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Civil Engineering Gate 2015 Set-2 Questions with Answer
Ques 14 GATE 2015 SET-2
Ultimate BOD of a river water sample is 20 mg/L. BOD rate constant (natural log) is 0.15 day-1. The respective values of BOD (in %) exerted and remaining after 7 days are:
Ques 15 GATE 2015 SET-2
In a wastewater treatment plant, primary sedimentation tank (PST) designed at an overflow rate of 32.5 m3/day/m2 is 32.5 m long, 8.0 m wide and liquid depth of 2.25 m. If the length of the weir is 75 m, the weir loading rate (in m3/day/m) is _______.
Ques 16 GATE 2015 SET-2
The relationship between the length scale ratio (Lr) and the velocity scale ratio (Vr) in hydraulic models, in which Froude dynamic similarity is maintained, is:
Ques 17 GATE 2015 SET-2
A nozzle is so shaped that the average flow velocity changes linearly from 1.5 m/s at the beginning to 15 m/s at its end in a distance of 0.375 m. The magnitude of the convective acceleration (in m/s2) at the end of the nozzle is _______.
Ques 18 GATE 2015 SET-2
A hydraulic jump takes place in a frictionless rectangular channel. The pre-jump depth is yp. The alternate and sequent depths corresponding to yp are ya and ys respectively. The correct relationship among yp, ya and ys is:
Ques 19 GATE 2015 SET-2
A triangular gate with a base width of 2 m and a height of 1.5 m lies in a vertical plane. The top vertex of the gate is 1.5 m below the surface of a tank which contains oil of specific gravity 0.8. Considering the density of water and acceleration due to gravity to be 1000 kg/m3 and 9.81 m/s2 respectively, the hydrostatic force (in kN) exerted by the oil on the gate is _______.
Ques 20 GATE 2015 SET-2
The velocity components of a two dimensional plane motion of a fluid are: u = (y3 / 3) + 2x - x2y and v = xy2 - 2y - (x3 / 3). The correct statement is:
Ques 21 GATE 2015 SET-2
A pipe of 0.7 m diameter has a length of 6 km and connects two reservoirs A and B. The water level in reservoir A is at an elevation 30 m above the water level in reservoir B. Halfway along the pipe line, there is a branch through which water can be supplied to a third reservoir C. The friction factor of the pipe is 0.024. The quantity of water discharged into reservoir C is 0.15 m3/s. Considering the acceleration due to gravity as 9.81 m/s2 and neglecting minor losses, the discharge (in m3/s) into the reservoir B is _______.
Ques 22 GATE 2015 SET-2
Choose the most appropriate word from the options given below to complete the following sentence.
The official answered ______ that the complaints of the citizen would be looked into.
Ques 23 GATE 2015 SET-2
Choose the statement where underlined word is used correctly.
Ques 24 GATE 2015 SET-2
Which word is not a synonym for the word vernacular?
Ques 25 GATE 2015 SET-2
Mr. Vivek walks 6 meters North-east, then turns and walks 6 meters South-east, both at 60 degrees to east. He further moves 2 meters South and 4 meters West. What is the straight distance in metres between the point he started from and the point he finally reached?
Ques 26 GATE 2015 SET-2
Four cards are randomly selected from a pack of 52 cards. If the first two cards are kings, what is the probability that the third card is a king?
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