Geotechnical Engineering

Bearing Capacity

Question 1
Marks : +2 | -2
Pass Ratio : 100%
The allowable pressure, that should be selected for a maximum settlement is ____________
40 mm
25 mm
30 mm
10 mm
Explanation:
It is suggested that allowable pressure should be selected such that maximum settlement of any individual foundation is 25 mm.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
The loading to the test plate is applied with __________
Fluid tube
Hydraulic jack
Sand bags
Cross-joists
Explanation:
The loading to the test plate may be applied with the help of a hydraulic jack. The reaction of the hydraulic jack may be borne by either any of gravity loading methodor reaction truss method.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
The settlement of the plate in a load test is measured with the help of _________
Sensitive dial gauges
Test plate
Measuring unit
Datum bar
Explanation:
The settlement of the plate is measured with the help of sensitive dial gauges. For square plate, two dial gauges are used. The dial gauges are mounted on independently supported datum bar.
Question 4
Marks : +2 | -2
Pass Ratio : 100%
For simple spread footing on clayey soil, the differential settlement should not exceed __________
1/ 400
1/300
1/100
1/3
Explanation:
For simple spread footing on clayey soils, the allowable pressure should be such that the differential settlement does not exceed 1/300.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
For clayey and silty soils, which of the following bearing plate can be used?
Square plate and Concrete block
Circular plate
None of the mentioned
All of the mentioned
Explanation:
For clayey and silty soils and for loose medium dense sandy soils with N < 15, a 450 mm square plate or concrete block shall be used.
Question 6
Marks : +2 | -2
Pass Ratio : 100%
The bearing plate used in plate load test is in the shape of __________
Square
Rectangular and Circular
None of the mentioned
All of the mentioned
Explanation:
The bearing plate is either circular or square, made of mild steel of not less than 25 mm in thickness.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
According to Polish and Tokar brick masonry will crack, when the unit elongation amounts to ___________
0.5
0.005
1.0
0.05
Explanation:
According to Polishin and Tokar (1957), brick masonry will crack due to differential settlement when the unit elongation amount to 0.005.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
The plate load test consists in loading a rigid plate at the _________
Base of the footing
Bottom of the construction
Foundation level
All of the mentioned
Explanation:
The plate load test essentially consists in loading a rigid plate at the foundation level, and determining the corresponding to each load increment.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
The maximum allowable settlement for warehouses are _________
25
38
50
Less than 0.5
Explanation:
The allowable maximum settlement for warehouse type of structure is 50 mm.
Question 10
Marks : +2 | -2
Pass Ratio : 100%
The size of bearing plate, which used in plate load test varies from ___________
300 to 750 mm
25 to 100 mm
100 to 300 mm
25 to 300 mm
Explanation:
The bearing plate used varies in size from 300 to 750 mm with a chequered or grooved bottom.