1. Compaction equipment can be used for sand or clay material as following
a) Roller for sand & clay
b) Foot-shape for sand & clay
c) Foot-shape for sand
d) Roller for sand
Roller for sand
2. What is a sedimentation rock ?
a) Granite
b) Marble
c) Sand rock
d) Clay
Sand rock
3. When earth quake happens what acceleration type happens under building
a) Settlement acceleration
b) Collapsible acceleration
c) Peak ground acceleration
d) None of the above
Peak ground acceleration
4. Foundations are placed below ground level to increase
a) Strength
b) Workability
c) Stability of structure
d) All of the above
Stability of structure
5. Compaction to backfill is used to
a) Reduce w/c in backfill material
b) Reduce air content in backfill material
c) Crushing of stones in fill material
d) None of the above
Reduce air content in backfill material
6. RQD-100 represent
a) Intact Rock
b) Factual Rock
c) Gravel
d) None of the above
Intact Rock
Note: RQD = Rock Quality Designation
RQD = Sum Lengths of Pieces greater than 10 cm / Total Core Length
7. If liquid limit of clay is 50, the plasticity index is 30, then plastic limit is
a) 20
b) 30
c) 50
d) 80
20
Note: (PI = L.L – P.L)
8. Un drained shear strength of clay is equal to:
a) Half of unconfined compressive strength of clay
b) Twice of unconfined compressive strength of clay
c) 1 ½ of unconfined compressive strength of clay
d) None of the above
Half of unconfined compressive strength of clay
9. Dense sand, number of blows from standard penetration test “SPT” is:
a) 0 – 10
b) 20 – 40
c) 50
d) 100
20 – 40
10. Very Dense sand, number of blows from standard penetration test “SPT” is:
a) 0 – 10
b) 20 – 40
c) more than 50
d) more than 100
Answer :- more than 50
Note :
1. Very Loose 0 – 4
2. Loose 5-10
3. Medium 11-30
4. Dense 31-50
5. Very Dense More Than 50
11. For better rock sampling we should use:
a) Double sleeve barrel
b) Single sleeve barrel
c) Main barrel
d) None of the above
Double sleeve barrel
12. In “ SPT”. N34 refers to :
a) Soil bearing
b) Shear capacity
c) Degree of compaction
d) None of the above
Soil bearing
13. Sand drain used to:
a) Help in compacting sand layers
b) Increase B/C of dry backfills
c) Enhance permeability of rock masses
d) Accelerate consolidation process
Accelerate consolidation process
14. Bearing Capacity of soil is function of:
a) Soil shear strength
b) Unit weight of soil
c) Foundation dimensions
d) All of the above
All of the above
15. Raft foundations are generally preferred to when the area required for individual footing is more than
a) 25% to total area
b) 30% of total area
c) 40% to total area
d) 50% of total area
50% of total area
16. What is proctor compaction test:
a) Check max dry density
b) Check min dry density
c) Check normal dry density
d) None of the above
Answer :- Check max dry density
Note:
i Proctor compaction test determine optimum moisture content
ii Achieve most dense and achieve its max density
17. The foundation which consists of a thick reinforced concrete slab covering whole area to support heavy concentrated loads is known as:
a) Combined footing
b) Strap footing
c) Raft footing
d) None of the above
Raft footing
18. Raft foundations are used for:
a) Providing increased area of foundation over poor B/C of soil
b) Spanning over small soft or loose pockets
c) Counter acting the hydrostatic effect
d) All of the above
All of the above
19. Pick up the incorrect statement from the following:
a) The retaining wall should be structurally capable to resist the applied earth pressure
b) The section of the retaining wall should be proportioned that if may not overturn by lateral pressure
c) The retaining wall should be safe against sliding
d) The foundation of the retaining wall should not be stressed beyond safe B/C due to its weight and the force resulting from the earth pressure
e) To drain off water from the earth retained , weep holes are provided near the top of the retaining wall
To drain off water from the earth retained , weep holes are provided near the top of the retaining wall
20. For providing a raft foundation, the following activities are involved
1 . Ramming the foundation bed
2. Excavation of the soil up to required level
3. Laying reinforcement over the foundation bed
4. Curing the concrete placed over raft
5. Pouring the concrete over raft
Correct Sequence is:
a) 1,2,3,4,5
b) 5,4,3,2,1
c) 2,1,3,5,4
d) 3,2,5,1,4
2,1,3,5,4
21. The following is very critical to structure:
a) Settlement
b) Differential settlement
c) Settlement rate
d) None of the above
Differential settlement
22. Factors affecting bearing capacity while design of foundation
a) Shear
b) Specific weight of soil
c) Dimensions of foundation
d) All of above
All of above
23. Consideration of long pile in Rock
a) Rock
b) Buckling
c) Strength of concrete
d) All of the above
Strength of concrete
24. The loose pockets in soil mass can be bridged safely by providing a raft foundation provided the soft area is smaller than
a) The column spacing
b) One – third the column spacing
c) Half the column spacing
d) Three-fourth the column spacing
e) None of the above
One – third the column spacing
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