GATE Exam Questions problems
- 1. The reaction time for calculation of stopping distance may be assumed as
Options- A. 5 secs
- B. 2.5 secs
- C. 0.5 secs
- D. 10.0 secs Discuss
Correct Answer: 2.5 secs
- 2. The percentage error in the computed discharge over a triangular notch corresponding to an error of 1% in the measurement of the head over the notch, would be
Options- A. 1.0
- B. 1.5
- C. 2.0
- D. 2.5 Discuss
Correct Answer: 2.5
- 3. A hydraulic turbine develops a power of 104 metric horse power while running at a speed of 100 revolutions per minute, under a head of 40 m. Its specific speed is nearest to one of the following :
Options- A. 100
- B. 628
- C. 523
- D. 314 Discuss
Correct Answer: 100
- 4. A 40° slope is excavated to a depth of 10 m in a deep layer of saturated clay of unit weight 20 kN.m3; the relevant shear strength parameters are cu = 70 kN/m2 and ?u = 0. The rock ledge is at a great depth. The Taylor's stability coefficient for ?u = 0 and 40° slope angle is 0.18. The factor of safety of the slope is :
Options- A. 2.0
- B. 2.1
- C. 2.2
- D. 2.3 Discuss
Correct Answer: 2.0
- 5. In a compaction test, as the compaction effort is increased, the optimum moisture content
Options- A. decreases
- B. remains same
- C. increases
- D. increases first and thereafter decreases Discuss
Correct Answer: decreases
- 6. The number of simultaneous equations to be solved in the slope deflection method, is equal to :
Options- A. the degree of statical indeterminacy
- B. the degree of kinematic indeterminacy
- C. the number of joints in the structure
- D. none of the above Discuss
Correct Answer: the number of joints in the structure
- 7. The cylinder strength of the concrete is less than the cube strength because of
Options- A. the difference in the shape of the cross section of the specimens
- B. the difference in the slendeness ratio of the specimens
- C. the friction between the concrete specimens and the steel plate of the testing machine
- D. the cubes are tested without capping but the cylinders are tested with capping Discuss
Correct Answer: the difference in the slendeness ratio of the specimens
- 8. In a steady radial flow into an intake, the velocity is found to vary as (1/r2), where r is the radial distance. The acceleration of the flow is proportional to
Options- A. 1/r5
- B. 1/r3
- C. 1/r4
- D. 1/r Discuss
Correct Answer: 1/r5
- 9. Principle involved in the relationship between submerged unit weight and saturated weight of a soil is based on
Options- A. Equilibrium of floating bodies
- B. Archimedes' principle
- C. Stokes' law
- D. Darcy's law Discuss
Correct Answer: Archimedes' principle
- 10. The drop manholes are provided in a sewerage system when there is
Options- A. change in alignment of sewer line
- B. change in size of sewers
- C. change in the elevation of ground level
- D. change from gravity system to pressure system Discuss
Correct Answer: change in the elevation of ground level
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