71. What is the role of split spoon sampler in SPT?
72. What type of soil is best identified through a vane shear test?
73. Which boring method uses continuous flight helical screw?
74. Which geophysical method is best suited for detecting groundwater tables?
75. What is a core barrel used for in geotechnical drilling?
76. What does a borehole log primarily document?
77. Which method is used to obtain high-quality rock core samples?
78. What is the main advantage of using geophysical surveys in site investigations?
79. Which of the following provides the most accurate groundwater level measurement?
80. The Standard Penetration Test is carried out at intervals of:
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