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Agricultural Engineering Gate 2017 Questions with Answer
Ques 53 GATE 2017
A cavity well is a tubewell which has
Ques 54 GATE 2017
Modified Hooghoudt's equation for the computation of drain spacing is applicable to
Ques 55 GATE 2017
The sum of specific yield and specific retention for an unconsolidated geologic formation is equal to its
Ques 56 GATE 2017
The areas of seven horizontal cross-sections of a water reservoir at intervals of 9 m are 210, 250, 320, 350, 290, 230 and 170 m². The estimated volume of the reservoir in m³ using Simpson's rule is
14760 is the correct answer.
Ques 57 GATE 2017
A six-stage centrifugal pump delivers 120 L/s against a total head of 510 m. If the design speed of this pump is 1450 rpm, the specific speed of the pump will be
568 is the correct answer.
Ques 58 GATE 2017
A watershed of 100 km² is underlain by an unconfined aquifer having hydraulic conductivity of 15 m/day and specific yield of 0.20. If 30 million m³ of water is pumped from this aquifer through uniformly distributed wells, the average drop of water table over the watershed in meter will be
Ques 59 GATE 2017
Match the following items between Column-I and Column-II with the most appropriate combinations.
Column-I
P. Neutron Probe
Q. Pressure Plate Apparatus
R. Tipping Bucket
S. Current Meter
T. Pumping Test
U. Lysimeter
Column-II
1. Open channel flow
2. Deep percolation
3. Aquifer parameters
4. Soil moisture
5. Rainfall intensity
6. Soil-moisture characteristic curve
Ques 60 GATE 2017
Graded furrows of 80 m length and 0.75 m spacing are used for irrigating a field with an initial furrow stream of 100 L/min. The initial furrow stream flow reaches the lower end of the field in 40 min. Thereafter, the furrow stream flow is reduced to 30 L/min and the cutback stream flow is continued for 1 hour. The average depth of irrigation over the field in cm will be
9.7 is the correct answer.
Ques 61 GATE 2017
The soil of a cropped field has field capacity of 25% and wilting point of 13% on weight basis. The effective root-zone depth of the crop is 0.70 m and the consumptive use of water by the crop is 5 mm/day. Apparent specific gravity of the soil is 1.50. If the allowable soil moisture depletion is 40%, the permissible moisture depletion between irrigations and the frequency of irrigation are
Ques 62 GATE 2017
A watershed of 4.8 km² generates 4.3 cm runoff from a rain storm of 4-hour duration. The measured rainfall intensities for this storm in successive 30-minute durations are given below:
Ques 63 GATE 2017
Bunds are to be constructed to conserve rainwater in a farm having 6% slope. If the horizontal interval between two bunds is 30 m and there is no loss of water, the required height of the bund to store rainwater from an 18 cm rainfall event with 10 years of return period in cm will be
81 is the correct answer.
Ques 64 GATE 2017
A rectangular channel having bed slope of 0.05% and Manning's roughness coefficient of 0.01 carries a discharge of 5 m³/s. If the channel is designed as the most economical section, the width of the channel in meter will be
2.48 is the correct answer.
Ques 65 GATE 2017
A trapezoidal notch, placed over an emergency spillway, has the following details:
Top width = 2 m
Bottom width = 1 m
Height = 0.5 m
Coefficient of discharge for the triangular portion = 0.65
Coefficient of discharge for the rectangular portion = 0.68
For a flow head of 0.4 m over the notch, the discharge in L/s will be about
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