GATE Exam Questions problems
- 1. The shape factor of the section shown in the below figure is
Options- A. 1.5
- B. 1.12
- C. 2
- D. 1.7 Discuss
Correct Answer: 2
- 2. If, for a fluid in motion, pressure at a point is same in all directions, then the fluid is :
Options- A. a real fluid
- B. a Newtonian fluid
- C. an ideal fluid
- D. a non-Newtonian fluid Discuss
Correct Answer: an ideal fluid
- 3. Sand drains are used to :
Options- A. reduce the settlement
- B. accelerate the consolidation
- C. increase the permeability
- D. transfer the load Discuss
Correct Answer: reduce the settlement
- 4. The unit for coefficient of subgrade modulus is
Options- A. kN/m3
- B. kN/m2
- C. kN/m
- D. kN.m Discuss
Correct Answer: kN/m3
- 5. In a BOD test using 5% dilution of the sample (15 ML of sample and 285 mL of dilution water), dissolved oxygen values for the sample and dilution water blank bottles after five days incubation at 20°C were 3.80 and 8.80 mg/L. respectively. Dissolved oxygen originally present in the undiluted sample was 0.80 mg/L. The 5-day 20°C BOD of the sample is
Options- A. 116 mg/L
- B. 108 mg/L
- C. 100 mg/L
- D. 92 Mg/L Discuss
Correct Answer: 92 Mg/L
- 6. It is proposed to widen and strengthen an existing 2-lane NH section as a divided highway. The existing traffic in one direction is 2500 commercial vehicles (CV) per day. The construction will take 1 year. The design CBR of soil subgrade is found to be 5 percent, Given: traffic growth rate for CV = 8 percent, vehicle damage factor = 3.5 (standard axles per CV), design life = 10 years and traffic distribution factor = 0.75. The cumulative standard axles (msa) computed are
Options- A. 35
- B. 37
- C. 65
- D. 70 Discuss
Correct Answer: 37
- 7. In network of pipes
Options- A. the algebraic sum of discharges around each circuit is zero
- B. the algebraic sum of (pressure + datum) head drops around each circuit is zero
- C. the elevation of hydraulic grade line is assumed for each junction point
- D. elementary circuits are replaced by equivalent pipes Discuss
Correct Answer: the algebraic sum of (pressure + datum) head drops around each circuit is zero
- 8. Use of coagulants such as alum
Options- A. results in reduction of pH of the treated water.
- B. results in increase of pH of the treated water.
- C. results in no chnage in pH of the treated water.
- D. may cause an increase in decrease of decrease of pH of the treated water. Discuss
Correct Answer: results in reduction of pH of the treated water.
- 9. The maximum permissible deflection for a gantry girder, spanning over 6 m, on which an EOT (electric overhead travelling) crane of capacity 200 kN is operating, is
Options- A. 8 mm
- B. 10 mm
- C. 12 mm
- D. 18 mm Discuss
Correct Answer: 8 mm
- 10. If the shear force at a section of beam under bending is equal to zero then the bending moment at the section is
Options- A. zero
- B. maximum
- C. minimum
- D. minimum or maximum Discuss
Correct Answer: maximum
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