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The root zone of a certain soil has a field capacity of 30 and permanent wilting percentage is 10 i) What is the depth of moisture in the root zone at field capacity and permanent wilting point ii) How much water is available if the root zone dept?1 AnswerAn irrigation stream of 27 L s-1 is diverted to a check basin of size 12 m × 12 m. The water holding capacity of the soil is 15% and the average soil moisture content in the crop root zone prior to applying water is 7.5%. The depth of crop root zone is 1.2 m and apparent specific gravity of the soil is 1.5. Assuming no loss due to deep percolation, irrigation time (in minute) required to replenish the root zone moisture to its field capacity is _________.0 AnswerIn a cropped field, the following data are observed. Moisture content at field capacity (weight basis) = 36% Current moisture content (weight basis) = 24% Bulk density of soil = 1.5 Mg m-3 Effective root zone depth = 0.8 m Conveyance efficiency = 80%1 AnswerDetermine the area which can be irrigated using surface method of irrigation with a source of water having a discharge of 10000 litres per minute. The available moisture holding capacity of the soil is 180mm per metre and depth of root zone is 1.1m.1 AnswerThe following data pertains to healthy growth of crop i Field capacity 30 ii Permanent wilting percentage 11 iii Density of soil1300kgm3 iv Effective depth of soil 700mm v Daily consumptive use of water for given crop 12mm For health?1 AnswerUndisturbed soil sample is collected from a field when the soil moisture is at field capacity. The inside diameter of the core sampler is 7.5 cm with a height of 15 cm. Weight of the core sampling cylinder with moist soil is 2.81 kg and that with oven dry soil is 2.61 kg. The weight of the core sampling cylinder is 1.56 kg. Assuming π = 3.14, the water depth in centimeter per meter depth of soil (rounded off to two decimal places) is _________.0 AnswerThe availability of water in the root zone for plant use is maximum in the case of0 AnswerThe field capacity of a certain soil is 126 and its specific gravity is 142 If the moisture content of present in the soil before irrigation is 82 .How deep the soil profile will be welted with an application of 50mm of irrigation water?1 AnswerThe field capacity of a certain soils is 183 and its specific gravity is 125 A wet sample of the soil taken before irrigation weighs 153gm and weight after drying in the oven is 138gm What depth of water must be applied to irrigate the soil to a?1 Answer Newton-Raphson method is to be used to find root of equation 3𝑥𝑥 − 𝑒𝑒𝑥𝑥 + sin 𝑥𝑥 = 0. If the initial trial value for the root is taken as 0.333, the next approximation for the root would be _________ (note: answer up to thr1 AnswerThe hypotenuse of a right-angled triangle 10 cm and its area is 24 cm2 . If the shorts side is halved and the longer side is double, the new hypotenuse becomes A. root(245) cm B. root(255) cm C. root(265) cm D. root(275) cm0 AnswerA well is drilled with water based mud. The water saturation in the completely flushed zone (no formation fluid residual) is given by, Gate-2018-General-Aptitude0 AnswerThe two columns below show some parameters and their possible values Parameter Value P – Gross Command Area I – 100 hectares/cumec Q – Permanent Wilting Point II – 6 °C R – Duty of canal water III – 1000 hectares S – Delta of wheat IV – 1000 cm V – 40 cm VI – 0.12 Which of the following options matches the parameters and the values correctly? - gate civil 2017 1 AnswerEvaluate (1/2)-1/20 AnswerWhat is the Temporal Dead Zone in ES6?2 AnswerA square footing of 4 m side is placed at 1 m depth in a sand deposit. The dry unit weight () of sand is 15 kN/m3 . This footing has an ultimate bearing capacity of 600 kPa. Consider the depth factors: dq = d = 1.0 and the bearing capacity factor: N = 18.75. This footing is placed at a depth of 2 m in the same soil deposit.0 AnswerA major thrust in the Himalayas has resulted in intense shearing of a zone about 0.5 km wide on either side of the thrust leading to landslides. Which GIS function can be used to display the shear zone? GATE-Geology and Geophysics-Question-20121 AnswerThe Newton-Raphson method is used to determine the root of the equation ( ) x f x e x . If the initial guess for the root is 0, the estimate of the root after two iterations is ______ (rounded off to three decimal places).0 AnswerA person moving through a tuberculosis prone zone has a 50% probability of becoming infected. However, only 30% of infected people develop the disease. What percentage of people moving through a tuberculosis prone zone remains infected but does not s1 AnswerA sign is required to be put up asking drivers to slow down to 30 km/h before entering Zone Y (see figure). On this road, vehicles require 174 m to slow down to 30 km/h (the distance of 174 m includes the distance travelled during the perception-reaction time of drivers). The sign can be read by 6/6 vision drivers from a distance of 48 m. The sign is placed at a distance of x m from the start of Zone Y so that even a 6/9 vision driver can slow down to 30 km/h before entering the zone. The minimum value of x is _______________ m. - gate civil 2017 1 Answer
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