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# ISRO QUIZ 15

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Question 1

The two straights are intersecting each other at the chainage of 2000 meters and the deflection angle between them is 50°. If a circular curve of 450 meters is required to be set out between these straights. The chainage of point of tangency for the curve is ________

Question 2

The value of 4dx +3xy2dy) where c is the circle x2 + y2 = 4 in xy plane is

Question 3

A treatment system consists of three filters in series having a BOD removal efficiency of 45%, 75% and 60% respectively. If the influent water has a BOD of 350 mg/L. What will be the oxygen deficiency of the efficient?

Question 4

Velocity distribution function for flow over a channel is represented by where u is the velocity in m/sec at a distance ‘z’ m from above the channel. If dynamic viscosity of fluid is 0.8 Ns/m2, then shear stress at 0.25 m from boundary is

Question 5

A 5 m thick clay layer lies between two layers of sand each 4 m thick, the top of the upper layer of sand being at ground level. The lower layer of sand is under artesian pressure. Calculate the effective vertical stress at the bottom of clay layer. Question 6

Table below gives the details for a certain crop using blaney– criddle equation and a crop factor of 0.75, the consumptive irrigation requirement will be: Question 7

A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 300 MPa on a plane at right angles to the former. It is subjected to a shear stress of 200 MPa on the same planes. The maximum normal stress will be

Question 8

On a two-lane NH, a curve of radius R m and length 275 m is designed to have a stopping sight distance is 120 m and width of each lane is 4.5 m. If angle of curve is 60 degree  , S is set back  distance , then value of S is
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