The contour of equal water heads and pressure in the soil mass beneath retaining structure are called___________________?

Related Mcqs:

1. The field capacity is the amount of water retained by a saturated soil mass after being acted by gravity. The amount of water required to bring the soil moisture content of that soil up to field capacity is called__________________?

   A. Soil-moisture deficiency B. Field-moisture deficiency C. Equivalent-moisture deficiency D. a and b are correct...

2. The line in a flow net which shows the direction of flow of water through a soil mass beneath dam are called _________________?

   A. Equipotential lines B. flow lines C. Section lines D. Streak lines...

3. According to Blight, the percolating water seeps along the lower contour of the hydraulic structure, the length traversed by this water is called ______________________?

   A. Creep length B. Seeping length C. Piping D. Undermining...

4. At the end of hydraulic structure, the upward force of sub-soil water just becomes equal to the submerged weight of soil grains Then exit gradient will be called______________?

   A. Submerged exit gradient B. Critical exit gradient C. Balanced exit gradient D. All are correct...

5. The field capacity is the water retained by a saturated soil after free drainage of surplus water to the ground water table but the water retained by a saturated soil after being centrifuged by a centrifugal force of 1000 times that of gravity is called________________?

   A. Soil moisture B. Equivalent moisture C. Field moisture D. Available moisture...

6. A line shown on a contour map, set out on ground between certain constant points of slope is called___________________?

   A. Gradient B. Contour gradient C. Contour line D. Counter interval...

7. The property of saturated soil mass which transmits appreciable quantities . water is called___________________?

   A. Porosity B. Transmissibility C. Permeability D. Discharge...

8. The law that states that the discharge of sub-soil water is directly proportional to the loss of head and the area of soil sample and inversely proportional to to the length of soil sample ___________________?

   A. Archimed’s principle B. Darcy’s law C. Permeability law D. Thiem’s law...

9. That part of the flow in a stream comes from sub-soil or valley, may be beneath the top surface of channel bed is called__________________?

   A. Sub-surface flow B. Base flow C. Ground flow D. All are correct...

10. When the high flood level of the drain is sufficiently below the bed of the Canal that the drainage water flows freely under gravity, such structure is called___________________?

    A. Aqueduct B. Syphon-aqueduct C. Cross-Drainage D. Non-gravity structure...