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GATE 2022 Rapid Revision Quiz 21
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Question 1
The following data is given
Basic runway length = 1800 meters
Elevation of airport site = 600m.
Effective gradient = 0.6%
What is the corrected length of the runway after applying the correction for elevation?
Question 2
The field capacity and permanent wilting point for a given 80 cm root zone are 30 and 10 percent respectively at a given time. The soil moisture in the given soil is 20 percent when a farmer irrigates the soil with 250 mm depth of water. Assuming dry specific gravity of soil as 1.6,then the percentage amount of water wasted from the consideration of irrigation is
Question 3
Find the width of the trapezoidal channel for a discharge of 40m3/sec width silt factor 0.9 by Lacey's theory taking side slope 1H: 2V.
Question 4
A reactive chemical plant dispose by dilution in the river at a uniform rate of dissipation of 0.15 mg/l/hr. Waste water discharge is 30 MLD having chemical concentration of 20 mg/l. Flow rate of the river is 5 m3/sec and river has zero chemical concentration . Calculate the distance up to which chemical residue persist in km. If area of cross section is 10 m2.
Question 5
A waste water plant produces 950 kg of dry solids per day at a moisture content of 92%. The solids are 60% volatile with a specific gravity of 1.1 and the remaining are non-volatile with a specific gravity of 2.54. What is the volume (in m3) of sludge after digestion, which reduces volatile solids content by 40% and decreases the moisture to 90%?
Question 6
Determine the maximum speed (in kmph) of a train on BG track having radius of curvature 875m and cant of 10cm. assume cant deficiency as 7cm.
Question 7Multiple Correct Options
The left branch canal of main canal carries a discharge of 30 cumsec has culturable commanded area of 10000 ha. The intensity of carrying discharge of Ravi crop is 60% and base period is 130 days. The right branch of same main canal carries a discharge of 18 cumsec has culturable command area of 27000 Ha. Intensity of Rabi crop is 80% and base period is 130 days. Then which among the following statements is/are correct.
Question 8
A plant is designed for treatment of 10 MLD of waste water. Assume Methane produced = 60% of total volume of gas generated during digestion. Compute the efficiency of PST (in percent) provided in sewage treatment plant for removal of suspended solids. If CODinfluent = 2000mg/l, CODeffluent = 350 mg/L, BOD = 0.65 COD and concentration of suspended solids = 1500 mg/L.
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ESE & GATE CEGeneralAug 2ESE & GATE CE
