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GATE CE 2022 Toppers Quiz 26
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Question 1
A 2D truss, with the applied loads s shown below in the figure. If AE = 40 kN, where A is cross section area and E is modulus of elasticity, then the strain energy (in kN-m) in the member XY is
Question 2
Determine the horizontal displacement (in mm) at B due to a variation of temperature from 20oC to 40 oC. ( Take α = 10 x 10 -6 / oC )
Question 3
A simply supported truss shown in the given figure carries a load as shown. The force in member BE is?
Question 4
The concentration of Sulfur Dioxide (SO2) in ambient atmosphere was measured as 30 µg/m3. Under the same conditions, the above SO2 concentration expressed in ppm is ___________.
Given: (P/(RT) = 41.6 mol/m3; where, P = Pressure; T = Temperature; R – universal gas constant; Molecular weight of SO2 = 64.
Given: (P/(RT) = 41.6 mol/m3; where, P = Pressure; T = Temperature; R – universal gas constant; Molecular weight of SO2 = 64.
Question 5
Two electrostatic precipitators (ESPs) are in series. The fractional efficiencies of the upstream and downstream ESPs for size dp are 80% and 65% respectively. What is the overall efficiency of the system for the same dp?
Question 6
A circular primary clarifier processes 5005 cubic meters of municipal wastewater every day. The overflow rate is 35m3/m2d. The diameter of the clarifier shall be _____.
Question 7
A motor rotates at 400 revolutions per minute. What will be the angular velocity of the motor in rad/sec?
Question 8
If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage in a 250 ml BOD bottle for 5 days at 20 °C, B.O.D of the sewage is
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