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- Question
When a constant discharge 2.91 litres/sec. was obtained in a pumping test, the draw downs in the test wells at 3 m and 6.184 m were 2.6 m and 0.3 m respectively. If over-all depth of the pumping well was 16 m, the permeability of the soil, is
Options- A. 0.0005 cm/sec
- B. 0.001 cm/sec
- C. 0.002 cm/sec
- D. 0.01 cm/sec.
- Correct Answer
- 0.001 cm/sec
- 1. Pick up the incorrect statement from the following :
Options- A. Free surface ground water is subjected to atmospheric pressure
- B. Water table surface rises and falls with seasons
- C. Depth of water table is directly proportional to the rate of drawal of water
- D. Level of water table remains stationary
- E. None of these. Discuss
- 2. The reduced bearing of a line is N 87° W. Its whole circle bearing is
Options- A. 87°
- B. 273°
- C. 93°
- D. 3° Discuss
- 3. If the pressure carried by a CBR specimen at 2.5 mm penetration is 3.5 N/mm2, the CBR of the soil is
Options- A. 10%
- B. 35%
- C. 50%
- D. 70% Discuss
- 4. Rapid gravity filter can only remove turbidity of water upto
Options- A. 15 to 25 gm/litre
- B. 25 to 30 gm/litre
- C. 30 to 35 cm/litre
- D. 35 to 40 gm/litre
- E. 50 gm/litre. Discuss
- 5. The correction for parallax, is
Options- A. - 8".8 cos ?
- B. + .8" sin ?
- C. + 8".8 cos ?
- D. - 8".8 cos ?. Discuss
- 6. The effective length of a compression member of length L held in position at both ends but not restrained in direction, is
Options- A. L
- B. 0.67 L
- C. 0.85 L
- D. 1.5 L
- E. 2 L Discuss
- 7. Percussion drilling is unsuitable in
Options- A. unconsolidated sand
- B. unconsolidated gravel
- C. quick sand
- D. consolidated rocks. Discuss
- 8. The critical activity has
Options- A. maximum float
- B. minimum float
- C. zero float
- D. none of these. Discuss
- 9. Darcy's law is applicable to seepage if a soil is
Options- A. homogeneous
- B. isotropic
- C. incompressible
- D. all the above. Discuss
- 10. In India the modes of transportation, in the order of their importance, are
Options- A. air transport, shipping, roads, railways
- B. shipping, roads, railways, air transport
- C. roads, railways, air transport, shipping
- D. railways, roads, shipping, air transport
- E. shipping, railways, roads, air transport. Discuss
More questions
Correct Answer: Level of water table remains stationary
Correct Answer: 273°
Correct Answer: 50%
Correct Answer: 35 to 40 gm/litre
Correct Answer: + 8".8 cos ?
Correct Answer: L
Correct Answer: consolidated rocks.
Correct Answer: zero float
Correct Answer: all the above.
Correct Answer: railways, roads, shipping, air transport
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