12-04-2015, 11:00 AM
in viva they are different questions I am not getting the answers correctly so please help so that I can do lab well and answer that with confidence.
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viva questions related to soil mechanics lab
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in viva they are different questions I am not getting the answers correctly so please help so that I can do lab well and answer that with confidence.
04-04-2017, 10:25 AM
PERMEABILITY TEST
1) List the 'k' values for different soil types.
2) How is the permeability test performed in the field?
3) Mention other permeability tests that can be performed in the laboratory.
4) What is the application of soil permeability?
5) Deduce the expression of 'k' by the head drop method.
6) Is the hydraulic gradient constant in the variable head test? Why?
7) How is the permeability observed to the permeability at standard temperature reduced?
8) What is the need for two methods for the determination of 'k' in the laboratory?
9) Estimate the discharge velocity in the constant head test conducted. What is the filtration rate?
10) The time interval for the flow from h1 to h0 must be the same as that from h0 to h2. Why?
FIELD DENSITY REPLACEMENT METHOD
11) The depth of the hole in the field is limited to 15 cm. Why?
12) Explain the method of the core cutter for the determination of in situ soil density.
13) Explain the importance of soil density determination in in situ density.
COMPACTION TEST
14) What is the approximate value of the degree of saturation in WTO?
15) How does the amount of compaction affect the maximum dry density and the WTO?
16) What is the procedure for conducting the modified proctor test?
17) What is the use of Proctor's needle? How is it used to control compaction in the field?
18) How is soil compaction achieved?
CALIFORNIA BEARING RATIO TEST
19) How is the correction of the initial concavity in the load penetration curve?
20) What is the application of the CBR test results?
21) Write the procedure for finding expansion ratios for a soaked test.
22) What is the need to add additional weights?
LIMITS OF CONSISTENCY
23) Draw the plasticity graph and mark the soil tested and classify the soil.
24) What is the activity number?
25) Why does clay exhibit plasticity while silt does not?
26) Indicate the engineering uses of IP, IT, IL and IC.
27) Is the floor completely saturated at the shrink limit?
28) Explain the one-point method for determining the liquid limit.
29) If the plastics limit is greater than or equal to the liquid limit, how will you inform the PI of the material?
30) If the plastic boundary for sandy soil can not be determined, how will the plasticity index be reported?
31) Is the sample oven allowed to dry before the test? But because?
32) Find the compression index of the normally sensitive clay given. What is the use of it?
33) How will you differentiate between organic and inorganic soil using the liquid limit test?
2) How is the permeability test performed in the field?
3) Mention other permeability tests that can be performed in the laboratory.
4) What is the application of soil permeability?
5) Deduce the expression of 'k' by the head drop method.
6) Is the hydraulic gradient constant in the variable head test? Why?
7) How is the permeability observed to the permeability at standard temperature reduced?
8) What is the need for two methods for the determination of 'k' in the laboratory?
9) Estimate the discharge velocity in the constant head test conducted. What is the filtration rate?
10) The time interval for the flow from h1 to h0 must be the same as that from h0 to h2. Why?
FIELD DENSITY REPLACEMENT METHOD
11) The depth of the hole in the field is limited to 15 cm. Why?
12) Explain the method of the core cutter for the determination of in situ soil density.
13) Explain the importance of soil density determination in in situ density.
COMPACTION TEST
14) What is the approximate value of the degree of saturation in WTO?
15) How does the amount of compaction affect the maximum dry density and the WTO?
16) What is the procedure for conducting the modified proctor test?
17) What is the use of Proctor's needle? How is it used to control compaction in the field?
18) How is soil compaction achieved?
CALIFORNIA BEARING RATIO TEST
19) How is the correction of the initial concavity in the load penetration curve?
20) What is the application of the CBR test results?
21) Write the procedure for finding expansion ratios for a soaked test.
22) What is the need to add additional weights?
LIMITS OF CONSISTENCY
23) Draw the plasticity graph and mark the soil tested and classify the soil.
24) What is the activity number?
25) Why does clay exhibit plasticity while silt does not?
26) Indicate the engineering uses of IP, IT, IL and IC.
27) Is the floor completely saturated at the shrink limit?
28) Explain the one-point method for determining the liquid limit.
29) If the plastics limit is greater than or equal to the liquid limit, how will you inform the PI of the material?
30) If the plastic boundary for sandy soil can not be determined, how will the plasticity index be reported?
31) Is the sample oven allowed to dry before the test? But because?
32) Find the compression index of the normally sensitive clay given. What is the use of it?
33) How will you differentiate between organic and inorganic soil using the liquid limit test?
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