops at the head of the watercourse are 850 hectares/cumec and 1900 hectares/cumec. Find the discharge required at the head of the watercourse?

asked Aug 16, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Suppose the culturable commanded for a distributary is 8000 hectares, and the intensity of irrigation for Kharif season is 60% and that of rabi season is 30%. The average duty at the head of a distributary is 4000 hectares/cumec for Kharif season and for Rabi season it is 1800 hectares/cumec, find out discharge required at the head of the distributary?

asked Jul 29, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

If the width of a river increases, the discharge per unit width will decrease and therefore, sediment carrying capacity will increase.

asked Aug 16, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Given to design the irrigation channel to carry 80 cumecs of discharge. The channel slope is 1 in 3000. The critical velocity ratio is 1.3. Take rugosity coefficient as 0.021.

asked Jul 31, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Strickler’s formula is only applicable to the flexible boundary channels.

asked Jul 29, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

The scouring and silting on the river banks raise the flood levels for the particular discharge.

asked Jul 29, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

The cubic meters of water that can be stored in an irrigation tank between full tank level and sill level of the lowest supply sluice is known as __________________

asked Nov 16, 2023 in Irrigation Engineering by Carter (75.2k points)

+1 vote

1 answer

Gibb’s module is a type of outlet which ensures constant discharge even if the water levels in the supply channel and watercourse fluctuate.

asked Aug 25, 2023 in Irrigation Engineering by Carter (75.2k points)

...