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- Question
The treatment that should be given to the water from a deep tube well is :
Options- A. pre-settling only
- B. coagulation and flocculation only
- C. filtration only
- D. disinfection only
- Correct Answer
- disinfection only
- 1. The permissible bending tensile stress in concrete for the vertical wall of an R.C. water tank made of M 25 concrete is :
Options- A. 8.5 N/mm2
- B. 6.0 N/mm3
- C. 2.5 N/mm2
- D. 1.8 N/mm2 Discuss
- 2. Consolidation in soils
Options- A. is a function of the effective stress
- B. does not depend on the present stress
- C. is a function of the pore water pressure
- D. is a function of the total stress Discuss
- 3. A steady discharge of 1 cumec flows uniformly in a rectangular channel 1 m wide at a depth of 250 mm. The slope of the channel bed is :
Options- A. adverse
- B. steep
- C. critical
- D. mild Discuss
- 4. The Prandtl mixing length for turbulent flow through pipes is
Options- A. independent of shear stress
- B. a universal constant
- C. zero at the pipe wall
- D. independent of radial distance from pipe axis Discuss
- 5. The slope of the e-log p curve for a soil mass gives :
Options- A. coefficient of permeability, k
- B. coefficient of consolidation Cv
- C. compression index, Cc
- D. coefficient of volume compressibility, mv Discuss
- 6. Shear stress develops on a fluid element, if :
Options- A. the fluid is at least
- B. the fluid-container is subject to uniform linear acceleration
- C. the fluid is inviscid
- D. the fluid is viscous and the flow is nonuniform Discuss
- 7. The modulus of subgrade reaction is obtained from the plate bearing test in the form of load-deformation curve. The pressure corresponding to the following settlement value should be used for computing modulus of subgrade reaction
Options- A. 0.375 cm
- B. 0.175 cm
- C. 0.125 cm
- D. 0.250 cm Discuss
- 8. A water treatment plant is required to process 28800 m3/d of raw water (density = 1000 kg/m3, kinematic viscosity = 10-6 m2/s). The rapid mixing tank imparts tank a velocity gradient of 900s-1 to blend 35 mg/l of alum with the flow for a detention time of 2 minutes. The power input (W) required for rapid mixing is
Options- A. 32.4
- B. 36
- C. 324
- D. 32400 Discuss
- 9. The characteristic strength of concrete is defined as that compressive strength below which not more than
Options- A. 10% of results fall
- B. 5% of results fall
- C. 2% of results fall
- D. None of the above. Discuss
- 10. In an iceberg, 15% of the volume projects above the sea surface. If the specific weight of sea water is 10.5 kN/m3 , the specific weight of iceberg ir kN/m3 is
Options- A. 12.52
- B. 9.81
- C. 8.93
- D. 7.83 Discuss
GATE Exam Questions problems
Search Results
Correct Answer: 1.8 N/mm2
Correct Answer: is a function of the pore water pressure
Correct Answer: adverse
Correct Answer: independent of shear stress
Correct Answer: coefficient of consolidation Cv
Correct Answer: the fluid is viscous and the flow is nonuniform
Correct Answer: 0.125 cm
Correct Answer: 32400
Correct Answer: 5% of results fall
Correct Answer: 8.93
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