Civil Engineering :: UPSC Civil Service Exam Questions
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The following data pertain to a waste-water sample :
Initial D.O. = 8 mg/l
Final D.O. = 2 mg/l
Dilution = 1%.
The B.O.D. of the given wastewater sample is -
If p is the specific gravity of the material used in the design of a masonry dam of triangular section, then the ratio between the height and base width of the dam for structural safety and stability is equal to
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Consider the following statements relating to the stability of floating as well as submerged bodies :
1. A submerged body is stable when the centre of gravity is below the centre of buoyancy.
2. A floating body is stable when the centre of gravity is above the centre of buoyancy.
3. A floating body is stable when the centre of gravity is below the metacentre.
4. A submerged body is in stable equilibrium when the centre of gravity coincides with the centre of buoyancy.
Of these statements : -
A vehcile was stopped in two seconds by fully jamming the brakes. The skid marks measured 9.8 metre's. The average skid resistance coefficient will be
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Consider the following statements pertaining to intermediate stiffeners :
1. Stiffeners are provided to exclusively bear concentrated loads.
2. Stiffeners should bear tightly against top and bottom flanges.
3. Maximum spacing of stiffeners is restricted 180 t, where t is the thickness of web.
Which of the statements given above is are/correct ? -
A brick masonry wall of nominal thickness 200 mm carries an axial load of 26 kN/m and another load of 19 kN/m acting at an eccentricity of 45 mm. The resultant eccentricity and eccentricity ratio are respectively
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What is the correct sequence of formation of the following compounds during chlorination of water in which ammonia is present ?
1. NCl3
2. NH2Cl
3. NHCl2
Select the correct answer using the codes given below: -
Which one of the following statements is not correct ?
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In a project logic, four activities M, N, O and P are required to be completed before starting activity Q. If the finish times of M, N, O and P are 12 days, 14 days, 15 days and 17 days respectively, the earliest event occurrence time for the activity Q is
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A square column section of size 350 mm is 350 mm is reinforced with four bars of 25 mm diameter and four bars of 16 mm diameter. Then the transverse steel should be :
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A.
Settling and sludge digestion occur in septic tanks in one compartment
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B.
Settling and sludge digestion occur in Imhoff tank in different compartments
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C.
Septic tank is a low-rate anaerobic unit whereas an Imhoff tank is a high rate anaerobic unit
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D.
The rate of sludge accumulation in septic tank is approximately 40-70 litres/capita/year
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