The lower limit of factor of safety against over turning in a gravity is _______________________?

Related Mcqs:

1. Specific gravity of a liquid is defined as the ratio of its specific weight to that of pure water and standard temperature and pressure. Therefore specific gravity is equal to ___________________?

   A. 1.0
   B. 1.2
   C. 1.5
   D. 2.0

2. For an economical design of gravity dam, the shear friction factor causec compression strength should lie between____________________?

   A. 1.5 to 4.0
   B. 2.0 to 4.0
   C. 2.5 to 4.5
   D. 3 to 5

3. The water particles held in soil pores of root zone by _____________ against gravity and is known as capillary water?

   A. Cohesive force
   B. Capillary force
   C. Tension force
   D. Gravity force

4. The ideal crop for wastewater or sewage irrigation is _______________________?

   A. Mango
   B. Banana
   C. Dates
   D. Orange

5. The floods which exceeds the designed magnitude of a reservoir is called _______________________?

   A. High floods
   B. Standard protects flood
   C. Intensive flood
   D. Storm flood

6. In ogee spillway the discharge is directly proportional to _______________________?

   A. H1/2
   B. H1/3
   C. H3/2
   D. H1/4

7. When the reservoir is full, the maximum compressive force in a gravity dam is produced ___________________?

   A. At the toe
   B. At the heel
   C. Within the middle third of base
   D. At centre of base

8. Sliding failure occurs in a solid gravity dam when____________________?

   A. Resultant of all forces cuts the base of the dam out side the toe
   B. Resultant of all forces cuts the base at the inner middle third point
   C. Ratio of over turning moments exceeds than unity
   D. Shear friction factor Is less than 1.5

9. 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

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